apple / swift-argument-parser

Straightforward, type-safe argument parsing for Swift

clap-rs / clap

A full featured, fast Command Line Argument Parser for Rust

BrianPugh / cyclopts

Intuitive, easy CLIs based on python type hints.

p-ranav / argparse

Argument Parser for Modern C++

Taywee / args

A header-only C++ argument parser library. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API).