Mattermost
Focus: devops. Shares team chat and self-hosted with Zulip. Rated 4.4 (Zulip: 4.5).
Web App
Open-source team chat where every conversation has a topic, so threads stay readable.
Rating
4.5 / 5
Pricing
Freemium
Difficulty
Intermediate
Works on
Web, macOS, Windows
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
Zulip is open-source team chat (Apache 2.0) that organises messages into channels and topics, so you can catch up on one conversation at a time instead of scrolling a single stream. Zulip Cloud has a free plan with 10,000 messages of search history and 5 GB of file storage, and the self-hosted version is free with every feature included. Paid cloud plans start at $6.67 per user a month billed annually.
Remote and open-source teams that work asynchronously across time zones.
Small groups that just want a quick, casual chat.
See how Zulip stacks up, side by side, plus the lists it made.
Not sold on Zulip? These do a similar job, and each card says what it has in common.
Focus: devops. Shares team chat and self-hosted with Zulip. Rated 4.4 (Zulip: 4.5).
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Focus: matrix and messaging. Shares open source and self-hosted with Zulip. Rated 4.3 (Zulip: 4.5).
Focus: messaging, channels and free plan. Shares team chat and slack alternative with Zulip. Rated 4.4 (Zulip: 4.5).
Focus: voice chat, audio and github. Shares self-hosted and open source with Zulip. A desktop app, not a web app. Free (Zulip: Freemium). Rated 4.4 (Zulip: 4.5).
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