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Campfire vs Slack: catalog facts
Campfire	Slack
Free No subscription; the code is published on GitHub.	Freemium Free plan available, with paid plans for more features.
Web, Self-hosted	Windows, macOS, Linux, Android, iOS, Web
Installs on your own server with one command Familiar layout for people coming from Slack or Teams	Channels keep team conversations organized Large range of app integrations
You have to run and maintain the server yourself Covers chat basics rather than a large integration ecosystem	Closed source hosted service Many features and AI tools sit behind paid plans
Self-hosted	Downloadable app, Web application, Hosted service
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.