Web Development GitHub Repositories (2026) · Open Source Tools

StackPrism is a browser extension for detecting website technology stacks.

Component layer for AI agents: implementation-aware contracts for building project-native interface components.

Open source website builder and Webflow alternative. Webstudio is an advanced visual builder that connects to any headless CMS, supports all CSS properties, and can be hosted anywhere, including with us.

Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust.

Can AI agents rebuild websites through browser exploration?

The fully-stacked web framework

The Nu Html Checker (vnu)

Open-source local PHP development environment for Linux, macOS and Windows (WSL2). Automatic .test domains, per-project PHP/Node isolation, one-command TLS. Podman-native, rootless.

The AWS Amplify CLI is a toolchain for simplifying serverless web and mobile development.

A lean, modular web server for rapid full-stack development.

Stack-agnostic Claude Skills covering the full website lifecycle: brand, design, content, SEO, dev, ops, growth, and research. Build, ship, audit, optimize.

A compute toolkit for the web with the depth of Plan 9 from Bell Labs

A type-safe, component-based language for building reactive WASM web apps.

🔍 Google SEO's full docs as an AI prompt machine — drop it into your AI assistant to map every public route, audit each page against Google's rules, and fix the gaps step by step.

Enter Project FU: an unofficial foundry system for Fabula Ultima, channeling the essence of the book while delivering the immersive experience of playing a JRPG in tabletop format.

DevStart Lab - An interactive open-source platform to learn programming, explore real projects, and contribute to GitHub.