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
    Dompdf

    Dompdf

    HTML to PDF converter for PHP

    dompdf is an HTML to PDF converter. At its heart, dompdf is (mostly) a CSS 2.1 compliant HTML layout and rendering engine written in PHP. It is a style-driven renderer, it will download and read external stylesheets, inline style tags, and the style attributes of individual HTML elements. It also supports most presentational HTML attributes. PDF rendering is currently provided either by PDFLib or by a bundled version the R&OS CPDF class written by Wayne Munro. (Some important changes have been made to the R&OS class, however). In order to use PDFLib with dompdf, the PDFLib PECL extension is required. Using PDFLib improves performance and reduces the memory requirements of dompdf somewhat, while the R&OS CPDF class, though slightly slower, eliminates any dependencies on external PDF libraries.
    Downloads: 120 This Week
    Last Update:
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  • 2
    Tidy

    Tidy

    The granddaddy of HTML tools, with support for modern standards

    Tidy is a console application for macOS, Linux, Windows, UNIX, and more. It corrects and cleans up HTML and XML documents by fixing markup errors and upgrading legacy code to modern standards. libtidy is a C static and dynamic library that developers can integrate into their applications in order to bring all of Tidy’s power to your favorite tools. libtidy is used today in desktop applications, web servers, and more. Tidy tidies HTML and XML. It can tidy your documents by itself, and developers can easily integrate its features into even more powerful tools. Thanks for the efforts of HTACG and prominent contributors, HTML Tidy has a whole new heartbeat and a whole new life.
    Downloads: 45 This Week
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  • 3
    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: 43 This Week
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  • 4
    An implementation of DSSSL, a style language to format SGML or XML documents. OpenJade contains backends for various formats (RTF, HTML, TeX, MIF, SGML2SGML, and FOT). This project also maintains OpenSP.
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    Downloads: 246 This Week
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  • 5
    Froala Editor

    Froala Editor

    The next generation Javascript WYSIWYG HTML Editor

    Froala Editor is a lightweight WYSIWYG HTML Editor written in Javascript that enables rich text editing capabilities for your applications. Froala WYSIWYG HTML Editor is one of the most powerful JavaScript rich text editors ever. Froala Rich Text Editor has a vast range of both simple and complex features for all kind of use cases. Lots of features don't have to overwhelm the user with hundreds of buttons. The Froala's WYSIWYG editor smart toolbar can accommodate over 100 features in this simple interface. The Froala Smart Toolbar groups all actions by scope into 4 categories. It's an intuitive toolbar where every feature is easy to find and your most used ones are there for you. A WYSIWYG HTML editor created by developers, for developers. With a powerful API and documentation you can get started in minutes.
    Downloads: 30 This Week
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  • 6
    CKEditor 5

    CKEditor 5

    Powerful rich text editor framework with a modular architecture

    CKEditor 5 is a powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing. CKEditor 5 provides every type of WYSIWYG editing solution imaginable. From editors similar to Google Docs and Medium, to Slack or Twitter like applications, all is possible within a single editing framework. Builds are ready-to-use solutions to common editing needs. Every build can be customized to include a completely custom set of features. Features are flexible. You can write a custom feature once, and reuse it everywhere! CKEditor 5 is an ultra-modern JavaScript rich text editor with MVC architecture, custom data model and virtual DOM. It is written from scratch in ES6 and has excellent webpack support. Native integrations with Angular, React and Vue.js are available for your convenience. Building a mobile or cross-platform desktop application with JavaScript? CKEditor 5 is compatible with Electron and mobile devices (Android, iOS).
    Downloads: 26 This Week
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  • 7
    XDXF - XML Dictionary Exchange Format
    XDXF is a project to unite all existing open dictionaries and provide both users and developers with universal XML-based format, convertible from and to other popular formats like Mova, PtkDic, StarDict, ABBYY Lingvo etc. * New drafts of format can be found here: https://github.com/soshial/xdxf_makedict/tree/master/format_standard * The development of dictionary converter moved to Github: https://github.com/soshial/xdxf_makedict
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    Downloads: 128 This Week
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  • 8
    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: 24 This Week
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  • 9
    Twemoji

