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Enclosed vs OTS: catalog facts
Enclosed	OTS
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the Apache-2.0 licence.
Web, Self-hosted, Command line	Web, Self-hosted
Client-side encryption with a zero-knowledge server Password, expiry and burn-after-reading options	Encryption happens in the browser, so the server never sees plain text Secrets are deleted after the first read
Meant for one-off sharing, not ongoing file sync	In-memory storage loses secrets on restart Anyone who gets the link first can read the secret
Web application, Self-hosted	Self-hosted
Open source	Open source
License: Apache-2.0	License: Apache-2.0
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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