Open Source Team Chat & Messaging Tools using Postgres

A curated collection of the best open source platforms for real-time team messaging and chat. using Postgres.

Mattermost

Secure collaboration platform for mission-critical work

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38,310
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8,802
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10 hours ago

Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.

Open Source Alternative to:

Microsoft Teams

Fluxer

Open source messaging with privacy and community focus

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9,500
Forks
621
Last commit
9 hours ago

Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.

Open Source Alternative to:

Discord

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