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Rinkkalker
Free

Free and open source, licensed under MPL-2.0 and GPL-3.0.

 Free

Free and open source under the MIT licence.

Windows, macOS, Linux, Web, Command line Windows, macOS, Linux, Android, Web, Command line
  • Tracks units through whole calculations
  • Dimensional analysis catches mismatched quantities
  • Natural math syntax with user-defined functions and variables
  • Handles complex numbers, vectors and matrices
  • Repository is in the middle of moving to Codeberg
  • No prebuilt releases listed on GitHub
  • Derivatives and integrals are numerical estimates
  • Higher-order derivatives can be inaccurate
Downloadable app, Web application Downloadable app, Web application
Open source Open source
License: MPL-2.0 and GPL-3.0 License: MIT
No account needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked October 2, 2026

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