HTML GitHub Repositories (2026) · Open Source Tools

Reverse engineer anything with agents, from app behavior down to native binaries.

Write HTML. Render video. Built for agents.

Get your documents ready for gen AI

The open source AI video agent: turns any coding agent into a video agent, with an editor to change anything it makes.

Build cross-platform Native Progressive Web Apps for iOS, Android, and the Web ⚡️

Free and open source admin dashboard UI kit built on Bootstrap: 100+ pages, 6,000+ icons, dark mode, RTL.

PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.

:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS and Web

Fullstack app framework for web, desktop, and mobile.

DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

Coding articles to level up your development skills

The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

Lingo - Interactive platform for language learning.

VB6 Studio Web — a browser-native classic Visual Basic IDE, form designer, source runtime and controls library in HTML, CSS and JavaScript, with a debugger, WebGPU drawing and single-file HTML app export.

p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Processing. Looking for p5.js 2.0? http://beta.p5js.org

HTML components in pure Go.

The text editor designed to make coding as simple and fun as playing a video game

A professional front-end template for building fast, robust, and adaptable web apps or sites.

JasperReports® - Free Java Reporting Library