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PsiTransfer vs Wormhole: catalog facts
PsiTransfer	Wormhole
Free Free and open source to host yourself.	Free Free to use in the browser; the page does not mention paid plans.
Web, Self-hosted	Web
No accounts or logins Resumable uploads and expiring links	End-to-end encrypted file sharing Links expire automatically
Requires your own server to run Deliberately simple, with no user management	Transfers are capped at 10 GB Depends on a hosted service
Self-hosted	Web application
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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