Browse free open source HTML/XHTML software and projects below. Use the toggles on the left to filter open source HTML/XHTML software by OS, license, language, programming language, and project status.
WebDriver for Firefox
Convert HTML to PDF using Webkit (QtWebKit)
Convert PDF to HTML without losing text or format
HTML to PDF converter for PHP
HTML, CSS and JS framework for developing responsive websites and apps
The granddaddy of HTML tools, with support for modern standards
phpipam open-source IP address management
Powerful rich text editor framework with a modular architecture
Simple library that provides standard Unicode emoji for all platforms
Tabler is free and open-source HTML Dashboard UI Kit
The next generation Javascript WYSIWYG HTML Editor
A patched version of discord, with bot login support
The Ray Tracing in One Weekend series of books
Write email in Markdown and render them before sending
Lighter, faster browser kernel of blink to integrate HTML UI in apps
Web Extension for Firefox/Chrome/MS Edge and CLI tool
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
Status, process, and documents for ECMA-262
Low output latency streaming HTML parser/rewriter with CSS API
PSWriteHTML is PowerShell Module to generate beautiful HTML reports
Classic modular front-end UI framework