WHAT IS IT?
Rocket.Chat is an open source team communications platform written in TypeScript, a serious alternative to Slack or Microsoft Teams. It covers real-time messaging, audio/video calls, file sharing and collaboration, with a strong focus on data sovereignty through self-hosting.
WHY IS IT INTERESTING?
- Self-hosted or cloud: deploy on your own infrastructure (Docker, Kubernetes, snap) or use the managed cloud offering. Air-gapped deployments are supported for highly sensitive environments.
- End-to-end encryption: optional E2EE per channel, plus enterprise-grade identity management and SSO (SAML, OAuth, LDAP).
- Matrix federation: Rocket.Chat users can chat across federated Matrix servers, breaking the silos between platforms.
- Apps-Engine and marketplace: official TypeScript SDK to extend the platform with custom apps, plus a marketplace packed with ready-to-use integrations (Jira, GitHub, Zapier, etc.).
- Omnichannel: aggregate WhatsApp, Telegram, SMS, email and Facebook Messenger conversations into a single inbox for customer support.
- MIT license: full source code, freely modifiable and redistributable, unlike many crippled "open core" alternatives.
USE CASES
- Replace Slack or Teams in organizations that need full control over their own data.
- Internal communications platform for governments, defense, healthcare, or any regulated industry with strict compliance requirements.
- Unified multi-channel customer support tool with automated routing and chatbots.
- Open source communities or projects looking for a self-hostable alternative to Discord.