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
HTML to PDF converter for PHP
HTML, CSS and JS framework for developing responsive websites and apps
XSS sanitizer for HTML, MathML and SVG
phpipam open-source IP address management
The granddaddy of HTML tools, with support for modern standards
Convert HTML to PDF using Webkit (QtWebKit)
Convert PDF to HTML without losing text or format
Web Extension for saving a copy of complete web page in a single file
A static analyzer for Java, C, C++, and Objective-C
Happy DOM is a JavaScript implementation of a web browser
A language for writing HTML user interfaces in Go
Free Introduction to Bash Scripting eBook
Powerful rich text editor framework with a modular architecture
Hgh power tools for HTML
Converts CSS selectors to XPath expressions
The next generation Javascript WYSIWYG HTML Editor
Simple library that provides standard Unicode emoji for all platforms
An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
The Ray Tracing in One Weekend series of books
AdminKit is a free & open-source HTML dashboard & admin template
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript