Numby
A natural language calculator for your terminal and macOS
Open SourceGitHubApple
Numby
A natural language calculator for your terminal and macOS
Open Source
GitHub
Apple
Featured onNovember 21st, 2025
Write calculations naturally. Store variables, keep history. Free CLI/TUI with 40+ units, 300+ currencies, offline support, 9 languages. Native macOS app available ($5.99).
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Product of the Day19th
Comment highlights
Interesting tool @wiedymi . As a user, can Ghostty handle unit conversions and variables in a single natural-language command?
I wanted a simple natural language calculator for my terminal (Ghostty) without paying for existing solutions. So I built one and made it free.
The macOS version costs $5.99 as a symbolic thank-you if you find it useful and want to support the project.