Open Source Developer Tools Apps

Open-source coding agent for VS Code, JetBrains, and CLI with support for 30+ LLM providers.

Turn any GitHub repository into an interactive architecture diagram in seconds

A VS Code extension that reads your local AI coding session logs and turns them into actionable insights — anti-pattern detection across 45 rules, output tracking by model and harness, and skill discovery, with no data leaving your machine.

A Linear-inspired project management interface built with Next.js and shadcn/ui — issues, cycles, projects, teams, and a mocked AI agent chat, running entirely on client-side mock data as a self-hostable front-end template.

SOTA open-source dual-autoregressive text-to-speech model with rapid voice cloning, inline emotion tags, and real-time streaming inference across 80+ languages.

A modern web UI for nginx that eliminates config file editing with visual virtual hosts, SSL automation, Docker integrations, and real-time traffic analytics.

An MCP server giving AI agents real, undetectable browser automation — built on nodriver and Chrome DevTools Protocol to navigate sites protected by Cloudflare and other anti-bot systems for automation and testing workflows.

Run a full Linux virtual machine entirely in your browser using WebAssembly — no server required.

Self-hostable platform for running autonomous coding agents in isolated, credentialless sandboxes with brokered credentials, reusable snapshots, and event-driven triggers.

Opslane's /verify plugin turns a pasted PM ticket into a browser-driven acceptance-criteria check inside Claude Code, screenshotting and video-recording every pass or fail before you push.

A complete, embeddable search engine and RAG pipeline running in browsers, servers, and edge networks with full-text, vector, and hybrid search in under 2KB.

Instantly ready browser-based IDE that runs full npm dependency resolution and transpilation entirely client-side, with no server needed.

A stealth Chromium engine that corrects the browser fingerprint inside the C++ engine itself, so scrapers and browser agents stop getting blocked, with a 29-tool MCP server for AI agents.

Open-source full-stack monitoring that unifies session replay, error tracking, logging, and distributed tracing so you can stop context-switching between tools.

Open-source HTTP interceptor and API mocker trusted by 300,000+ developers — intercept, modify, and mock HTTP traffic from browser extensions or desktop without complex proxy setup.