Hazel

Now in Public Beta

The Open Source Slack Alternative Your Team Will Actually Love

Open-source, lightning-fast, and designed for modern collaboration. Hazel brings your team's conversations, tools, and workflows into one beautiful interface.

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Real-Time Messaging - Never miss a beat AI First GitHub Integration - Your workflow, connected Local-First Open Source - Full transparency Enterprise Ready - Scale with confidence Lightweight - Fast and responsive Rich Collaboration Fair Pricing Secure Messaging Scalable for any Team
Real-Time Messaging - Never miss a beat AI First GitHub Integration - Your workflow, connected Local-First Open Source - Full transparency Enterprise Ready - Scale with confidence Lightweight - Fast and responsive Rich Collaboration Fair Pricing Secure Messaging Scalable for any Team
Real-Time Messaging - Never miss a beat AI First GitHub Integration - Your workflow, connected Local-First Open Source - Full transparency Enterprise Ready - Scale with confidence Lightweight - Fast and responsive Rich Collaboration Fair Pricing Secure Messaging Scalable for any Team
Real-Time Messaging - Never miss a beat AI First GitHub Integration - Your workflow, connected Local-First Open Source - Full transparency Enterprise Ready - Scale with confidence Lightweight - Fast and responsive Rich Collaboration Fair Pricing Secure Messaging Scalable for any Team
Hazel open source team chat platform - real-time messaging interface with channels and direct messages

Integrated with the best tools

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Built for Modern Teams

Everything you need to collaborate effectively, all in one place.

What did the team decide about the real-time sync approach last week?

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Real-Time Chat with AI

Instant messaging with built-in AI agents. Get answers, automate tasks, and keep conversations flowing seamlessly.

Powerful Integrations

Connect the tools you already use. GitHub, Linear, Railway, and more—all in one place.

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Scale With Your Needs

From small teams to large organizations. Hazel grows with you—handle more channels, more messages, more users.

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Work Across Time Zones

Built for remote teams. See who's online, coordinate across time zones, and never miss an important message.

Core Features

Everything you need to collaborate effectively.

Keep Every Conversation Connected

Seamlessly sync messages, threads, and reactions between Discord, Slack, and Hazel.

Message Sync

Every message syncs instantly. Edit in Discord, see it update in Hazel. Reply from Slack, your team sees it everywhere.

Thread Continuity

Threaded conversations stay connected. Start a thread in Slack, continue it in Hazel with full context preserved.

Reaction Sync

Reactions travel across platforms. React with an emoji in Discord, it appears in Hazel and Slack instantly.

Built for Secure Growth

Where advanced security meets seamless scalability—designed to protect your data and empower your growth.

Security and Privacy

Hazel is built with security and privacy in mind. Your data is protected with enterprise-grade authentication and fine-grained permissions.

Scalable for any Team

Grow with your team. Collaborate across hundreds of channels and stay in sync with all your team members.

"Hazel has been an amazing upgrade for our workflow, allowing us to escape the clutches of Slack and easily integrate our network of coaches, partners and AI agents into it, which made it easy to scale our business without the cost burdens that come with it."

Frequently Asked Questions

Answers to common questions about Hazel and its features. If you have any other questions, please don't hesitate to contact us.

What is Hazel?
Hazel is an open source team chat platform built for developers. It combines real-time messaging with deep integrations for GitHub, Linear, and deployment tools—so your team can collaborate without leaving the conversation.
How is Hazel different from Slack?
Hazel is purpose-built for developer teams with native GitHub and Linear integrations, inline code syntax highlighting, a keyboard-first interface, and a desktop app with auto-updates. It's also open source and free for small teams.
What integrations does Hazel support?
Hazel integrates with GitHub (PRs, issues, deployments), Linear (issues with rich previews), Railway (deployment notifications), and OpenStatus (incident alerts). You can also connect custom services via webhooks.
Does Hazel have a desktop app?
Yes! Hazel has native desktop apps for macOS and Windows with automatic updates, plus a Progressive Web App (PWA) that works offline. You can also use Hazel in any browser.
Is Hazel free for small teams?
Yes, Hazel is free for open source projects and small teams. Paid plans are available for larger teams that need advanced features and priority support.
Can I search messages in Hazel?
Yes! Hazel has full-text message search with filters for keywords, users, and channels. You can quickly find any conversation across your entire workspace.

Start building with Hazel today.

Get Started for Free Open-source, lightning-fast, and designed for modern collaboration.