Gitter

Gitter provides a chat and networking service aimed at developers and GitHub communities, allowing participants to manage, grow, and connect through messaging, content sharing, and discovery. Users sign in with GitHub, GitLab, or Twitter and can exchange messages that support Markdown and LaTeX formatting, with optional end‑to‑end encryption for private conversations.

The platform is built on the Matrix open network, enabling access via the web or any Matrix‑compatible client such as Element on desktop, Android, and iOS. By connecting to the gitter.im homeserver, users can interact with the service through their preferred client while retaining the underlying JSON‑based data structure for customization.

Gitter is positioned as a stable, free‑tier communication tool that has been adopted by various open‑source projects and communities, who cite its simplicity, reliability, and ability to foster collaborative environments as key benefits.