ClapCreate your command-line parser, with all of the bells and whistles, declaratively or procedurally.
CobraA Commander for modern Go CLI interactions
PicocliPicocli 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.
dimcliC++ Command Line Parser Toolkit
args-parserargs-parser is a small C++ header-only library for parsing command line arguments.
cargo-esrExtended Search & Ranking tool for crates.
audible-cliA command line interface for audible package. With the cli you can download your Audible books, cover, chapter files.
habitipyCommand-line interface to Habitica
git-globalKeep track of all your git repositories.