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Password CalculatorLessPass
Free

Free and open source under the zlib license.

 Free

Free to use.

Windows, macOS, Linux, Android Android, Web, Browser extension
  • Derives separate passwords from one secret and an alias
  • Available for desktop and Android
  • No password database to store, sync or leak
  • Passwords can be regenerated wherever you use it
  • Requires remembering and protecting the single secret used to derive passwords
  • Changing a password means changing the inputs used to derive it
  • Cannot store existing passwords or other secrets
Downloadable app Web application, Browser extension
Open source Open source
License: Zlib License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked September 23, 2026

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