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Hemmelig vs sup3rS3cretMes5age: catalog facts
Hemmelig	sup3rS3cretMes5age
Free The hosted service at hemmelig.app can be used free of charge; the code is under the…	Free Free and open source under the MIT licence.
Web	Self-hosted, Command line
Client-side encryption of shared secrets Messages self-destruct after being read	Messages are deleted after one read Configurable expiry up to 7 days
Source-available O'Saasy licence, not OSI open source Little documentation of features was available in the research	Requires running a HashiCorp Vault instance No hosted public instance listed
Web application	Self-hosted
Closed source	Open source
License: O'Saasy	License: MIT
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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