Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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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.
mocha
The classic, battle-tested JavaScript test framework for Node.js and the browser, built around flexible async testing and pluggable reporters.
svgo
A Node.js library and command-line tool that optimizes SVG files by removing redundant markup through a configurable plugin pipeline.
nest-cli
Scaffolds, builds, and serves NestJS applications through schematics-driven code generation and pluggable compiler backends.
js-beautify
Reformats and re-indents JavaScript, HTML, and CSS into clean, readable code
jest-junit
A Jest reporter that converts test results into JUnit-compatible XML for CI dashboards and test-analytics tools.
verdaccio
A lightweight, zero-config-required private npm registry with built-in caching and proxying of public registries.
npm
The default command-line package manager for Node.js and the JavaScript ecosystem
moon
A Rust-based build system and monorepo orchestrator that manages toolchains, tasks, caching, and CI pipelines across the JavaScript, TypeScript, and polyglot ecosystem.
jsbeautifier
The official Python port of js-beautify for beautifying, unpacking, and deobfuscating JavaScript
memlab
Meta's end-to-end framework for finding JavaScript memory leaks and analyzing heap snapshots
CMake.js
A CMake-based build tool for compiling Node.js native C/C++ addons
rails-erb-loader
A webpack loader that compiles embedded Ruby (.erb) templates into JavaScript for Rails projects.
@elastic/opentelemetry-node
Elastic's zero-code OpenTelemetry distribution for Node.js, giving production apps tracing, metrics, and logs with a single --import flag.
Repomix
Packs an entire repository into a single AI-friendly file, complete with token counts, secret scanning, and an MCP server for direct AI assistant access.
