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Sharkey vs Mitra: catalog facts
Sharkey	Mitra
Free Free to self-host.	Free Free to download and run on your own server.
Web, Self-hosted	Web, Self-hosted
Tracks upstream Misskey while adding features Federates with Mastodon, Akkoma, Pixelfed and more	Federates with the wider fediverse via ActivityPub Written in Rust with frequent releases
Hosting an instance requires server administration Smaller project with a small maintainer team	You need to host and maintain the server yourself Smaller community than larger fediverse servers
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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