Browse free open source HTML/XHTML software and projects for Windows below. Use the toggles on the left to filter open source HTML/XHTML software by OS, license, language, programming language, and project status.

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
    Start Free
  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
    Try Free
  • 1
    Bootstrap

    Bootstrap

    HTML, CSS and JS framework for developing responsive websites and apps

    Bootstrap is an HTML, CSS, and JS framework designed for developing responsive, mobile first projects on the web. It's one of the most popular front-end frameworks and for good reason: it simply makes web development faster and easier. People of all skill levels can create projects of all sizes with Bootstrap, and for all types of devices too. With Bootstrap, you get a host of nifty features such as precompiled CSS, impressive scalability, dozens of custom HTML and CSS components and more.
    Downloads: 28 This Week
    Last Update:
    See Project
  • 2
    Simple.css

    Simple.css

    Simple.css is a classless CSS template to make a good website

    A classless CSS framework that makes semantic HTML look good. By classless I mean that there are no CSS classes anywhere in the CSS or the HTML. So your website can look just like this using plain old vanilla HTML. When starting a new project, I wanted a CSS framework that would get me up and running quickly, and give me something I could hack on. I got sick of all these giant frameworks that include everything but the kitchen sink, 90% of which I’ll never use. For example, the minified CSS for the Bootstrap framework is 144KB in total. By comparison, Simple.css is around 4KB. Obviously Simple.css and Bootstrap don’t compare in terms of their functionality, but Simple.css allows website developers to spin something up very quickly that looks good and needs very little work. By using something like Simple.css, provides the basics to get up and running quickly (or just use it as-is for a simple, good-looking site) yet not have to learn an extremely convoluted framework.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 3
    JBake

    JBake

    Java based open source static site/blog generator for developers

    JBake is a Java-based, open source, static site/blog generator for developers & designers. The project uses Gradle 4.9+ as the build system. We configured the gradle check style Plugin to run with the check task. It does not break the build if convention violations are found. But prints a warning and generates a report. Source available on GitHub, licensed under MIT License. Binary distribution contains everything you need apart from a JRE, with no complicated environment setup with 3rd party dependencies. The binary distribution runs on Windows, Unix/Linux, and Mac OS X. Plugins are available for Gradle, Maven, mill, SBuild and sbt. Supports AsciiDoc, Markdown, and good old HTML formatted content. Freemarker, Groovy, Thymeleaf, Jade and Pebble-based templates & scripting support. Easily integrate CSS frameworks such as Bootstrap and Foundation. Store your site content in Dropbox, CVS, SVN, Git or whatever you want.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Lume

    Lume

    Create 3D web applications with HTML, bring a new depth to your DOM

    A toolkit that simplifies the creation of rich and interactive 2D or 3D experiences. LUME is composed of several packages that can be used individually, or together as a whole. HTML elements for easily defining rich and interactive 2D or 3D applications powered by CSS3D, WebGL, or both mixed together. This is a web component system that allows you to create new, fast, and performant HTML elements in a simple way. It provides the foundation for LUME's HTML elements and a standard pattern for building new elements that extend the features of LUME. Augment HTML elements with features called "behaviors" that are similar to custom elements: each behavior is defined as a class that has the same lifecycle methods as custom elements. The difference is that an unlimited number of behaviors can be associated with an element.
    Downloads: 0 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 5
    penthouse

    penthouse

    Generate critical CSS for your web pages

    The critical path is the path to render a web page, what's needed before that can happen. CSS Stylesheets block rendering. Until the browser has requested, received, downloaded, and parsed your stylesheets, the page will remain blank. By reducing the amount of CSS the browser has to go through, and by inlining it on the page (removing the HTTP request), we can get the page to render much, much faster. You should minify the critical CSS, then inline it on your page (wrapped in <style> tags). It should be placed in the header, replacing the full CSS link(s). The full CSS, and JS script tags (which also block rendering), should be moved out of the HEAD, to the end of the page, just before the closing body tag. You need to generate critical CSS for each page individually. Make sure to only move down the full CSS to the bottom of the page for pages where you have inlined critical path CSS in the header.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    turretcss

    turretcss

    Turret is a styles and browser behaviour normalisation framework

    Developed for design, turretcss is a styles and browser behavior normalization framework for the rapid development of responsive and accessible websites. Newly added features include: increasing the size scale, adding sizes for display title and lead, generic group styles, and box-shadow utility classes. Added utility classes for the cursor property. A generic group behavior to align and space between like items within lists. Globally set box shadows with size variants to set on any element easily with utility classes. PostCSS with postcss-preset-env to write tomorrow's CSS spec today with the polyfills you need. Designed for speed turretcss is designed to make responsive, accessible, and scalable CSS development simple, and predictable. Write clean, simple, and modern HTML & CSS with intuitive size and style utilities with PostCSS and postcss-preset-env.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next
MongoDB Logo MongoDB