Resources and materials to get yourself started with open source
WebDriver for Firefox
XSS sanitizer for HTML, MathML and SVG
HTML, CSS and JS framework for developing responsive websites and apps
A language for writing HTML user interfaces in Go
Web Extension for saving a copy of complete web page in a single file
Happy DOM is a JavaScript implementation of a web browser
A static analyzer for Java, C, C++, and Objective-C
Bootstrap 5 & Material Design 2.0 UI KIT
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
Static site generator that supports Markdown and reST syntax
AdminKit is a free & open-source HTML dashboard & admin template
Allows to easily create, process and reuse HTML forms
Converts CSS selectors to XPath expressions
Lighter, faster browser kernel of blink to integrate HTML UI in apps
PufferPanel is an open source game server management panel
openvpn-monitor is a web based OpenVPN monitor
Build GUI for your Python program with JavaScript, HTML, and CSS
PSWriteHTML is PowerShell Module to generate beautiful HTML reports
A collection of all country flags in SVG
Status, process, and documents for ECMA-262
The fastest way to create an HTML app
Publii is a desktop-based CMS for Windows, Mac and Linux
Convert HTML to Markdown with PHP
Converts CSS styles into inline style attributes in your HTML code