Compare software

Tumblr vs Sharkey: catalog facts
Tumblr	Sharkey
Free Free to join and post.	Free Free to self-host.
Web	Web, Self-hosted
Reblogging makes sharing and discovery easy Mix of text, image and video posts	Tracks upstream Misskey while adding features Federates with Mastodon, Akkoma, Pixelfed and more
Centralised, proprietary platform owned by a single company	Hosting an instance requires server administration Smaller project with a small maintainer team
Web application	Self-hosted
Closed 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 October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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