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libsignal

v7.0.1 · released 20 days ago · AGPL-3.0 License

First published 7 months ago.

Dart wrapper for libsignal. Signal Protocol implementation for end-to-end encryption, sealed sender, group messaging, and secure cryptographic operations.

View on pub.dev View source
#140 in Cryptography #5655 overall androidioswindowslinuxmacosweb
Downloads / day
44
as of 2026-08-23
GitHub stars
7
★ refreshed weekly
Likes
4
on pub.dev
Pub points
150 / 160
2026-07-24 2026-08-23

Repository health

Last commit
19 days ago
Commit activity
Open issues
0
Open PRs
1
Contributors
2 (top contributor 99%)
CI
GitHub Actions
License (repo)

Last refreshed 16 days ago.

License explained · AGPL-3.0

GNU Affero General Public License v3.0

Strongest copyleft. Like GPL, but ALSO triggers when you offer the software as a network service (SaaS). Avoid for most commercial apps.

Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license.

You can

  • Commercial use
  • Distribution
  • Modification
  • Patent use
  • Private use

You must

  • Disclose source
  • Include the license and copyright notice
  • Network use counts as distribution
  • Larger work must use the same license
  • State significant changes

The license does not

  • No liability
  • No warranty

Plain-English summary, not legal advice. Full text on SPDX or choosealicense.com. Summaries adapted from choosealicense.com (a GitHub project, MIT-licensed).

Commit activity, past 52 weeks

libsignal

336 commits in the past year
Stable
40 20 0 52w ago36w ago18w agothis week
Weekly average
6 commits
Busiest week
36 commits, 25 weeks ago
Active weeks
30 of 52 (58%)
Longest quiet stretch
19 weeks with no commits

Weekly commits to the default branch on GitHub. Source: GET /stats/participation. Refreshed weekly. Excludes commits to other branches.

How libsignal compares in Cryptography

Top of the Cryptography leaderboard, with libsignal highlighted.

Rank Package Downloads / day Stars Likes
#1
crypto
🇺🇸 dart.dev
370.2K ★ 71 1.9K
#2
flutter_secure_storage
🇸🇬 steenbakker.dev
121.6K ★ 1.3K 4.5K
#3
pointycastle
🇦🇺 bouncycastle.org
104.7K ★ 281 411
#4
asn1lib
 50.5K ★ 31 27
#140
libsignal
 44 ★ 7 4