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Misskey vs Pleroma: catalog facts
Misskey	Pleroma
Free Free and open source under the AGPL. Hosting is separate.	Free Free and open source under the AGPL. Hosting is separate.
Web, Self-hosted	Web, Self-hosted
Custom reactions, quotes and a built-in file drive that Mastodon lacks Deep per-instance theming and customisation	Runs comfortably on hardware far smaller than Mastodon needs Mastodon-compatible API, so existing apps work
Heavier to run than other fediverse servers Most documentation and community support is in Japanese	Smaller contributor base and slower release cadence Moderation tooling is less developed than Mastodon's
Self-hosted, Web application	Self-hosted, Web application
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0
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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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