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Sharkey vs GoToSocial: catalog facts
Sharkey	GoToSocial
Free Free to self-host.	Free Free to self-host.
Web, Self-hosted	Self-hosted
Tracks upstream Misskey while adding features Federates with Mastodon, Akkoma, Pixelfed and more	Lightweight server written in Go Federates with other ActivityPub software
Hosting an instance requires server administration Smaller project with a small maintainer team	Fewer features than Mastodon by design Not intended for very large follower counts
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.