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.
HTML to PDF converter for PHP
Convert HTML to PDF using Webkit (QtWebKit)
Convert PDF to HTML without losing text or format
WebDriver for Firefox
HTML, CSS and JS framework for developing responsive websites and apps
The granddaddy of HTML tools, with support for modern standards
Powerful rich text editor framework with a modular architecture
Simple library that provides standard Unicode emoji for all platforms
phpipam open-source IP address management
The next generation Javascript WYSIWYG HTML Editor
Tabler is free and open-source HTML Dashboard UI Kit
Free Introduction to Bash Scripting eBook
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
Web Extension for Firefox/Chrome/MS Edge and CLI tool
Test your rendered HTML files to make sure they're accurate.
Low output latency streaming HTML parser/rewriter with CSS API
An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
Converts CSS styles into inline style attributes in your HTML code
Java library for working with real-world HTML
Conversion from *.mht files to *.htm files.