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.

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  • 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: 54 This Week
    Last Update:
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  • 2
    tabler

    tabler

    Tabler is free and open-source HTML Dashboard UI Kit

    Tabler is fully responsive and compatible with all modern browsers. Thanks to its modern, user-friendly design you can create a fully functional interface that users will love! Choose the layouts and components you need and customize them to make your design consistent and eye-catching. Every component has been created with attention to detail to make your interface beautiful! We've created this admin panel for everyone who wants to create templates based on our pre-made components. Our mission is to deliver a user-friendly, clear and easy administration panel that can be used by both simple websites and sophisticated systems. The only requirement is basic HTML and CSS (and some Liquid) knowledge, as a reward, you'll be able to manage and visualise different types of data in the easiest possible way! With the support for mobile, tablet and desktop displays, it doesn’t matter what device you’re using. Tabler is responsive in all major browsers.
    Downloads: 33 This Week
    Last Update:
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  • 3
    WebHarvest - web data extraction tool
    Web data extraction (web data mining, web scraping) tool. It leverages well proved XML and text processing techologies in order to easely extract useful data from arbitrary web pages.
    Downloads: 32 This Week
    Last Update:
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  • 4
    7.css

    7.css

    A JS-independent, tree-shakeable CSS framework

    7.css is a CSS framework for building interface components that look like Windows 7. It is built on top of the GUI backbone of XP.css, which is an extension of 98.css. This framework relies on the usage of semantic HTML. To make a button, you'll need to use a button. Input elements require labels. Tabs rely on the role="tab" attribute. This page will guide you through that process, but accessibility is a primary goal of this project. It does not ship with any JavaScript, so it is compatible with your frontend framework of choice.
    Downloads: 4 This Week
    Last Update:
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  • 5
    Bitwarden Web

    Bitwarden Web

    The website vault

    The Bitwarden web project is an Angular application that powers the web vault.
    Downloads: 2 This Week
    Last Update:
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  • 6
    Kweb

    Kweb

    A Kotlin web framework

    Kweb is designed to make it easy for developers to create modern websites without having to worry about the complexities of communication between the server and the browser. With a unified codebase, you can focus on creating an intuitive and user-friendly interface, rather than spending time on technical details. By streamlining the development process, Kweb makes it easier to build functional and beautiful websites that meet the needs of your users. Kweb is a remote interface for a web browser's DOM (Document Object Model). With Kweb, you can create and manipulate DOM elements, and listen for and handle events, all using an intuitive Kotlin DSL that mirrors the structure of the HTML being created. Kweb is built on the Ktor framework, which handles HTTP, HTTPS, and WebSocket transport, and is optimized to minimize latency and resource usage on both the server and browser.
    Downloads: 2 This Week
    Last Update:
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  • 7
    NES.css

    NES.css

    NES-style CSS Framework

    NES.css is a NES-style(8bit-like) CSS Framework. NES.css is available via either npm (preferred), Yarn, or a CDN. Our package.json contains some additional metadata under the following keys, path to our main Sass source file, path to our non-minified CSS. NES.css doesn't provide any fonts, but we do maintain the following list of fonts that we recommend for usage alongside the library. NES.css only provides components. You will need to define your own layout. The recommended font for NES.css is Press Start 2P. However, Press Start 2P only supports English characters. When you're using this framework with any language other than English, please use another font. Follow the Google Fonts instructions about how to include them. NES.css only requires CSS and doesn't depend on any JavaScript.
    Downloads: 2 This Week
    Last Update:
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  • 8
    Vanilla Framework

