Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.

command line options parsing for Scala

easy to use, powerful & expressive command line argument parsing for modern C++ / single header / usage & doc generation

A simple to use, composable, command line parser for C++ 11 and beyond

Package for parsing command-line arguments to Julia programs.

A simple C++ header only command line argument parser

Command line parser. Declarative arguments support. Rich set of argument types (switches, enums, files, etc...). Mutually exclusive arguments validations.

A C project template with Makefile, command line options parsing, unittest using cmocka and valgrind

Real-time & historical data API for US stocks and options

Build type-safe command-line utilities in Elm!

CmdOption is a simple annotation-driven command line parser toolkit for Java 6+ applications that is configured through annotations.

Standalone wrapper of clap for shell scripts

A library to create Comfortable, Explicit, Multi-Layered and Well-Documented Specifications for all your configurations, settings and options in Elixir.

A Java configuration, shell, and general utility toolkit

A python command line tool to calculate options max pain for a given company symbol and options expiry date.

Portable and simple option parsing, powered by getopts(1p).

A cute little Bash library for blazing fast argument parsing

Commandline parsing using applicatives (optparse-applicative ported from Haskell/Scala)

A type-safe, object-oriented option parser

An advanced command line parser for bash intended to be a replacement for getopt / getopts, loosely inspired to python's optparse