Browse free open source HTML/XHTML software and projects for Mac and Linux below. Use the toggles on the left to filter open source HTML/XHTML software by OS, license, language, programming language, and project status.
HTML, CSS and JS framework for developing responsive websites and apps
The granddaddy of HTML tools, with support for modern standards
Simple library that provides standard Unicode emoji for all platforms
Simple.css is a classless CSS template to make a good website
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
Bootstrap 5 & Material Design 2.0 UI KIT
The static code analysis tool you need for your HTML
Minimal CSS Framework for semantic HTML
The HTML5 Creation Engine, to create beautiful digital content
The warehouse's SpringBoot-based rights management system
From community websites to web applications, this CSS framework
Bring data to life with SVG, Canvas and HTML
Dominate is a Python library for creating and manipulating HTML docs
Filter and sort layouts
Juice inlines CSS stylesheets into your HTML source
Lexbor is development of an open source HTML Renderer library
Jekyll theme for building a personal site, blog, project documentation
The Pedestal Server-side Libraries
Centralized, well-typed, non-blocking set of APIs for PHP programmers
Electron based open source toolbox, free integration of rich plug-ins
Pure Java HTML / CSS rendering engine
Open Source HTML5 Web Audio Library
DataTables with Angular