Annotations used to express developer intentions that can't otherwise be deduced by statically analyzing source code.

RFC4122 (v1, v4, v5, v6, v7, v8) UUID Generator and Parser for Dart

Value types with builders, Dart classes as enums, and serialization. This library is the runtime dependency.

Provides encoders and decoders for various archive and compression formats such as zip, tar, bzip2, gzip, and zlib.

Utility functions and classes related to the 'dart:async' library.

Provides a standard representation for source code locations and spans.

Full-featured XML for Dart — DOM parsing, SAX streaming, XPath 3 querying, and a fluent builder API.

A dynamic parser framework to build efficient grammars and parsers quickly.

A library that contains a Dart API for the JSON-based protocol for `hook/build.dart` and `hook/link.dart`.

A parser for YAML, a human-friendly data serialization standard

Utilities for handling media (MIME) types, including determining a type from a file extension and file contents.

A library to perform Bash-style file and directory globbing.

Utility functions and classes related to the dart:typed_data library.

Versions and version constraints implementing pub's versioning policy. This is very similar to vanilla semver, with a few corner cases.

Manage a finite pool of resources. Useful for controlling concurrent file system or network requests.

Useful Unicode glyphs and ASCII substitutes.

A library to programmatically manipulate source map files.

Utilities for the Dart VM Runtime including support for ANSI colors, file copying, and standard exit code values.

Utilities for converting between data representations. Provides a number of Sink, Codec, Decoder, and Encoder types.

A class for parsing strings using a sequence of patterns.

A flexible syntax for boolean expressions, based on a simplified version of Dart's expression syntax.

A package for manipulating stack traces and printing them readably.

Collections and utilities functions and classes related to collections.

A string-based path manipulation library. All of the path operations you know and love, with solid support for Windows, POSIX (Linux and Mac OS X), and the web.

An abstraction for two-way communication channels based on the Dart Stream class.

Library for 32- and 64-bit signed fixed-width integers with consistent behavior between native and JS runtimes.

A package for applying source maps to stack traces.

Simple package for parsing pubspec.yaml files with a type-safe API and rich error reporting.

A fakeable wrapper for dart:core clock APIs.

A library for YAML manipulation with comment and whitespace preservation.

A templating library that implements the Mustache template specification

A pluggable, mockable platform information abstraction for Dart.

APIs for parsing and manipulating HTML content outside the browser.

A vector math library for 2D and 3D applications, supporting 2D, 3D, and 4D matrices.

A pluggable, mockable process invocation abstraction for Dart.

String replacement with operations that are Unicode/grapheme cluster aware.

Graph algorithms that operate on graphs in any representation.

A library to take config values from configuration files, CLI arguments, and environment variables.

A library for parsing and analyzing CSS (Cascading Style Sheets).

Algorithms and utilities that power the Material Design 3 color system, including choosing theme colors from images and creating tones of colors; all in a new color space.

Immutable collections based on the SDK collections. Each SDK collection class is split into a new immutable collection class and a corresponding mutable builder class.

A Dart package for reading XDG directory configuration information on Linux.

A package to add shell command completion to your Dart application

A convention and utilities for package extension discovery.

Exposes the POSIX api on OSx and Linux

Flutter plugin for launching a URL. Supports web, phone, SMS, and email schemes.

Dart implementation of sprintf. Provides simple printf like formatting such as sprintf("hello %s", ["world"]);

A collection of utilities to transform and manipulate streams.

A native Dart implementation of the D-Bus message bus client. This package allows Dart applications to directly access services on the Linux desktop.

A Dart package that helps to implement value based equality without needing to explicitly override == and hashCode.

RxDart is an implementation of the popular ReactiveX api for asynchronous programming, leveraging the native Dart Streams api.

Flutter plugin providing detailed information about the device (make, model, etc.), and Android or iOS version the app is running on.

Time zone databases and time zone aware `DateTime`.

Constants for ASCII and common non-ASCII character codes. Integer constants corresponding to the code points of individual characters.

A library to invoke the native C compiler installed on the host machine.

Quiver is a set of utility libraries for Dart that makes using many Dart libraries easier and more convenient, or adds additional functionality.

Cross-platform 'dart:io' that adds browser support for HttpClient and some other "dart:io" APIs.

Lock mechanism to prevent concurrent access to asynchronous code.

Shared utility functions for package:jni and package:jnigen.

Changes the case of the input text to the desire case convention.

A simple package for tracking the performance of synchronous and asynchronous actions.

Runtime library for protocol buffers support. Use with package:protoc_plugin to generate Dart code for your '.proto' files.

Simple direct Service Locator that allows to decouple the interface from a concrete implementation and to access the concrete implementation from everywhere in your App"

Allocation tracking and leak detection for Dart FFI code.

The Diff Match and Patch libraries offer robust algorithms to perform the operations required for synchronizing plain text.

A library providing a tuple data structure.

Replacement for dart.io.Platform class which works on Web as well as Desktop and Mobile. Allows platform checks in your view/model layer easily.

Library for use by client APIs generated from Discovery Documents.

JSON Pointer (RFC 6901). Reads/writes referred values in JSON documents.

Rich, simple, synchronous command-line prompt library for Dart.

Type-safe DateTime and Duration calculations, powered by extensions.

A starting point for Dart libraries or applications.

Provides a simple class for parsing and comparing semantic versions as defined by http://semver.org/

Unicode characters library auto generated from http://www.unicode.org.

Function for sanitizing HTML to prevent XSS by restrict elements and attributes to a safe subset of allowed values.

Package to simplify and improve JSON parsing in isolates by keeping one isolate running per instance.

Superpowers for Dart. Collection of useful static extension methods.

Plugin that allows Flutter apps to generate and print documents to compatible printers on Android, iOS, macOS, Windows, and Linux, as well as web print.

A utility for counting in a variety of languages and styles. Made for lists.

A high-quality CSV library. Encode and decode CSV strings, with stream support (one row per event), auto-detection, and Excel compatibility. The string must be comma (configurable) separated values.

The decimal package allows you to deal with decimal numbers without losing precision.

Proj4dart is a Dart library to transform point coordinates from one coordinate system to another, including datum transformations (Dart version of proj4js/proj4js).

A simple Dart package exposing a Color class which can be used to create, convert, alter, and compare colors in a variety of colorspaces.

