CLI11 is a command line parser for C++11 and beyond that provides a rich feature set with a simple and intuitive interface.

Node.js CLI options parser

Parse CLI options in Fish

A web application built in React that allows you to enter a git command and get a simple explanation of what it does.

Generic PHP command line flags parse library.

Command line parsing library using Free Applicative

Pragmatic command line parsing and configuration for Scala apps

A small (400 sloc) cross-platform single-header c++11 CLI parser library

Another extensible and powerful go configuration manager, which is inspired by oslo.config, github.com/micro/go-micro/config and viper.

simple Golang command-line parser, if you don't need some fancy features, just guá it.

Structured Stream Processing and Presentation

Isop is the swedish name for hyssop. Like any spice it is intended to give flavor to the development of command line apps.

JavaScript's answer to getopts. Simple, obvious, and direct.

CronReadable: a Go package for enhancing cron expression readability. Converts complex cron schedules,Enhance readability, streamline code, and improve communication of scheduled tasks.

Command line argument parser in pure Nix. Supports sub-commands, typed positional arguments, value coercion and resolution via Nix Modules.

Just Another Command Line Arguments Parser for Scala

A simple module to parse CLI arguments, flags and options for Deno.

meow inspired parseArgs() based CLI parser. Also contains help text helpers

A simple Command Line argument parser in F#

Cross-platform, free and open source library for parsing command-line options, arguments and subcommands. It contains the main features of popular argument parsers such as argparse, as well as many of its own.