    Vanilla Framework

    From community websites to web applications, this CSS framework

    Backed by open-source code and written in Sass by the Canonical Web Team. Vanilla contains a responsive CSS grid, basic style for HTML elements and a selection of key useful patterns and utility classes that you can extend. Designed to be composable, you can include the whole framework to avail of all styles or you can use only what you need for your project. Anyone can contribute to Vanilla, improve it and extend it. All the code is available on GitHub and is licensed under LGPLv3 by Canonical.
    Downloads: 2 This Week
    Last Update:
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  • 9
    layui

    layui

    Classic modular front-end UI framework

    Created by professional front-end, for full-level front-end and back-end developers, a low-threshold, out-of-the-box front-end UI solution. Layui (homonym: UI-like) is a front-end UI framework written with its own module specifications, following the writing and organization of native HTML/CSS/JS, with a very low threshold and ready to use. Its exterior is minimalist, but it does not lose its fullness. The volume is light and the components are abundant. Every detail from the core code to the API has been carefully crafted, which is very suitable for the rapid development of the interface. The first version of layui was released in the golden autumn of 2016. It is different from those UI frameworks based on the underlying MVVM.
    Downloads: 2 This Week
    Last Update:
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  • 10
    Bootstrap 5 UI KIT

    Bootstrap 5 UI KIT

    Bootstrap 5 & Material Design 2.0 UI KIT

    Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a carousel. Use MDB custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more. Indicate the loading state of a component or page with MDB spinners, built entirely with HTML, CSS, and no JavaScript. A card is a flexible and extensible content container. It includes options for headers and footers, a wide variety of content, contextual background colors, and powerful display options.
    Downloads: 1 This Week
    Last Update:
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  • 11
    RuoYi

    RuoYi

    The warehouse's SpringBoot-based rights management system

    The warehouse's SpringBoot-based rights management system is easy to read and understand, and the interface is simple and beautiful. The core technology uses Spring, MyBatis, and Shiro without any other heavy dependencies. I have always wanted to make a background management system, and I have seen many excellent open source projects but found no suitable ones. So I started to write a background system in my spare time. So there is Zoe. She can be used for all web applications, such as website management background, website member center, CMS, CRM, OA. All front-end and back-end codes are very compact and easy to use after encapsulation, and the probability of errors is low. Also supports mobile client access. The system will continue to update some useful functions. The user is the system operator, and this function mainly completes the system user configuration. Configure the system organization (company, department, group).
    Downloads: 1 This Week
    Last Update:
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  • 12
    The Wicket Stuff project makes third party components available using the Wicket web component framework. Subprojects of this project contain integrations for Spring, Groovy, Hibernate, Velocity and other popular Java open source projects.
    Downloads: 1 This Week
    Last Update:
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  • 13
    AJAX WebService component provides easy and efficient way to explore/invoke any WebServices directly from JavaScript (both RPC and Document style), without additional server-side support. Incorporated WebService Explorer shows many abilities of component
    Downloads: 0 This Week
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  • 14
    Awesome Blazor

    Awesome Blazor

    Resources for Blazor, a .NET web framework using C#/Razor

    Blazor lets you build interactive web UIs using C# instead of JavaScript. Blazor apps are composed of reusable web UI components implemented using C#, HTML, and CSS. Both client and server code is written in C#, allowing you to share code and libraries. Blazor is a feature of ASP.NET, the popular web development framework that extends the .NET developer platform with tools and libraries for building web apps. Blazor can run your client-side C# code directly in the browser, using WebAssembly. Because it's real .NET running on WebAssembly, you can re-use code and libraries from server-side parts of your application. Alternatively, Blazor can run your client logic on the server. Client UI events are sent back to the server using SignalR, a real-time messaging framework. Once execution completes, the required UI changes are sent to the client and merged into the DOM.
    Downloads: 0 This Week
    Last Update:
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  • 15
    Web 2.0 framework developed in PHP5 that allows you to develop interoperable, standards-compliant, scalable web applications without having to worry about the complexities of the underlying architecture for the most common of functionality.
    Downloads: 0 This Week
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  • 16
    The Bee Framework is a PHP 5 DI/IoC application framework based on the popular Spring Framework, bringing - among other features - XML-configured declarative Dependency Injection and a powerful MVC framework to PHP.
    Downloads: 0 This Week
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  • 17
    Bloom is a great rule-based development framework for websites, web applications and CMSs. Bloom (web-loom) rules promote consistent look and feel and integration of HTML, CSS, JavaScript, data model, etc. Bloom applications are single HTML pages (SPADE).
    Downloads: 0 This Week
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  • 18
    Bootflat

