Best open-source JavaScript projects

Renders every road in a chosen city at once as a map-style visualization, using OpenStreetMap data in the browser.

An agent skill that generates a scroll-scrubbed 3D landing page where the camera flies from outside each scene into its interior, with no cuts.

Offline, zero-permission Android file viewer for PDF, Word, Excel, PowerPoint, photos, video, audio, Markdown, code and ZIP archives.

A hands-on tutorial that teaches AI agent building from scratch with local LLMs via node-llama-cpp, covering function calling, memory and ReAct.

A step-by-step educational project that builds Retrieval-Augmented Generation from scratch in JavaScript using local LLMs and no cloud APIs.

An Agent Skill that lets coding agents write and run custom Playwright browser automation scripts for tests and multi-step web tasks.

A self-hosted intelligence dashboard that aggregates 27 open-source data feeds on a 15-minute cycle and sends alerts to Telegram or Discord.

A curated, community-maintained list of plugins for DeepSeek Harness (dsh), a coding agent built on a plugin-based framework.

Browser extension that automatically answers cookie consent popups using your saved preferences, supporting 200+ consent management platforms.

A catalog of 28 portable Agent Skills that give Claude Code, Copilot, Codex and Cursor structured reasoning procedures for decisions, diagnosis and risk.

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.

Browser-based previs studio for blocking scenes, posing characters, and cutting camera moves, then sending the shots to AI video models.

A lightweight Windows teleprompter built with Rust and Tauri, with an always-on-top reading overlay, voice tracking and optional Groq-powered script generation.

A small, dependency-free JavaScript library that lets any HTML element make AJAX, WebSocket and SSE requests through attributes.

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.

An MCP server that lets Claude Code read and control your locally running TradingView Desktop charts via Chrome DevTools Protocol.