Is there any Slack self-hosted Alternative?

1. sydent

   1 721 315 4.9 Python

   Sydent: Reference Matrix Identity Server

   

   Matrix is great! Its a chat protocol that has many front ends your users can choose from. The most popular front end is Element.

2. CodeRabbit

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   CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.

   

3. Mattermost

   2 165 31,887 10.0 TypeScript

   Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

   

   Have a look at https://mattermost.com

4. Element

   3 621 11,559 10.0 TypeScript

   A glossy Matrix collaboration client for the web.

   

   Matrix is great! Its a chat protocol that has many front ends your users can choose from. The most popular front end is Element.

5. Rocket.Chat

   4 122 42,217 10.0 TypeScript

   The communications platform that puts data protection first.

   

   Have a look at https://rocket.chat/

6. matrix-docker-ansible-deploy

   5 199 5,115 10.0 Jinja

   🐳 Matrix (An open network for secure, decentralized communication) server setup using Ansible and Docker

   

   You can use this Ansible playbook: https://github.com/spantaleev/matrix-docker-ansible-deploy Works like a charm and is super adjustable to your needs. Works for me for many month now!

7. Zulip

   6 134 22,434 10.0 Python

   Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

   

   Chrck out Zulip. Unlike Mattermost, it can he used for free on the cloud and you can also self host it. It has a unique system of topics where each message in a stream can have a topic. This really reduces a lot of clutter in streams.

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