    Bootflat

    Flat UI KIT based on Bootstrap 3.3.0 CSS framework

    Bootflat is built on the foundations of Bootstrap, visioned in a stunning flat design. Bootstrap itself is a trusted, reliable and proven tool for developers. Built with Sass 3.4.9. Bootflat is built on Bootstrap 3.3.0: the sleek, intuitive, and powerful mobile-first front-end framework for faster and easier web development. Bootflat's components are built with HTML5 and CSS3. The pages use `header`, `nav` and `section` to build the layout. Bootflat also comes with several splendid color schemes built-in, and allows for easy customization. Bootflat uses lightweight high-function plugins for maximum performance, keeping CSS and JS file sizes down. Bootflat is fully responsive, built for mobile-first in mind. It provides off-screen navigation, and almost all the widgets are compatible with all screen sizes. Bootflat UI Kit is PSD User Interface Pack including a set of beautiful and pure components, which you can use to create startup projects, websites or iOS/Android Apps.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Bootstrap Native

    Bootstrap Native

    If you are looking for Bootstrap without jQuery, this is it.

    The lighter and more compact set of JavaScript components for Bootstrap is sourced with a modern ES6+ codebase and strong TypeScript definitions. At about half the size of the original and around 12kb gZipped, this library does most of Bootstrap & Popper combined. We launched the project back in 2015 with the goal of debunking the "write less do more" myth, meanwhile the Bootstrap developers themselves have decided to drop jQuery, however, we decided to keep maintaining the project for its many benefits and the learning experience. If you mainly use Bootstrap plugins for your projects, why not use a much lighter, potentially faster library, see a different perspective on the same challenges, interact with a less crowded community, and get a better chance to learn or say hi! The Alert component covers the specific original events and public methods, but just like the original plugin, does not provide any initialization option.
    Downloads: 0 This Week
    Last Update:
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  • 20
    Catharsis.Social Web Widgets

    Catharsis.Social Web Widgets

    Useful social media widgets to include on web pages of your site.

    Catharsis Social Web Widgets is a modern software library which provides useful social media widgets to include on web pages of your site. It comes adapted for several popular web frameworks and technologies: 1. ASP.NET MVC (https://github.com/prokhor-ozornin/Catharsis.NET.Web.Widgets) 2. Grails (https://github.com/prokhor-ozornin/Catharsis.Grails.Widgets) As of the latest version, the following areas are covered : 1. Cackle 2. Disqus 3. Facebook 4. Google 5. IntenseDebate 6. Mail.ru 7. RuTube 8. Surfingbird 9. Tumblr 10. Twitter 11. Vimeo 12. VKontakte 13. Yandex 14. YouTube 15. VideoJS
    Downloads: 0 This Week
    Last Update:
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  • 21
    The purpose of the Control Framework for PHP (CFP) is to design and implement a completely OO based approach to HTML form generation, form state management and form handling in PHP. CFP supports reusable form components.
    Downloads: 0 This Week
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  • 22
    DScripted is a JavaScript toolkit geared towards simplifying the development of highly dynamic web applications. The main component being a form validation framework which provides a non-obtrusive way of assigning javascript validations functions to
    Downloads: 0 This Week
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  • 23
    Dynamic Object Oriented Views -- absolute lightestweight PHP templating framework around. Inspired by PHPSavant but lower-footprint and contains built-in hooks to populate the headers of your XHTML documents.
    Downloads: 0 This Week
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  • 24
    Fat-Free Framework
    FAT-FREE is a powerful and lightweight PHP 5.3+ Web application framework designed to help you build dynamic and robust Web sites - fast! Unlike other PHP frameworks, Fat-Free aims to be usable - not usual.
    Downloads: 0 This Week
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  • 25
    A simple, yet powerful JavaScript framework that can help you build Web 2.0 applications. The framework is seperated into modules in order to reduce download times.
    Downloads: 0 This Week
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