The rational package allows you to deal with rational numbers.

A easy dart package to decode JSON Web Tokens, and to check and give its expiry dates

A simple (but correct) dart class for validating email addresses

Utility functions and classes to work with byte buffers and streams efficiently, to read and write binary data formats.

Provides easy access to useful information about the system (architecture, bitness, kernel, memory, operating system, CPU, user).

A library useful for creating fuzzy timestamps. (e.g. "15 minutes ago")

A 'dart:html' that works in all platforms, including Flutter and server-side. Eases cross-platform development and HTML / XML processing.

A library to write YAML documents, supporting Object encoding and 'dart:convert' 'Converter'.

This small library helps you to decode Json Web Tokens, you can also know if a JWT is already expired.

Checkers and tools to ensure your app is accessible to all. Ensures your app is accessible from day one, by checking your interface as you build it.

A simple library to manage properties file (and something more) in Dart

Library providing an adaptive number implementation. On JS runtimes, a 64-bit signed fixed-width integer will be used and for all other platforms the default Dart int data type.

A process invocation abstraction for Dart that manages a multi-process queue.

A common platform interface for the speech_to_text plugin.

Simple package making it easy to dispose (aka cancel, aka close) your objects.

Easy hexadecimal convertion using dart:convert API.

A library for terminal string styling as an extension on `String`.

Utilities for building and parsing URIs, including support for parsing URI templates as defined in RFC 6570.

Give your types superpowers and spice up your generics. Make types great again.

A state machine based, bring-your-own-io style implementation of the ZMODEM protocol in pure Dart

MIME type library for Dart HTTP server applications.

A common platform interface for the vibration plugin.

Flutter plugin for launching Android Intents. Not supported on iOS.

A Dart template generator which helps teams generate files quickly and consistently.

A fast algorithm for finding polygon pole of inaccessibility. Useful for optimal placement of a text label on a polygon.

A simple and efficient implementation of an unmodifiable sparse list based on the binary search algorithm.

Platform independent OS detection.

An API for defining and verifying files and directory structures.

Package including lot helpers for easy developing on dart language

A common platform interface for the open_file plugin.

A minimal & safe utility to parse URIs.

A collection of customizable interactive command-line components.

A templating library that implements the Mustache template specification, but is extendable.

Provides easy access to system resources (CPU load, memory usage).

Low-level link (text, URLs, emails, phone numbers, user tags) parsing library in Dart.

An extremely easy-to-use method call debouncer package for Dart/Flutter.

Wraps an object in a dedicated isolate and forwards method calls to it, so timer- or event-loop-driven work (e.g. progress spinners) keeps running even when the calling isolate's event loop is blocked. Dependency-free.

Dart library for parsing phone numbers. Inspired by Google's libphonenumber and PhoneNumberKit for ios.

Miscellaneous Dart libraries, including interoperability with java.io.DataInputStream and java.io.DataOutputStream.

Mutual exclusion with implementation of normal and read-write mutex

A Flutter plugin for adding badges to your app icon. Supports iOS, Android, and macOS.

The platform interface for the uni_links plugin.

Implementation of RFC 9535 - JSONPath: Query Expressions for JSON. Reads and writes values in parsed JSON objects using queries like `$.store.book[2].price`.

A password strength estimator. Can be used to show the user whether the password they chose is strong against bruteforce or dictionary attacks.

Git command line wrapper. Exposes a Git directory abstraction that makes it easy to inspect and manipulate a local Git repository.

An implementation of RFC 9485 I-Regexp: An Interoperable Regexp Format. Checks the I-Regexp for correctness, allows matching by substring or by entire string.

A debouncer and throttle that works with Futures, Streams, and callbacks.

A library for common features required by console applications, including color formatting, keyboard input, and progress bars.

Parser and encoder for TOML v1.0.0 (Tom's Obvious, Minimal Language) configuration files.

A fast algorithm for finding polygon pole of inaccessibility implemented as a Dart library. Useful for optimal placement of a text label on a polygon.

New Dart runtime for ANTLR4.

A Dart package that parses LCOV coverage files into structured records, providing easy access to line, branch, and function coverage data.

Explicitly reads environment variables into a dart file from a .env file for more security and faster start up times.

Creates Color instance from CSS color string according to https://drafts.csswg.org/css-color-3

An internal Flutter plugin for flutter_quill package to access platform-specific APIs

Reactive Extensions Library for Dart providing an API for asynchronous programming with observable streams.

Some of the most common and useful string methods, Inspired by various other programming languages.

Common util classes for Strings, Dates, X509, PKCS, Cryptographie and more.

Unicode 17.0 Normalization - NFC, NFD, NFKC, NFKD. This is a Dart port of [walling/unorm](https://github.com/walling/unorm).

Dart implementation of sdp-transform

ShortId creates short non-sequential url-friendly unique ids. Perfect for url shorteners, MongoDB and Redis ids etc. (port from js)

c#-like OneOf inspired from https://github.com/mcintyre321/OneOf

A common platform interface for the flutter_blue_plus plugin.

JSON Schema implementation in Dart

High performance CSV encoder and decoder with retained types and nullability.

A simple API to format dates. Provides various constants to build Date format string. Use `formatDate` method to format date according to format string.

Dart library for validating and sanitizing strings, especially those from user input.

FlatBuffers reading and writing library for Dart. Based on original work by Konstantin Scheglov and Paul Berry of the Dart SDK team.

A library to make it easy to extract OSS license information from Dart packages using pubspec.yaml

Calculate the difference between two lists as list of edit operations. Used for example for implicitly animating Flutter lists without having to maintain a StatefulWidget.

A common platform interface for the flutter_dropzone plugin.

Fetch accurate time or current DateTime object from (NTP) Network Time Protocol server.

JSON with comments and trailing commas.

String validation and sanitization for Dart.

Dart interface to irondash MessageChannel.

A transparent image in Dart code, represented as a Uint8List.

Comprehensive clipboard access package for Flutter. Supports reading and writing of rich text, images and other formats.

Colorize console output

Simplifies manual JSON parsing with a type-safe API. No dynamic, no manual casting. Flexible inputs types, fixed output types. Useful parsing error messages

A flutter plugin which could read image,files from clipboard and write files to clipboard.

Better conversion of ENUMs to string. Dart has annoying EnumName.ValueName syntax when calling enum.toString, this package fixes that.

