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Spacebar vs Campfire: catalog facts
Spacebar	Campfire
Free Free and open source, funded through Open Collective donations.	Free No subscription; the code is published on GitHub.
Self-hosted	Web, Self-hosted
Aims for compatibility with the Discord client and API Runs on a server you control	Installs on your own server with one command Familiar layout for people coming from Slack or Teams
Still a reimplementation in progress, so compatibility may be incomplete Requires running and maintaining your own server	You have to run and maintain the server yourself Covers chat basics rather than a large integration ecosystem
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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