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)
HTML to PDF converter for PHP
Convert PDF to HTML without losing text or format
Electron based open source toolbox, free integration of rich plug-ins
HTML, CSS and JS framework for developing responsive websites and apps
The granddaddy of HTML tools, with support for modern standards
Tabler is free and open-source HTML Dashboard UI Kit
phpipam open-source IP address management
Powerful rich text editor framework with a modular architecture
The next generation Javascript WYSIWYG HTML Editor
Simple library that provides standard Unicode emoji for all platforms
A patched version of discord, with bot login support
Web Extension for Firefox/Chrome/MS Edge and CLI tool
From community websites to web applications, this CSS framework
Lighter, faster browser kernel of blink to integrate HTML UI in apps
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
The HTML5 Creation Engine, to create beautiful digital content
The Ray Tracing in One Weekend series of books
HTML Loader
HTML parsing/serialization toolset for Node.js.
Converts CSS selectors to XPath expressions