Simple package for parsing pubspec.lock files with a type-safe API and rich error reporting.

Fixed scale decimal numbers with mathematical operations, formatting and parsing.

Load environment variables from a `.env` file.

Easy access to FlutterView, FlutterBinaryMessenger and FlutterTextureRegistry for FFI.

An extension on String for the missing methods for camelCase, PascalCase, Capital Case, snake_case, param-case, CONSTANT_CASE and others.

Immutable lists, sets, maps, and multimaps, which are as fast as their native mutable counterparts. Extension methods and comparators for native Dart collections.

RBush — a high-performance R-tree-based 2D spatial index for points and rectangles.

A package of formatters for international phone numbers, credit / debit cards and a masked formatter

A simple implementation of an Ordered Set for Dart that allows multiple items with the same priority.

Money2 is a high-precision library for storing, parsing, formatting, and performing arithmetic on monetary values and currencies. Fixed-decimal math, multi-currency support and conversions, parsing and formatting. (Money.parse('$2010.00') * 10).format('SCC#,##0') -> $US20,100

Decode Exif metadata from digital image files. Supported formats: TIFF, JPEG, HEIC, PNG, WebP

A query string encoding and decoding library for Dart. Ported from qs for JavaScript.

Charset encoding and decoding Library, include iso-(2-15), windows series, gbk, euc-jp, euc-kr, shift-jis. And supportted charset detect, canEncode, canDecode.

Allows send emails from flutter using native platform functionality.

A lightweight library for GeoJSON data types available dart and flutter.

A small library for detecting if a point lies inside a polygon

A lightweight library streaming event-based XML Parser to parse XML Documents as a SAX.

A full featured library for writing and running Dart benchmarks.

A small and fast module using a sweepline algorithm to detect intersections between polygons and/or polylines.

Flutter clipboard with text, Rich Text (HTML), and image support.

A lightweight library for detecting the running browser and OS

Large collection of String functions aimed at extending the String class whilst providing safer methods for working with nullable Strings.

Simple library for generating random ascii strings by default using Random from 'dart:math'.

Recurrence rule parsing & calculation as defined in the iCalendar RFC

Process run helpers for Linux/Win/Mac and which like feature for finding executables.

Insert an element between each element of an Iterable or List.

Smithy client runtime for Dart with common utilities for I/O and serialization.

A framework for checking values against expectations and building custom expectations.

A library for converting HTML to Markdown. It supports CommonMark, simple table and custom converting rules.

A library for parsing and evaluating mathematical expressions, supporting real numbers, vectors, and basic interval arithmetic.

Common dart libraries used by LaunchDarkly SDKs. This is an internal package not designed for general use.

A tiny, secure, URL-friendly, unique string ID generator. Dart implementation of ai/nanoid

A Flutter plugin to access advertising ID.Wraps ASIdentifierManager.advertisingIdentifier (on iOS) and advertising ID (on Android).

Simple in-memory fuzzy text searching library.

iOS compatible plist serialization and deserialization library for Dart.

Dart extensions for translating integers to Roman numerals and Roman numeral strings to integers.

This package provides the Stringprep (rfc4013) Profile for User Names and Passwords for dart. A port of https://github.com/reklatsmasters/saslprep to the dart lang

A Javascript engine to use with flutter. It uses Quickjs on Android and JavascriptCore on IOS

MessagePack implementation for dart. MessagePack is an efficient binary serialization format. It lets you exchange data among multiple languages like JSON.

SSH and SFTP client written in pure Dart, aiming to be feature-rich as well as easy to use.

Android implementation of the flutter_libphonenumber plugin.

A full-featured package used to build and validate JSON schemas in Dart.

Dart package to render JSON data to YAML with built-in automatic beautifier and support for Dart pubspec.yaml and pubspec.lock conventions

Read, write and modify a pubspec.yaml with a type safe API including retention and modifications of comments and out of spec content.

Leverages libphonenumber to allow for asynchronous and synchronous formatting of phone numbers in Flutter apps.

A Sass implementation in Dart.

A Dart Circular Buffer container based on List with a fixed capacity.

A cancellable event emitter which supports context based event driven programming.

A common platform interface for the flutter_libphonenumber plugin.

Web implementation of the flutter_libphonenumber plugin.

Pure Dart Brotli decoder.

Automatically organize your dart imports

A collection of functions that allow you to interact with the file system and OS environment from any platform that supports dart:io. Copy, move, delete files and directory trees, search for files, create temp files and directories.

Like dart:io but with Node.js.

Android implementation of the quill_native_bridge plugin.

Parse a git commit message using the Conventional Commits specification.

A pure dart implementation of the BlurHash algorithm. This package provides both an encoder and a decoder, as well as some utility extensions.

String validation and sanitization for Dart.

Simple CountUp timer / CountDown timer. It easily create app of stopwatch.

Message Pack implementation for dart

A pure dart package to apply useful rate limiting strategies on regular functions.

Converts a path such as '/user/:id' into a regular expression.

Returns cached result of function call when inputs were not changed from previous invocation.

Utilities to make working with 'Duration's easier. Formats duration in human readable form and also parses duration in human readable form to Dart's Duration.

A Flutter plugin which helps you to open another app from your app

Provides Terminal/Ansi functions used by DCli the Dart Console SDK but is also intended to be used directly.

Retrieve Android/iOS device user agents in Flutter.

Utilities for working with chunked streams, such as byte streams which is often given as a stream of byte chunks with type `Stream<List<int>>`.

A Flutter plugin for app termination and restart with data clearing options.

Access to shared application group container on iOS & macOS.

MCP server that lets AI agents (Claude, Copilot, Cursor) inspect and interact with running Flutter apps — tap, scroll, type, and screenshot.

Converts a string into a slug. Useful for URLs, filenames, IDs, and more.

Text wrapping and filling. It's a pure port of textwrap from Python.

Low level synchronization primitives built on dart:ffi.

Common code used by multiple dcli packages.

Jinja2 template engine for Dart. Variables, expressions, control structures and template inheritance.

iris_method_channel is a method channel that communicate between C/C++(iris) and dart, which is used by Agora Flutter SDKs.

Shared code between the stacked packages.

Dart console SDK - write console (cli) apps/scripts using dart.

