Bytedesk vs Mattermost

Comparing two open source alternatives to Slack. Use the comparison below to decide which one fits your needs.

Bytedesk

AGPL-3.0

Open source AI-powered omnichannel customer service platform that combines live chat, ticketing, and team collaboration as an alternative to Slack, Zendesk, Intercom, and HubSpot.

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Mattermost

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

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Side-by-side comparison

	Bytedesk	Mattermost
License	AGPL-3.0	—
Self-hostable	Yes	No
GitHub Stars	505	39,306
Forks	141	9,043
Open Issues	—	1,087
Last Commit	Oct 7, 2026	Oct 10, 2026
First Released	Oct 12, 2023	Jun 15, 2015
Categories	Team Chat & Messaging Tools Customer Communication Platforms	Team Chat & Messaging Tools
Tags	—	—

GitHub stars over time

Bytedesk505

Mattermost

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