Argument Parser

clap-rsRust

A full-featured, fast command-line argument parser for Rust applications.

yargsJavaScript

A Node.js library for parsing command-line arguments and building interactive CLI tools with a pirate-themed twist.

argparseC++

A single-header argument parsing library for modern C++17 applications.

cacTypeScript

A lightweight, dependency-free JavaScript library for building command-line applications with TypeScript support.

go-flagsGo

A Go library for parsing command line arguments with extensive features and reflection-based struct tagging.

arghRust

A Rust derive-based argument parser optimized for code size and Fuchsia command-line tool conformance.

argsC++

A simple, flexible, header-only C++11 argument parsing library inspired by Python's argparse.

Argh!C++

A minimalist, frustration-free, single-header C++ library for command-line argument parsing.

clippC++

A single-header C++11/14/17 library for expressive command line argument parsing with documentation generation.

cliffyTypeScript

A TypeScript-first, runtime-agnostic toolkit for building complex command-line interfaces with Deno, Node, and Bun.

CommandoPHP

An elegant PHP library for building command-line interfaces with clean syntax and automatic help generation.

docopt.rsRust

A Rust command line argument parser that uses a documentation string to define the interface.

argparseGo

A Go library providing a Python argparse-like command-line argument parser with better usability than the standard flag package.

CommandDotNetC#

A modern .NET framework for building feature-rich command-line interface (CLI) applications with minimal boilerplate.

GetOptPHP

A PHP library for command-line argument processing with support for short/long options, operands, validation, and help generation.

poplC++

A header-only C++11 program options parser library that supports GNU getopt-style command-line argument parsing.

optparseShell

A minimal BASH wrapper for getopts that simplifies command-line argument parsing with one-line definitions.

EntryPointC#

A composable CLI argument parser for .NET that parses arguments into declarative POCOs using attributes.