Read and write .ini files

Error handler library for type-safe and easy work with errors on Dart and Flutter. Either is an alternative to Nullable value and Exceptions.

Shelf middleware to GZIP encoding responses, with compression level and compression scope by content-type.

A Flutter Plugin for Plist parser supporting XML and Binary formats.

Renders style-able flex ascii tables.

Utilities for diffing two JSON objects

Basic Flutter/Dart classes for ESC/POS printing. Ticket class generates ESC/POS commands that can be sent to a thermal printer.

Flutter plugin that allows you to check if an app is installed/enabled, launch an app and get the list of installed apps.

A tiny, secure, URL-friendly, unique string ID generator, nanoid with a pure Dart API.

Queue up futures from multiple sources and await their return anywhere in your code.

A bugless implementation of BigDecimal in Dart based on Java's BigDecimal

Bson library for Dart. BSON is a binary-encoded serialization of JSON-like documents. The package allows also eJson and object serialization/deserialization.

WeakMap is a map where the keys are weakly referenced. WeakContainer lets you check if an object is the same you had before. Cache functions for memoization with weak-references.

A set of helpers for resolving names and paths of dynamic libraries.

A simple way to cache values that result from rather expensive operations.

Fast and error resilient codecs. Supports Base2, Base8, Base16, Base32, Base64, BigInt, UTF-8, and the PHC/crypt string format.

a configurable package to detect shake gestures, using the sensors_plus package.

Punycoder is a well tested Dart implementation of the RFC 3492 Punycode specification

Extension method for translation Time Zone Id to ISO 3166-1 alpha-2 code (e.g. 'Asia/Seoul' to 'KR')

A simple utility for creating Graphviz directed graphs using an object oriented API.

A Flutter plugin for the Android Play Install Referrer API. You can use it to securely retrieve referral content from Google Play.

Extensions for the core dart language classes.

Extensions for non Dart core packages.

A lib to validate, format, strip and generate CPF and CNPJ numbers from Brazil.

Provides list of ISO 3166-1 country codes in enum-like class, as well as parsing and user-assigned code elements

Low level synchronization primitives built on dart:ffi.

Substitutes the Platform class, ensuring works across all platforms.

A common platform interface for the hotkey_manager plugin.

Nonce contains a static generator that generates random alphanumeric strings, and can be constructed as an object containing a generated string.

Dart string formatting with Python-style braces and printf mini-languages.

Multiple results for dart. Inspired by dartz's Either and Kotlin's sealed classes

GBK codec converter (enCode and deCode) library includes bytes codec.

Dart async extensions, to help usage of Future, FutureOr and async methods. Also allows performance improvements when using sync and async code.

Matrix 2D is a package for mathematical 2D array functions and manipulations in Dart, similar to NumPy

Lookup device marketing names for Android, iOS and browsers with ease. No internet connection or database required.

A Changelog manipulation library. Read/modify/write your CHANGELOG.md. Inspired by keepachangelog.com.

JSON Patch (RFC 6902). Implements Add, Copy, Move, Remove, Replace, Test operations on JSON documents using JSON Pointers.

A renderer (printer) for the markdown library. Renders the parsed AST back into markdown.

tvOS (Apple TV) implementation of the flutter_secure_storage Flutter plugin, provided by flutter-tvos.

Extension on Dart `pub_semver` library. Provides `nextBuild`, `nextPreRelease` and `change`.

An intuitive Event-based system, inspired by NodeJS's Event Emitter. Allows for multiple data types with type safety events. Based on JavaScript and suitable for Dart and Flutter.

Asynchronous tasks and parallel executors (similar to thread pools) for all Dart platforms (transparently), without having to deal with `Isolate` complexity.

Fuzzy search in Dart. Initially a code conversion, subset of Fuse.js.

An implementation of the punycode algorithm.

Fast base encoding / decoding of any given alphabet dart implementation library.

Date manipulation library. DateTime extensions. Also includes an Interval object.

A Simple Linear Algebra Package enabling easy Matrix calculations.

Chinese character conversion pinyin library.Accurate and complete Chinese character dictionary.Fast conversion.

Utilities for working with English words. Counts syllables, generates well-sounding word combinations, and provides access to the top 5000 English words by usage.

A portable Markdown library written in Dart that can parse Markdown into AST and HTML.

Render text tables for your command line applications. Use padding, spans, custom borders, ANSI colors and more!

Contains info about current platform such as Build mode and Operating system.

Charset/encoding converter that uses underlying platform - no external dependencies

A streaming JSON parser optimized for LLM responses. Parse JSON reactively as it streams in, with path-based subscriptions and type-safe property access.

A time and space efficient collection of data structures and algorithms to deal with data in Dart.

The convenient enum of 256 colors for console. This library gives the color code for the console an easily recognizable name.

Utility to convert an upper or lower case Web3/Ethereum address to a checksum address (EIP55).

Statsig SDK for Dart. Statsig enables developers to ship code faster and more safely.

Adds extension method to get the ISO 8601 week of year from a date

Comprehensive string manipulation plugin for dart. Handles operations on latin, non latin and grapheme clusters alike! Features inspured from VocaJs

A common platform interface for memory_info.

The Usercentrics Apps SDK is a Consent Management Platform framework that ensures legal compliance for different legal frameworks.

Terminal string styling done right with a number of builtin style functions.

This project parses and evaluates Common Expression Language (CEL) programs against some inputs.

Translates dart:ffi calls on the web to WebAssembly using dart:js

Dart package to compute base 58 encoding. This encoding is typically used for crypto currencies such as Bitcoin.

Extension method for translation ios utsname to full product name.

Encoder and decoder for a canonical JSON format, useful when cryptographically hashing or signing JSON objects.

Simple union types using extension types. Types: the union of `int` and `String` is `Union2<int, String>`. Values: `42.u21` is `42` with type `Union2<int, Never>`.

Query builder for mongo_dart

A pure Dart implementation of JSONata - JSON query and transformation language for querying and transforming JSON data.

A library to compute rankings of players. Uses ELO for dynamic rankings, and Bradley-Terry for static rankings.

A free CAPTCHAs alternative to enhance security and protect against bots.

A package that automatically generates JSON files for passing to the Dart --dart-define command and a Defines class for type-safe programmatic access. It streamlines environment constant management for different flavors and build-time constant injection.

Dart runtime extensions.

