Yes. Rocket.Chat is released under the MIT license and can be self-hosted at no software cost.

How difficult is it to self-host Rocket.Chat?

Self-host difficulty is rated 3/5.

Open-source alternative

Rocket.Chat

The open-source alternative to Slack

MIT TypeScript Difficulty 3/5 Health 0.0/100

Rocket.Chat is an open-source communications platform with channels, omnichannel, and federation.

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Rocket.Chat is a self-hostable open-source alternative to Slack , with health score 0.0/100 under the MIT license .

Mattermost

Health 85.0

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