Open-source tool library

Filter open-source tools and software by use case, platform, deployment, and open-source status.

spec-kit

An open-source CLI toolkit for Spec-Driven Development that guides AI coding agents through structured specification, planning, and code generation steps.

github · Active in the last 30 days

excalidraw

An open-source virtual whiteboard for sketching hand-drawn style diagrams with real-time collaboration.

excalidraw · Active in the last 30 days

codex

OpenAI’s coding agent that runs locally, with terminal, IDE, and desktop-app entry points.

openai · Active in the last 30 days

playwright

A cross-browser automation framework for testing and AI agent control, supporting Chromium, Firefox, and WebKit.

microsoft · Active in the last 30 days

puppeteer

A JavaScript library that provides a high-level API to control Chrome or Firefox over DevTools Protocol or WebDriver BiDi.

puppeteer · Active in the last 30 days

Cline

An open-source coding agent for IDEs and terminals that can inspect projects, edit files, run commands, and gate actions through approval controls.

cline · Active in the last 30 days

docusaurus

An open-source static-site tool for documentation websites with docs, blogs, localization, and theme customization built in.

facebook · Active in the last 30 days

astro

A web framework for content-driven sites that can integrate React, Vue, Svelte, and other UI components while keeping output lightweight.

withastro · Active in the last 30 days

claude-code

An agentic coding tool for the terminal that understands codebases, handles routine development tasks, explains code, and works with Git workflows.

anthropics · Active in the last 30 days

agent-device

Mobile app automation and verification for AI coding agents, enabling live interaction and testing across iOS, Android, HarmonyOS, and more.

callstack · Active in the last 30 days

SwiftBar

An open-source macOS utility that turns scripts into custom menu bar items and supports the BitBar/xbar plugin format.

swiftbar · Active in the last 30 days

peerd

A browser-native AI agent runtime that drives tabs, executes sandboxed compute, and manages tasks directly within your browser via an extension.

NotASithLord · Active in the last 30 days

marketing-studio

An agent-driven marketing studio for Claude Code that generates product demos, logo reveals, launch videos, and social assets from a single command.

ucsandman · Active in the last 30 days

massing

Open-source, self-hosted, IFC-native AEC platform featuring in-browser BIM modeling, a general contractor portal, and development proforma tools.

ibuilder · Active in the last 30 days

Flare

A graph-first IDE for agentic coding featuring a live codebase map, integrated terminal, and MCP task collaboration.

AlgoNoRhythm · Active in the last 30 days

massCode

A local-first desktop workspace for snippets, Markdown notes, HTTP requests, calculations, drawings, and everyday developer utilities.

massCodeIO · Active in the last 30 days

atrophy

Quantify and track your coding skill decay caused by AI reliance through regular, unaided programming drills.

ashutosh-rath02

CVE Lite CLI

A local-first JavaScript/TypeScript lockfile vulnerability scanner focused on actionable remediation, with CI, SARIF, HTML reports, and offline advisory data.

OWASP · Active in the last 30 days