YamlX is a library for parsing and manipulating YAML files in Dart.

Stream generator.

Light-Weight Flutter utilities.

Notify wait/notify library.

A package that securely deploys files to the workspace from data retrieved from secret management tools such as the op inject command. It integrates with secret management tools like 1Password and AWS Secrets Manager to automate the distribution of sensitive files.

A package to get humanized file sizes. Translate raw file size into human readable strings.

General utilities for Dart projects.

A dart library for converting country codes to emoji flags.

Run multiple future-returning & async functions with limited concurrency.

emoji-regex offers a regular expression to match all emoji symbols and sequences (including textual representations of emoji) as per the Unicode Standard.

Forus Labs' standard library extension. Utilities for date-times, timezones, collections, monads & more.

Lexicographically sortable, 128-bit identifier (UUID) with 48-bit timestamp and 80 random bits. Canonically encoded as a 26 character string, as opposed to the 36 character UUID.

Fluri is a fluent URI library built to make URI mutation easy.

Google reCAPTCHA v3 plugin for Flutter Web. A Google reCAPTCHA is a free service that protects your website from spam and abuse.

Shelf Plus is a quality of life addon for your server-side development within the Shelf platform.

Collection of simple string and other types utilities.

Provides data for world languages in the form of sealed classes.

SIMD-based linear algebra and statistics, efficient manipulation with numeric data

A auto-completion engine for Dart/Flutter, based around an optimized Trie implementation.

A password strength checker for flutter, works for Android and iOS.

Support for character encodings / charsets / codecs missing from `dart:convert` - ISO 8859 / Latin, Windows, DOS, GBK, Big5, and KOI8 R/U.

Retrieve the current Dart and Flutter SDK semantic versions with easy-to-use nullable getters for streamlined version management.

A package that helps you work with fractions and mixed fractions.

Country codes is an helper package that provides country details given a particular localization, such as dial codes, ISO 3166 codes (alpha-2, alpha-3) and country names.

Provides data for world currencies in the form of sealed classes.

Allows to kindly ask users to rate your app if custom conditions are met (eg. install time, number of launches, etc...).

A Flutter package provides some implementations of TextInputFormatter that format input with pre-defined patterns

A package that detects credit card types based on the current credit card number patterns

Blazing fast, cross-platform ObjectId implementation for the dart language.

Easy async task cancellation for tasks using cancellation tokens in Dart.

That package contains elements to easilly wrap JS library in Dart.

A tool to view and check the licenses of a package's dependencies. It also generates a disclaimer file containing all the package licenses.

Provides easy access to system resources (CPU load, memory usage).

A Dart implementation of URI Templates defined in (RFC 6570).

Dart SDK for AG-UI protocol - standardizing agent-user interactions through event-based communication

A library of Dart and Flutter utility classes that are used across other components of the atPlatform.

A library for managing asynchronous processes inspired by the Go sync package.

Brings HexColor for your dart and flutter projects, convert material colors to hex colors

jmespath is a dart implementation of JMESPath, which is a query language for JSON.

This package is not intended for wide use. It provides a temporary API to solve the problem: "Given an object some generic type A, how do I construct an instance of generic type B with the same type argument(s)?"

📃 Calculates a minimal list of operations that convert one list into another if applied in order.

A cross-platform plugin for adding embedded Python runtime to your Flutter apps.

A Flutter plugin for debouncing can be used to simplify the implementation of debouncing logic in Flutter applications, making it easier to handle user interactions effectively.

A wrapper for wasm which can be used as a drop-in replacement for dart:ffi for Web platform.

Package to remove unused keys in arb files, across all translations

Binarize allows for a more streamlined and extendable binary creation experience.

Utilities for formatting Dart's DateTime object using standard date/time notation or as a relative time offset.

Date and time library for Flutter, Web, and Server with support for timezones, calendars, cultures, formatting and parsing.

Provides data for world countries in the form of sealed classes.

A Dart library containing convenient extension methods on basic Dart objects.

Dart library to encode, decode and pretty print hex string

Utility functions and methods to generate random BigInt, generate random prime BigInt and check if BigInt is prime.

Dart library that provides simple and elegant way to decode and encode PEM.

A simple shell commands executor.

A pure Dart implementation of Handlebars template engine.

A Dart library that contains various utility classes such as atSign, atmetadata, configuration, and logger.

This flutter plugin is useful to find the origin of currently installed apk/ipa.

Calculate the modulo 97.

A validation library for IBANs included in the official registry. Also supports some unofficial ones.

Flutter bindings for the Rust Vodozemac library

Simple Dart package for creating mailto links in your Flutter apps

Handy utility to unescape string representation (unicode, newline, tab, etc).

A powerful and extensible Liquid template engine for Dart. Supports full Liquid syntax, custom tags and filters, and high-performance parsing and rendering.

Provides UrlBuilder functions.

Useful and simple flutter color handler.

The at_client library is the non-platform specific Client SDK which provides the essential methods for building an app using the atProtocol.

Supercharged brings all the comfort features from languages like Kotlin to all Dart developers.

Provides a collection of user input/output functions for the DCli Dart Console SDK, but is also intended for direct use when you just need to add user input to your console app without the full DCli set of features.\n

Secure app content visibility when user leave app. It will hide content in the app switcher and display a frost barrier above locked content when the user get backs

A Flutter package to query the device for installed email apps and open them programmatically.

A sane UUID implementation with support for generating and handling v1, v4 and v5 UUIDs according to RFC4122.

A dart port of the liquid / django HTML template engine.

FHIR library of versions R4, STU3, DSTU2, and R5 (draft) for Dart & Flutter.

A package to get the ip address of the current device. Uses https://api64.ipify.org to get the system IP.

List manipulation, ordering, searching, summarizing, etc.

Plugin to deal with Apple Wallet & PKPass files on iOS. You can check for availabililty and add them.

Package for load, manipulate, and save GPS data in GPX format (a light-weight XML data format for the interchange of GPS data - waypoints, routes, and tracks).

Libphonenumber Platform Interface with MethodChannels and Utils classes.

Dart implementation of Googles Polyline Encoding lossy compression Algorithm.

Upgrade your class with automatic cleanup and finalization, similar to "using + IDisposable" in C# and "try-with-resource + AutoCloseable" in Java.

