Best Open-Source Developer Tools on GitHub

Curated list of design and UI resources from stock photos, web templates, CSS frameworks, UI libraries, tools and much more

A hand-picked collection of the finest of resources for the most awesome of agents, Claude Code, the undisputed champion of coding companions, from the unstoppable team at Anthropic PBC. A delectable showcase of top tier skills, ambidextrous agents, scintillating status lines, top notch developer tooling, and also we have plugins

Collection of handy online tools for developers, with great UX.

A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

Unified developer tools for JavaScript, TypeScript, and the web

The industry-leading GraphQL client for TypeScript, JavaScript, React, Vue, Angular, and more. Apollo Client delivers powerful caching, intuitive APIs, and comprehensive developer tools to accelerate your app development.

Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.

A lightweight, extendable front-end developer tool for mobile web page.

Computer Vision Annotation Tool (CVAT) is a leading platform for building high-quality visual datasets for vision AI. It offers open-source, cloud, and enterprise products, as well as labeling services, for image, video, and 3D annotation with AI-assisted labeling, quality assurance, team collaboration, analytics, and developer APIs.

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

Node.js debugger based on Blink Developer Tools

A collection of services with great free tiers for developers on a budget. Sponsored by Mockoon, the best mock API tool. https://mockoon.com