The
Flutter-powered AI app builder Category Utilities
Top Utilities packages by yearly commits
General-purpose helpers: extensions, formatters, validators, algorithms, data structures
Ranks repos by total commits over the past 52 weeks. Activity, not quality. A finished library may rank low. A thrashing one may rank high.
Packages need a public GitHub repo, at least 50 commits in the past 52 weeks, and at least 100 downloads a day. Monorepo siblings collapse to the highest-downloaded package.
ispectify_db first shipped 9 months ago. Ranks #4 in Utilities by commit activity, #644 by daily downloads in the same category.
| Rank | Package | Description | Commits / yr | Last commit | Downloads / day | Stars |
|---|---|---|---|---|---|---|
| #1 | 🇺🇸 dart.dev | Annotations used to express developer intentions that can't otherwise be deduced by statically analyzing source code. | 5.9K | 9d ago | 340.9K | ★ 11.2K |
| #2 | 🇺🇸 atsign.org | A library of Dart and Flutter utility classes that are used across other components of the atPlatform. | 1.7K | 10d ago | 597 | ★ 1.4K |
| #3 | 🇺🇸 flutter.dev | A Dart package for reading XDG directory configuration information on Linux. | 1.6K | 9d ago | 182.9K | ★ 5.2K |
| #4 | Passive database observability for ISpect with operation tracing, timings, slow-query logs, result projection, and redaction. | 1.2K | 13d ago | 129 | ★ 21 | |
| #5 | 🇺🇸 sellsbrothers.com | Interface definitions for dartantic_ai for use in building custom providers. | 689 | 1mo ago | 156 | ★ 91 |
| #6 | 🇯🇵 atprotodart.com | Core library for parsing IPFS-related things. This package is mainly used by https://atprotodart.com packages. | 674 | 16d ago | 127 | ★ 207 |
| #7 | 🇺🇸 xsoulspace.dev | Flutter MCP Toolkit to add Flutter-specific methods to the MCP server | 509 | 13d ago | 428 | ★ 336 |
| #8 | 🇺🇸 labs.flutter.dev | A full-featured package used to build and validate JSON schemas in Dart. | 502 | 10d ago | 2.2K | ★ 1.7K |
| #9 | 🇺🇸 dart.dev | A library that contains a Dart API for the JSON-based protocol for `hook/build.dart` and `hook/link.dart`. | 485 | 9d ago | 275.9K | ★ 265 |
| #10 | 🇵🇦 goldenm.com | Layrz API models for Dart/Flutter. This package contains the models used by the Layrz API. | 354 | 12d ago | 282 | ★ 3 |
| #11 | 🇪🇸 vyp.dev | A common platform interface for the zstandard plugin. | 252 | 3mo ago | 243 | ★ 10 |
| #12 | 🇨🇴 leancode.co | MCP server that lets AI agents (Claude, Copilot, Cursor) inspect and interact with running Flutter apps — tap, scroll, type, and screenshot. | 247 | 12d ago | 1.6K | ★ 329 |
| #13 | 🇺🇸 aws-amplify.com | Smithy client runtime for Dart with common utilities for I/O and serialization. | 229 | 9d ago | 2.9K | ★ 1.4K |
| #14 | 🇨🇭 lukas-renggli.ch | Full-featured XML for Dart — DOM parsing, SAX streaming, XPath 3 querying, and a fluent builder API. | 214 | 13d ago | 287.4K | ★ 230 |
| #15 | FlatBuffers reading and writing library for Dart. Based on original work by Konstantin Scheglov and Paul Berry of the Dart SDK team. | 209 | 17d ago | 5.9K | ★ 26.1K | |
| #16 | 🇮🇸 tsin.is | Provides data for world languages in the form of sealed classes. | 200 | 11d ago | 758 | ★ 65 |
| #17 | 🇦🇺 onepub.dev | 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. | 183 | 1mo ago | 2.5K | ★ 266 |
| #18 | 🇺🇸 tools.dart.dev | Provides a standard representation for source code locations and spans. | 181 | 10d ago | 323.9K | ★ 108 |
| #19 | 🇯🇵 eaglesakura.com | Stream generator.