A package that validates credit card numbers, expiration dates, and security codes (CVV/CVC) based on the type of credit card

A common platform interface for the flutter_email_sender plugin.

Generates random sentences and paragraphs (similar to "lorem ipsum" generators).

The web implementation of libphonenumber that uses libphonenumber_platform_interface

Generated country class with country_generator using countries.

A package for creating a customizable progress bar in console easily.

A lightweight library for parsing and updating spreadsheet documents

Flutter package for Google libphonenumber, for Android and Web. Uses Flutter Federated Package for interoperability.

The power of lazy-evaluated enumerables in your hands! (A port of functional LINQ from the .NET library.)

A package for stack data structure. have the push, pop, size, length, and top functionalities.

Provides methods to encode/decode strings to/from the utf7 format as defined in rfc 2152

A calculator for humanity’s peculiar conventions of time.

This library provides the ability to query the device for installed email apps and open those apps

Parse and format times, inspired by strptime and strftime.

binary-to-text encoding schemes that represent binary data in an unicode string format, each unicode character represent 15 bits of binary data.

Base module classes with a well defined lifecycle for modular Dart applications.

This package provides an interface for cancelation tokens as well as various implementations (cancelable, timeout, composite...).

A package to format duration from ISO 8601 duration format. It can parse string in either PnYnMnDTnHnMnS or PnW format. It will return the duration in ISODuration type.

Contain "throttling" and "debouncing" async helper classes with listeners

General dev utilities for Dart projects.

Emojis for Dart! This package contain all unicode 17.0 emojis (2025)!

Loads a DynamicLibrary of opus for usage with opus_dart on flutter platforms.

Supercharged brings all the comfort features from languages like Kotlin to all Flutter developers.

A Flutter implementation of box_transform package that provides easy 2D box transform operations with advanced resizing of rect in UI.

Shared protocol implementation and utilities for generated AWS API clients.

It allows to get beautiful class to string.

0 dependency package to convert a nested Map and flatten it into a single depth Map, and recover it later. Based on Node.js `flat` package.

Dart model classes for the Model Context Protocol (MCP) — tools, resources, prompts, subscriptions and notifications. No codegen.

UnifiedPush platform interface

A pure dart implementation of advanced 2D box transformation with easy and simple API.

Multi-purpose immutable DateTime subclass. Supports multiple localizations to easily convert DateTime and Duration into human-readable format

This tool is perfect for creating console apps, offering widgets for Console elements, input handling, Help generation, argument events, and option configuration

A front matter parser that extracts YAML metadata from the start of a file or string.

A drop-in replacement for dart:ffi for all platforms including web (using wasm_ffi).

This package provides a list of Countries with their name, ISO code, Dial code, Flag and Currency

Dart (Flutter) SDK for ConfigCat. ConfigCat is a hosted feature flag service that lets you manage feature toggles across frontend, backend, mobile, desktop apps.

A small set utilities to safely convert JSON to values and back

Regular expression for matching ANSI escape codes.

Package for building SQL queries in Dart, focusing on MySQL support.

A straight forward implementation of base58check extending upon bs58 for Flutter writing in Dart.

A shared interface for common random access data.

A very fast static spatial index for 2D points based on a flat KD-tree. A port of javascript kdbush.

Commitlint lint commit messages to satisfy conventional commit format

A Flutter/Dart utility to parse an SVG path into a equivalent Path object from dart:ui library.

Get the visual width of a string - the number of columns required to display it

Flutter Color manipulation and conversion, ported from JS tinycolor2

A dart package to parse ISO Base Media File Format.

Cached lazy variables that can be marked for re-initialization and memoized functions.

Simple Dart library to deal with state names and abbreviations.

The package provides a library for reading ISO Base Media File Format (BMFF) files.

Semaphore is a lightweight data type that is used for controlling the cooperative access to a common resource inside the isolate.

A Dart package that provides extensions for checking empty or zero values

Decode EXIF data from image files (improved fork of https://github.com/bigflood/dartexif). Supports VM, JavaScript and Web Assembly.

Dart exception and error classes with generic type. Enables throwing, catching, and filtering custom exceptions based on their type argument.

Heap manual track SDK for Flutter apps on iOS, Android, and macOS.

Package singleflight provides a duplicate function call suppression mechanism.

A flutter plugin to read and set network proxy info from native.

Flutter MCP Toolkit to add Flutter-specific methods to the MCP server

Scan JPEG markers in a JPEG file.

A library for parsing and encoding IEEE-754 binary floating point numbers.

Platform-agnostic rich text document model based on Delta format and used in Fleather editor.

Extension methods for transforming objects and iterables into quoted strings and writing them to a string buffer.

An easy and quick way to check if the local app is updated with the same version in their respective stores (Play Store / Apple Store ).

A data related helper widget and tools to help you build your flutter app faster with less code.

A Flutter package to calculate someone's age in days, months, and years; in addition it can be used to find the difference between two dates.

An implementation of a type `Optional<T>` in Dart, similar to the standard one in Swift.

A minimal Service Locator with compile-time safe provider references, enabling clean dependency injection patterns.

A Dart package to handle dynamic String & Json interpolation.

An implementation of RegExp that isolates delimited blocks of text and applies the pattern to each block separately.

Dart common utils library.Contain DateUtil, EncryptUtil, JsonUtil, LogUtil, MoneyUtil, NumUtil, ObjectUtil, RegexUtil, TextUtil, TimelineUtil, TimerUtil.

A common platform interface for the zstandard plugin.

Android platform implementation of zstandard

Flutter plugin to implement Zstandard compression

Flutter版本的shiply资源sdk

macOS platform implementation of zstandard

Linux platform implementation of zstandard

Write scripts that call subprocesses with the ease of shell scripting and the power of Dart.

Windows platform implementation of zstandard

Web platform implementation of zstandard

iOS platform implementation of zstandard

A common dependency for all context_plus-related packages

Convert number into words by localeID

Pure Dart utility package for the JSON Patch standard. Can apply patch operations as well as perform a diff algorithm on JSON-like objects.

A URL-safe base64 encoding for UUIDv4 stripped of padding. Useful when embedding short random UUIDs in URLs.

A package absorbing all Flutter utility functions, including extension functions and commonly used widgets

A dart-lang implementation of the Multihash protocol of Multiformats.

Dart tools for initial client onboarding, subsequent client enrollment, and enrollment management.

