Hazel

The open source Slack alternative built for developers. Real-time messaging, GitHub integration, and AI-powered collaboration. Free for open source projects.

Hazel is an open source team chat platform built as a Slack alternative for developer teams. It offers channels and direct messages with real-time delivery, presence and typing indicators, a ⌘K command palette for jumping between channels and people, and a shared view of images, videos and documents. Native GitHub and Linear integrations bring issues and pull requests into conversations, and custom bots and webhooks handle automation. Messages, threads and reactions sync between Hazel, Slack and Discord. Hazel is in public beta, runs on web and desktop, and is free for everyone during the beta, with paid plans coming.