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
The granddaddy of HTML tools, with support for modern standards
Create QR Codes in PHP
A patched version of discord, with bot login support
HTML to PDF converter for PHP
Powerful rich text editor framework with a modular architecture
Convert PDF to HTML without losing text or format
The next generation Javascript WYSIWYG HTML Editor
phpipam open-source IP address management
Web Extension for Firefox/Chrome/MS Edge and CLI tool
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
Userscript designed to expand the functionality of YouTube
Convert HTML to PDF using Webkit (QtWebKit)
The last Markdown editor, ever
AdminKit is a free & open-source HTML dashboard & admin template
A native HTML4 / HTML5 Remote Desktop Protocol and SSH client
Personal portfolio for researchers, developers, and analysts
HTML, CSS and JS framework for developing responsive websites and apps
XSS sanitizer for HTML, MathML and SVG
Status, process, and documents for ECMA-262
An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
The Ray Tracing in One Weekend series of books