    Twemoji

    Simple library that provides standard Unicode emoji for all platforms

    Twitter’s open source emoji has you covered for all your project's emoji needs. With support for the latest Unicode emoji specification, featuring 3,245 emojis, and all for free. As an open source project, attribution is critical from a legal, practical and motivational perspective in our opinion. The graphics are licensed under the CC-BY 4.0 which has a pretty good guide on best practices for attribution. Although there are two kinds of parsing supported by this utility, we recommend you use DOM parsing, explained below. Each type of parsing accepts a callback to generate an image source or an options object with parsing info. The second kind of parsing is string parsing. This is unrecommended because this method does not sanitize the string or otherwise prevent malicious code from being executed; such sanitization is out of scope.
    Downloads: 18 This Week
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  • 10
    miniblink49

    miniblink49

    Lighter, faster browser kernel of blink to integrate HTML UI in apps

    miniblink is an open source, one file, small browser widget based on chromium. By using C interface, you can create a browser with just some line code. miniblink is an open source, single-file, and currently the smallest known chromium-based browser control. Through its exported pure C interface, a browser control can be created in a few lines of code. C++, C#, Delphi and other language calls (support C++, C#, Delphi language to call). Embedded Nodejs, support electron (with Nodejs, can run electron). Customize as you wish, simulate another browser environment. Perfect HTML5 support, friendly to various front-end libraries (support HTML5, and friendly to front framework). After turning off the cross-domain switch, you can use various cross-domain functions (support cross-domain). Headless mode, which greatly saves resources and is suitable for crawlers (headless mode, be suitable for Web Crawler).
    Downloads: 7 This Week
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  • 11
    CoreUI

    CoreUI

    Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript

    CoreUI Admin Panel is not another blend of 3rd parties free components and libraries. It's the only Open Source Bootstrap Admin Dashboard Template built on the enterprise-grade hand-crafted UI Components Library created and backed by professionals. CoreUI and CoreUI PRO are delivered with fully-featured, and ready-to-use admin panel templates for your application. Save thousands of development hours by using ready-made, reusable, and commonly used widgets and UI components. Moreover, CoreUI Bootstrap Admin Template is delivered with a ready-to-use environment, so you don't have to waste time configuring the project. All build scripts and tools are ready to use out of the box. With CoreUI Template you can start a new project in a minute!
    Downloads: 6 This Week
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  • 12
    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: 6 This Week
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  • 13
    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: 4 This Week
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  • 14
    Html Menu Generator

    Html Menu Generator

    Html menu generator

    The spatie/menu package provides a fluent interface to build menus of any size in your PHP application. If you're building your app with Laravel, the spatie/laravel-menu provides some extra treats. All classes provide a human-readable, fluent interface (no array configuration). Additionally, you can opt for a more verbose and flexible syntax, or for convenience methods that cover most use cases. You can programmatically add html classes and attributes to any item in the menu, or to the menu itself. You can add id, so you can easily target some of these elements with CSS or JS. The Laravel version of the menu package adds some extras like convenience methods for generating URLs and macros.
    Downloads: 4 This Week
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  • 15
    Parsedown

    Parsedown

    Better markdown parser in PHP

    Parsedown is capable of escaping user-input within the HTML that it generates. Additionally Parsedown will apply sanitisation to additional scripting vectors (such as scripting link destinations) that are introduced by the markdown syntax itself. If you wish to allow HTML within untrusted user-input, but still want output to be free from XSS it is recommended that you make use of a HTML sanitiser that allows HTML tags to be whitelisted, like HTML Purifier. In both cases you should strongly consider employing defence-in-depth measures, like deploying a Content-Security-Policy (a browser security feature) so that your page is likely to be safe even if an attacker finds a vulnerability in one of the first lines of defence. Safe mode does not necessarily yield safe results when using extensions to Parsedown. Extensions should be evaluated on their own to determine their specific safety against XSS.
    Downloads: 4 This Week
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  • 16
    Psl

