CragCLI – a new calculator for the command line (opens in new tab)

I made CragCLI for my own fun.

I think you may like it if:

  - You are a command line user, perhaps a software developer, a data scientist or an IT savvy engineer.

  - You are a numerate person, who likes to know the numbers behind what you see.

  - You often reach for a calculator. You are comfortable driving a scientific calculator. Maybe you already use another command line calculator like bc.

CragCLI provides both a direct command and an interactive mode via a REPL.

There is an introductory write up here - https://rakujourney.wordpress.com/2026/03/10/cragcli/

numbat is my go-to for this: https://github.com/sharkdp/numbat