Compare software

1time vs sup3rS3cretMes5age: catalog facts
1time	sup3rS3cretMes5age
Free Free to use and open source under the MIT licence.	Free Free and open source under the MIT licence.
Web, Self-hosted, Browser extension, Command line	Self-hosted, Command line
Encryption happens in the browser before upload Optional passphrase and choice of view count	Messages are deleted after one read Configurable expiry up to 7 days
Trusting a hosted instance means trusting its served code Small project with few contributors	Requires running a HashiCorp Vault instance No hosted public instance listed
Downloadable app, Web application, Self-hosted, Browser extension	Self-hosted
Open source	Open source
License: MIT	License: MIT
No account 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

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