A fully-featured team and group chat application that you can easily selfhost.
↑ +16 today
Topic Catalog
Communication GitHub Repositories (2026) · Open Source Tools
Discover the best Communication open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
SPONSORED BY
11 matching projects · updated Nov 12, 2026
How we rank ↗
🛡 I2P: End-to-End encrypted and anonymous Internet
↑ +11 today
Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)
↑ +6 today
Open Source Discussions Platform for Remote Teams
↑ +1 today
The open-source, self-hosted video conferencing software. Scalable, customizable, and with a powerful AI Meeting Agent.
↑ +1 today
SPONSORED
Featured Developer Tools & Services
Penpal simplifies communication with iframes, workers, and windows by using promise-based methods on top of postMessage.
↑ +1 today
AMD RAD's multi-GPU Triton-based framework for seamless multi-GPU programming
↑ +1 today
📱 Wire for iOS (iPhone and iPad)
↑ +1 today
An IRC Client for Android
↑ +1 today
madmail is a lightweight, single-binary, PGP-only, and resilient mail server designed for instant messaging using DeltaChat.
↑ +1 today
Webapp for collaborative online retrospectives
↑ +1 today
From our network