Layrz API models for Dart/Flutter. This package contains the models used by the Layrz API.

A map of objects which can be sorted and filtered on both their key and value

Cross-platform scientific library for Dart. The main goal of SciDart is run where Dart can run, in other words, run on Flutter, Dart CLI, Dart web, etc.

String truncation library supporting predefined and custom truncation strategies

Library to calculate prayer times for muslims. Based on precise astronomical formula.

This package is designed to simplify the process of capturing phone numbers from users.

A Dart package that allows you to retrieve a list of running processes and check whether a specific process is running on Linux, macOS, and Windows.

UnifiedPush Storage Interface

The Didomi CMP Plugin allows companies to collect, store, and leverage user consent under GDPR, CCPA, and other data privacy regulations.

Dart library for working with Vehicle Identification Numbers (VINs) based on ISO 3779:2009 and World Manufacturer Identifiers (WMIs) based on ISO 3780:2009, enriched by NHTSA data.

Hashids is small library to generate YouTube-like ids from numbers. Use Hashids when you do not want to expose your database ids to the user.

Streaming API implementation of MessagePack binary serialization format - msgpack.

A Dart library for defining invertible functions and their compositions

Definitions of Rust-like types, Option and Result, to promote safer programming.

Process math expressions, like formulas or parts of equations, convert them to machine-readable form, and calculate them.

A package to easily format money. It supports setting a custom currency symbol and format, using some of the inbuilt ones for the main currencies or using the system one.

The windows implementation of Flutter plugin for google places sdk

A Flutter package to detect file types based on their magic number instead of MIME types. Supports Flutter on mobile, desktop, and web without native code.

Compression framework providing FFI implementations for Brotli, Lz4, Zstd (Zstandard) with ready-to-use prebuilt binaries for Win/Linux/Mac.

XPath package for HTML and XML, basic XPath syntax are supported.

Plugin to monitor and prevent fraud attempts and malicious services to interact with your app. Contribute to list of blacklisted apps to keep everyone safe.

CIE color difference algorithms in Dart. This contains the dE76, dE94 and dE00 color difference algorithms produced by the International Commission on Illumination.

A very fast link-checker. Crawls sites and checks integrity of links both in HTML and in CSS.

Executes async tasks with a configurable maximum concurrency and rate.

A simple way to check if your application is already running.

A Dart library for converting between different units of measurement for various quantities

A collection of git helper scripts for repository checks and other utilities.

A flutter package for managing different configurations and making them available everythere inside the app.

A package helps to cancel StreamSubscriptions and close Sinks.

Utilities for accessing binary data and bit manipulation in Dart.

An implementation of the Cassowary constraint solving algorithm in Dart.

A common platform interface for the platform_device_id plugin.

A Dart package to convert and format `DateTime` objects into human-readable 'time ago' strings like '20 seconds ago', 'a minute ago', or '7 hours ago'.

An extended text editing controller that supports different inline styles for custom regex patterns.

MCP integration for Genkit Dart.

A dart package offering methods for consistent versioning of dart packages..

Dart timekeeping facilities. Make it easy to get uptime, and elapsed time.

Additions and helpers to the args packages needed by various of our projects.

A domain parser based on the Public Suffix List, for identifying the root and suffix/TLD of URLs.

Dart bindings for Imaging from Pillow with jpeg and blurhash encoders

A Dart library for seamless interaction with JavaScript using `dart:js_interop`, supporting deep transformations of objects, maps, and arrays.

A package which parses ISO 8061 Duration (PnYnMnDTnHnMnS format).

Native zstd C sources and FFI bindings for the zstandard Flutter plugin.

Flutter plugin for KARTE Variables, provides a simple API to access variables. Supports on Android and iOS.

R-tree implementation to index and query two-dimensional data

jsonlogic is dart implementation of JsonLogic, which applies logic rules on JSON.

Prints progress, success, and error messages with Unicode icons for async operations.

A Dart package providing a collection of console colors to easily colorize command line outputs.

A html parser implementation with html for xpath_selector, xpath_selector is required.

The package to parse typled text content.

Parse and generate ISO 8601 duration strings.

Dart library for converting standard data types to a binary format and back

A lightweight library for encoding and decoding JSON5 with comments and trailing commas support.

A simple function allowing to capture the exeuction of print calls..

GgProcess is a wrapper around Process.run and Process.start. It allows us to mock the execution of console programs.

For adding/subtracting sets of range of numbers, e.g. [ 1-3, 7-10 ]

Memory Cache is simple, fast and global in-memory cache with CRUD features.

Create random strings that match a given regular expression.

Tokenizes a string that represents a regular expression. Dart port of ret.js

This project is a port of kotlin-stdlib for Dart/Flutter projects. It includes collections (KtList, KtMap, KtSet) with 150+ methods as well as other useful packages.

Provides a method isGitHubAction which returns true if the currenct directory is running as part of a GitHub action.

A package for implementing finite state machines in Dart.

Dart library for changing String case style to the desired convention.

Reactive storage for Dart/Flutter. RxDart Storage for Dart/Flutter.

Implementation of The Remote Framebuffer Protocol (RFC 6143, aka VNC protocol)

A Flutter Plugin to get system plugin. Use to set dart HttpClient proxy for grabing requests.

A library to convert Dart values into human-friendly representations.

Dart bindings for Tizen native APIs, powered by ffigen.

Cross-platform BSON ObjectId implementation in Dart

Discord Rich Presence for Dart/Flutter desktop applications. No Flutter dependency required.

A platform interface plugin for proximity screen lock plugins

Portable Dart package to handle data serialization/deserialization efficiently, including a dynamic BytesBuffer to read/write data.

Lightweight parser for the JSON:API (http://jsonapi.org/) structure.

Fast, complete CSV parser for Dart. Encode, decode, stream, query, and validate CSV data with automatic type inference and zero dependencies.

Multi-platform `parsec` plugin for Flutter to calculate math equations using C++ library. Supports Android, Linux, Windows, and Web (WebAssembly).

gg_json offers a bunch of JSON helpers used in various context.

Implemention of base62 fractional indexing, in dart.

A Generic Double Linked List data structure. Allows constant time inserting at elements at both ends, before and after any element and constant time element deletion.

The package allows you to work with dynamic data in a strict form.

Flutter package for rendering JSON data as an interactive hierarchical tree structure with customizable appearance and lazy rendering for improved performance.

