Best open-source JavaScript projects

A local-first desktop writing assistant that proofreads, rewrites, and formats drafts on your own machine without an account.

A Claude Code plugin with self-correcting memory, persistent FTS5 research wikis, and skills, commands and hooks for AI-assisted coding workflows.

Browser extension for reverse image search that lets you find where an image appears online across more than 30 search engines.

Open-source skill memory layer that turns agent learnings into editable Markdown skill files shared across agents and LLMs.

A modular orchestration system of plugins, agents and skills that automates task selection, code review, PR shipping and docs sync for AI coding agents.

A free, community-written guide to Claude Code in three levels, from first session to unattended multi-agent runs, with hands-on exercises.

Web app that renders every road in a chosen city as a single image, with data from OpenStreetMap.

An agent skill that generates a scroll-scrubbed 3D landing page where the camera flies through a connected, AI-generated isometric world.

An offline, zero-permission Android file viewer that opens documents, spreadsheets, slides, photos, video, audio, Markdown, code and ZIP archives in one app.

A hands-on tutorial series for building AI agents from scratch with local LLMs via node-llama-cpp, without using frameworks.

An educational JavaScript tutorial that builds retrieval-augmented generation step by step with 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.

Self-hosted intelligence dashboard that aggregates 27 open-source data feeds into one map-based view and sends alerts to Telegram or Discord.

A curated, install-checked list of community plugins for DeepSeek Harness (dsh), organized by category.

Browser extension that automatically answers cookie consent banners using your saved privacy preferences, covering 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 text to remove common AI writing patterns, with detect-only, edit-in-place and voice-profile modes.

Turns a photo of your handwriting into an installable TTF/WOFF/WOFF2 font, running locally with a Node CLI and a Claude Code skill.

Browser-based previs studio for blocking scenes, posing characters, and cutting camera moves, then exporting 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.