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1time vs Hemmelig: catalog facts
1time	Hemmelig
Free Free to use and open source under the MIT licence.	Free The hosted service at hemmelig.app can be used free of charge; the code is under the…
Web, Self-hosted, Browser extension, Command line	Web
Encryption happens in the browser before upload Optional passphrase and choice of view count	Client-side encryption of shared secrets Messages self-destruct after being read
Trusting a hosted instance means trusting its served code Small project with few contributors	Source-available O'Saasy licence, not OSI open source Little documentation of features was available in the research
Downloadable app, Web application, Self-hosted, Browser extension	Web application
Open source	Closed source
License: MIT	License: O'Saasy
No account needed	Not stated if an account is 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

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