A pure-dart library used to parse ICC profiles and create color transformations based on them

An ultimate numerical package for Dart for professional and every day use.

A minimal, zero-dependency Jinja templating engine for Dart, ported from llama.cpp. Focused on security and efficiency.

A flutter package that implements a Controller for currency text input.

Algorithmic Cognitive Complexity calculation and Data-Flow analysis library and CLI tools for Dart and Flutter.

A library for parsing CLI input and structuring CLI commands

Tokenization and syntax highlighting support for various programming languages and data formats.

A 2D Bézier curve math library. Based heavily on the work of @TheRealPomax <pomax.github.io/bezierjs>. Live examples can be found at <www.dartographer.com/bezier>.

Common utilities to use JavaScript interoperability with Dart

Flutter plugin for works with colors schemes like a hex, hsl, xyz and cielab

A new version for a really simple Flutter plugin to add events to each platform's default calendar.

Dart browser detector library. Detects popular browsers, engines and platforms by analyzing the user agent string. Safe to use with Flutter Native.

Class definitions for pseudo-lists that simplify working with structures commonly encountered in combinatorics such as permutations, combinations and subsets.

Package for doing SQL with some type safety.

wcwidth for dart

A drop-in replacement for Dart's DateTime class with const constructors.

A Dart package for FSRS, which implements the Free Spaced Repetition Scheduler algorithm. This package assists developers in incorporating FSRS into their flashcard applications.

Flutter plugin for getting Android directories. (Downloads, Movies, Pictures...)

Emojis for Flutter & Dart (Unicode 17.0) + one, yet powerful emojis String extension

Statistics package for easy and efficient data manipulation with built-in Bayesian Network (Bayes Net), many mathematical functions and tools.

Write and run automated code modifications on a codebase. Primarily geared towards updating and refactoring Dart code, but can modify any files.

A Dart package that enhances the user experience by displaying static tabular data in terminal.

Basic Flutter/Dart classes for ESC/POS printing. Ticket class generates ESC/POS commands that can be sent to a thermal printer.

A secure and privacy-focused keyboard solution for Flutter, preventing input data leaks and ensuring safer text entry.

Simple and light units conversion package for all your needs.

Low-level tools for working with JSON without creating intermediate objects.

A fast data structure to match HTTP URL routes. Also handles regular expression (regexp) and glob path segments.

Dartlin is a helper library that provides readable methods with which you can write cleaner looking code.

Jaguar stuff common to both server and client. Uses neither dart:io nor dart:html

Using this Package developer can check whether the user provided Email address Domain name is valid or fake

A pure dart package of String validators and sanitizers. Inspired by validator.js.

Adds extension method to get the week number from a date

Strip markdown from markdown formatted string.

The clipper2 library performs intersection, union, difference and xor boolean operations on both simple and complex polygons. It also performs polygon offsetting.

A library for reading and writing Garmin FIT files. The Flexible and Interoperable Data Transfer (FIT) protocol is a standard for storing fitness activities, courses, and workouts.

A simple date model for Dart with no notion of time. Useful for applications that rely on date-only events such as birthdays, anniversaries, and date ranges.

Flutter three_js_math package converted from threejs and three_dart package to be used with three_js.

A Flutter plugin to help implementing custom eco-friendly mode in your mobile app.

A simple library for parsing strings into callable function-trees.

Get holidays in Japan. This library uses holiday_jp as Japanese holiday dataset.

Core package for A2UI protocol.

Facilitates working with physical quantities such as angles, lengths, masses, temperatures and many others. Supports uncertainty and arbitrary precision.

A lightweight package for gzip compression.

A package for parsing String into DateTime in any format. Easy way to parse a date in any format and in any language, while always respecting ISO and RFC formats.

A pure dart package with collection of Nepali Utilities like Date converter, Date formatter, DateTime, Nepali Numbers, Nepali Unicode, Nepali Moments and many more.

Dart implementation of a mustache subset for simple String templates with filters.

iCalendar library to parse, generate and respond to iCal / ics invites. Fully compliant with RFC 5545 (iCalendar) and RFC 5546 (iTIP).

Singleton make singleton implementation less hassle, and also make it more friendly to tests.

A set of utilities for provider package.

This package provides a Dart wrapper for WebAssembly JavaScript API

A Dart implementation of the Consistent Overhead Byte Stuffing (COBS) algorithm.

printx will allow to print object in colorize

Dart library for displaying ascii tables.

Pure-Dart Nostr protocol library. Events, signing, NIP-44 encryption, gift wrap, and 35+ NIPs. Transport-agnostic, Flutter Web compatible.

A flutter package to convert gbk to utf-8. Fork of https://github.com/best-flutter/gbk2utf8 which seems to be abandoned.

Mustache template library

a fast gbk codec, support GBK encoding and decoding with stream api.

A collection of extension methods for nums, ints, and doubles; and iterables of nums, ints, and doubles.

Country code plus is a helper package that provides country details given a particular localization, such as dial codes, ISO 3166 codes (alpha-2, alpha-3) and country names.

A Dart package that removes Markdown formatting from text, converting it to plain text. Port of the popular Node.js remove-markdown package. Supports headers, emphasis, links, images, code blocks, lists, blockquotes, and more.

Convert numbers to words in 12 languages with currency & ordinal support. Easy-to-use extension methods for Flutter/Dart apps.

Helps you remove accents and diacritics from strings. It comes with a built-in Crawler feature.

A lightweight Dart package which provides the class Week (based on the ISO 8601 format).

This dart package ensure your pack of async tasks execute in order, one after the other.

Provide a simple dart cache library usable on web, flutter and server side

Functional batteries for Dart. Implementation of Either, Optional etc.

Finds and removes unused gen-l10n translation keys from ARB files using resolved static analysis.

A simple PID controller. Ported from https://github.com/m-lundberg/simple-pid.

Chalk helps to style your terminal strings

A tool to analyze the public API of a package, create a model of it and diff it against another version to check semver.

It is a package to generate random text easily, quickly and dynamically.

Flutter plugin to verify the integrity of the app and detect if it has been tampered at run time.

This is a plugin that lets you get the basic information from your application's client. It's easy to use and supports different platforms (Android, iOS, and Web).

Replaces characters in strings that are illegal/unsafe for filenames.