Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
Category1
Sort:Used by Most Apps
Commander.js
The complete, battle-tested framework for building Node.js command-line interfaces.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
Clap
The most widely used command-line argument parser for Rust, with both derive and builder APIs.
Click
A composable Python toolkit for building command line interfaces with minimal boilerplate.
rich
A Python library for rendering rich text, tables, progress bars, and syntax-highlighted code in the terminal.
Ruff
An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.
yargs
The modern, pirate-themed command-line argument parser and command framework for Node.js
tqdm
A fast, extensible progress bar for Python loops and CLI pipelines, with negligible overhead.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
minimist
A lightweight, dependency-free argument parser that turns process.argv into a clean options object.
urfave/cli
A declarative, dependency-free Go package for building fast, friendly command-line tools.
MkDocs
A fast, simple static site generator for building project documentation from Markdown with a single YAML config file.
oclif Core
The Node.js framework that powers Salesforce CLI and Heroku CLI, providing flag parsing, help generation, and a plugin system for building CLIs.
Sphinx
A documentation generator that turns reStructuredText or Markdown sources into polished HTML, PDF, EPUB, and more.
Pulumi
Infrastructure as Code in your favorite programming language, powered by a shared multi-language deployment engine.
json2csv
Convert JSON arrays into CSV strings and files with configurable fields, formatters, and streaming parsers for Node.js.
jsonschema
A compliant, dependency-light Go library for compiling and validating JSON Schema across five draft versions, with rich hierarchical errors.
IPython
A productive interactive Python shell with rich introspection, tab completion, and magic commands.
quicktype
Generate strongly-typed models and serializers from JSON, Schema, TypeScript, or GraphQL
Open Policy Agent (OPA)
Open source policy engine for unified authorization and compliance decisions across your stack.
Peggy
Parser generator for JavaScript using parsing expression grammars (PEG)
yargs-parser
The mighty, standalone option parser powering yargs
Poetry
Poetry is a dependency management and packaging tool for Python that resolves, locks, and installs project dependencies through a single pyproject.toml file.
go-shellwords
A Go library that splits shell-style command-line strings into argument slices, honoring POSIX quoting, escaping, and substitution rules.
