Best open-source JavaScript projects

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 local-first AI office workbench that turns one request into editable PPTX, DOCX, XLSX and HTML files, using your own model keys.

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.

Pipedream is a hosted integration platform for building event-driven automations that connect APIs and apps, with custom code steps in Node.js, Python, Go, or Bash.

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.

Windows remote control from your phone over local Wi-Fi: lock, shut down, restart, sleep, launch apps, and control media, paired by QR code.

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.

A privacy-first PDF toolkit that runs entirely in the browser, offering 50+ tools to edit, merge, convert and secure PDFs, and self-hostable.

A categorized, web-based directory of free OSINT tools and resources for gathering information from public sources.

A Zotero plugin for chatting with single or multiple PDFs and searching the whole library, using cloud LLMs or local models.