| 181 | 9d ago | 752 | ★ 2 |
| #20 | halildurmus.dev | Allocation tracking and leak detection for Dart FFI code. | 180 | 13d ago | 28.2K | ★ 845 |
| #21 | A unified Flutter package which gathers multiple widgets and tools. | 168 | 9d ago | 113 | ★ 0 | |
| #22 | stduritemplate.proj.sbs | A Dart implementation of URI Templates defined in (RFC 6570). | 157 | 10d ago | 606 | ★ 51 |
| #23 | Flutter three_js_math package converted from threejs and three_dart package to be used with three_js. | 153 | 9d ago | 151 | ★ 87 | |
| #24 | 🇺🇸 jamcorder.com | A common platform interface for the flutter_blue_plus plugin. | 143 | 12d ago | 7.8K | ★ 995 |
| #25 | yom-engine.com | A Dart in-memory cache library with FIFO, LRU, MRU, LFU, TTL expiry, async-safe variants, and monitoring metrics. | 139 | 1mo ago | 151 | ★ 2 |
| #26 | 🇬🇧 tusar.dev | A query string encoding and decoding library for Dart. Ported from qs for JavaScript. | 134 | 13d ago | 4.9K | ★ 7 |
| #27 | leanflutter.dev | A simple shell commands executor. | 128 | 11d ago | 678 | ★ 1.1K |
| #28 | 🇺🇸 terminal.studio | SSH and SFTP client written in pure Dart, aiming to be feature-rich as well as easy to use. | 120 | 21d ago | 957 | ★ 258 |
| #29 | The windows implementation of Flutter plugin for google places sdk | 120 | 15d ago | 114 | ★ 3 | |
| #30 | 🇯🇵 koji-1009.com | A common platform interface for the flutter_secure_storage_x plugin | 119 | 16d ago | 154 | ★ 2 |
| #31 | 🇺🇸 ethanblake.xyz | A flexible Dart bytecode compiler and interpreter written in Dart, enabling dynamic execution and code push for AOT Dart apps. | 111 | 1mo ago | 157 | ★ 400 |
| #32 | vincentsanicolas.me | A streaming JSON parser optimized for LLM responses. Parse JSON reactively as it streams in, with path-based subscriptions and type-safe property access. | 103 | 11d ago | 929 | ★ 14 |
| #33 | 🇺🇸 sass-lang.com | A Sass implementation in Dart. | 100 | 12d ago | 2.7K | ★ 4.2K |
| #34 | 🇯🇵 codingfeline.com | Unicode 17.0 Normalization - NFC, NFD, NFKC, NFKD. This is a Dart port of [walling/unorm](https://github.com/walling/unorm). | 95 | 1mo ago | 6.1K | ★ 14 |
| #35 | 🇺🇸 tools.dart.dev | An API for defining and verifying files and directory structures. | 94 | 9d ago | 4.9K | ★ 532 |
| #36 | 🇺🇸 launchdarkly.com | Common dart libraries used by LaunchDarkly SDKs. This is an internal package not designed for general use. | 94 | 9d ago | 3.3K | ★ 20 |
| #37 | 🇺🇸 fluttercommunity.dev | Flutter plugin providing detailed information about the device (make, model, etc.), and Android or iOS version the app is running on. | 91 | 9d ago | 117.7K | ★ 1.9K |
| #38 | 🇺🇸 brickhub.dev | A Dart template generator which helps teams generate files quickly and consistently.
| 88 | 3mo ago | 12.1K | ★ 1.1K |
| #39 | 🇩🇪 sdk.usercentrics.com | The Usercentrics Apps SDK is a Consent Management Platform framework that ensures legal compliance for different legal frameworks. | 86 | 10d ago | 1K | ★ 6 |
| #40 | 🇺🇸 farend.net | Library to calculate prayer times for muslims. Based on precise astronomical formula. | 85 | 1mo ago | 115 | ★ 21 |
| #41 | flutter-it.dev | 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" | 82 | 4mo ago | 63K | ★ 1.5K |
| #42 | 🇯🇵 eaglesakura.com | 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. | 80 | 5mo ago | 762 | ★ 0 |
| #43 | A common platform interface for the speech_to_text plugin. | 77 | 1mo ago | 13.9K | ★ 469 | |
| #44 | 🇺🇸 labs.dart.dev | Time zone databases and time zone aware `DateTime`. | 76 | 13d ago | 90.2K | ★ 47 |
| #45 | 🇬🇧 invertase.io | Parse a git commit message using the Conventional Commits specification. | 74 | 11d ago | 2.4K | ★ 1.5K |
| #46 | 🇳🇱 finchdart.com | Package for building SQL queries in Dart, focusing on MySQL support. | 74 | 11d ago | 367 | ★ 7 |
| #47 | 🇺🇸 google.dev | Function for sanitizing HTML to prevent XSS by restrict elements and attributes to a safe subset of allowed values. | 73 | 10d ago | 26.3K | ★ 508 |
| #48 | Retrieve the current Dart and Flutter SDK semantic versions with easy-to-use nullable getters for streamlined version management. | 70 | 11d ago | 486 | ★ 3 | |
| #49 | 🇨🇳 mixin.dev | A flutter plugin which could read image,files from clipboard and write files to clipboard. | 68 | 14d ago | 4K | ★ 510 |
| #50 | A package to get the ip address of the current device. Uses https://api64.ipify.org to get the system IP. | 64 | 8mo ago | 795 | ★ 29 | |
| #51 | 🇩🇪 dev-cetera.com | A package inspired by functional programming, designed to enhance the structure, safety, and debuggability of mission-critical code. | 64 | 1mo ago | 148 | ★ 6 |
| #52 | 🇯🇵 karte.io | Flutter plugin for KARTE Variables, provides a simple API to access variables. Supports on Android and iOS. | 62 | 19d ago | 334 | ★ 7 |
| #53 | Generated country class with country_generator using countries. | 61 | 15d ago | 467 | ★ 4 | |
| #54 | 🇨🇦 nfet.net | 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.
| 58 | 19d ago | 23.8K | ★ 1.5K |
| #55 | 🇺🇸 google.dev | Runtime library for protocol buffers support. Use with package:protoc_plugin to generate Dart code for your '.proto' files. | 57 | 3mo ago | 61.5K | ★ 572 |
| #56 | 🇺🇸 google.dev | Library for use by client APIs generated from Discovery Documents. | 56 | 26d ago | 24.1K | ★ 418 |
| #57 | 🇺🇸 libdbm.com | Pure Dart implementations of LZ4, Snappy, GZIP, and Zstd compression algorithms with no native dependencies. | 56 | 9d ago | 312 | ★ 2 |
| #58 | medz.dev | Composable number formatting and parsing for decimals, compact values, percentages, byte sizes, currency display text, and locale-aware numerals. | 52 | 10d ago | 123 | ★ 12 |
| #59 | 🇺🇸 flutter.dev | A templating library that implements the Mustache template specification | 50 | 13d ago | 230.6K | ★ 6 |