Compare software

Hemmelig vs Onetime Secret: catalog facts
Hemmelig	Onetime Secret
Free The hosted service at hemmelig.app can be used free of charge; the code is under the…	Freemium Free to create secret links, with paid plans listed on the pricing page.
Web	Web, Self-hosted
Client-side encryption of shared secrets Messages self-destruct after being read	Links self-destruct after one view Optional passphrase and expiry
Source-available O'Saasy licence, not OSI open source Little documentation of features was available in the research	Only for text, not files Recipient must open the link before it expires
Web application	Web application, Self-hosted, Hosted service
Closed source	Open source
License: O'Saasy	License not stated
Not stated if an account is needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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