Best open-source JavaScript projects

An agent skill that audits and rewrites prose to remove common AI writing patterns, with detect-only and edit-in-place modes.

A Node CLI and Claude Code skill that turns a photo of your handwriting into an installable TTF, WOFF or WOFF2 font.

An agent skill that guides AI coding agents through creative 3D visualization, turning an idea into a Three.js or Blender scene with recipes, kits and frame capture.

A coding-agent skill that runs multi-phase security audits with isolated agents, independent verification, and machine-readable findings.

Command-line tool and library for editing CapCut / JianYing draft projects as local JSON, with no API or server needed.

Open source AI Employees: eight scheduled business-role kits with 60 routines that run on your own machine through an AI agent like Claude Code.

Turns a written script into a narrated explainer video or product demo, with a local voice, word timing and canvas rendering, driven by a coding agent.

Exposes Codex's computer-use runtime to any agent harness on macOS and Linux, without Codex authentication.

A web and Tampermonkey userscript hub that turns an arXiv paper ID into one-click links to reading, translation, search, and discussion tools.

A Claude Code skill that turns a prompt into a short procedural canvas animation, rendered to MP4 with a headless browser and ffmpeg.

A free, local, distraction-free word processor for novelists that saves manuscripts as plain files and formats them like books as you write.

An agent skill and zero-dependency linter that makes coding agents draw hand-placed SVG diagrams in one consistent house style.

A personal context store that gives AI coding agents like Codex, Claude Code and OpenCode persistent project knowledge via a CLI, MCP server and desktop app.

An agent skill that makes AI coding agents build designed, award-style websites from a one-line brief, plus a companion /jury skill that scores sites.

A WebGL reimplementation of the classic Milkdrop music visualizer that renders Milkdrop presets in the browser using the Web Audio API.

A long-running list of ReactJS interview questions with answers, covering core React, Router, Redux, testing and React Native.

A guide applying Robert C. Martin's Clean Code principles to JavaScript, with bad and good code examples for naming, functions, classes and SOLID.

A standalone JavaScript library for game AI, covering steering, navigation meshes, perception, fuzzy logic and state-driven agents.

A graphical desktop GUI for scrcpy that mirrors and controls Android devices on Windows, macOS and Linux.

A browser-based image compressor for JPG, PNG and WebP that works fully offline, so images never leave your device.