    Psl

    Centralized, well-typed, non-blocking set of APIs for PHP programmers

    Psl is a standard library for PHP, inspired by hhvm/hsl. The goal of Psl is to provide a consistent, centralized, well-typed set of APIs for PHP programmers. A modern, consistent, centralized, well-typed, non-blocking set of APIs for PHP programmers.
    Downloads: 3 This Week
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  • 17
    Rubick

    Rubick

    Electron based open source toolbox, free integration of rich plug-ins

    Based on the electron open-source toolbox, free integration of rich plug-ins, creates the ultimate desktop efficiency tool, Rubick is one of the heroes of Dota, The core skill is the ability to use other heroes as plug-ins, Finished the walk, Very consistent with the design concept of this tool, So named Rubick. Plug-in management is based on npm package mode, installing plugins is as easy as installing npm packages. Support system plug-ins, as long as rubick is running, plug-ins can be used at any time. Support global shortcut key settings. Support clipboard file search. Support searching for locally installed apps or preferences. Support for MacOS. Support for Windows, and support for Linux. Click the rubick icon on the right side of the search box to enter the plug-in market, select the desired plug-in, and click the download button to download.
    Downloads: 3 This Week
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  • 18
    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: 3 This Week
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  • 19
    WebF

    WebF

    Build flutter apps with HTML/CSS and JavaScript.

    WebF (Web on Flutter) is a W3C standards-compliant web rendering engine based on Flutter, allowing web applications to run natively on Flutter. W3C Standards Compliant: WebF uses HTML/CSS and JavaScript to render content on Flutter, achieving 100% consistency with browser rendering. Front-End Framework Supports: As WebF is W3C standards compliant, it can be used with many front-end frameworks, such as React, Vue. Expand your Web App with Flutter: WebF is fully customizable. You can define a customized HTML element with Flutter Widgets and use it in your application or add a JavaScript API for any Dart library from pub.dev registry. Web Development Experience. WebF supports inspecting DOM structure, CSS styles and debugging JavaScript with Chrome DevTools, providing a browser-like web development experience. Write Once, Run Anywhere: With the power of WebF, You can write your web application and run it on any device that Flutter supports.
    Downloads: 3 This Week
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  • 20
    OpenBEXI HTML Builder
    OpenBEXI is a WYSIWYG HTML builder using the magic of HTML5 and CSS3 . By resizing, dragging and dropping various HTML widgets it is easy to build a web page. All texts using the DOJO editor, pictures, charts, chart-flows, Dygraphs, timelines, lists and DOJO widgets edited on your browser look like the HTML page you are going to publish to your web site. OpenBEXI provides a powerful CSS and JavaScript editor to change on the fly the presentation and the behavior of your web pages. Tools allow you to create, manage and publish web projects and HTML pages for Internet.
    Downloads: 13 This Week
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  • 21
    The LAMPAS project is a combination of common Open Source tools that provides a unified system from where administrators, developers and other parties can manage a large application cluster. The underlying platform is LAMP based.
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    Downloads: 55 This Week
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  • 22
    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
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  • 23
    jsoup

    jsoup

    Java library for working with real-world HTML

    jsoup is a Java library for working with real-world HTML. It provides a very convenient API for fetching URLs and extracting and manipulating data, using the best of HTML5 DOM methods and CSS selectors. jsoup implements the WHATWG HTML5 specification, and parses HTML to the same DOM as modern browsers do. jsoup is designed to deal with all varieties of HTML found in the wild; from pristine and validating, to invalid tag-soup; jsoup will create a sensible parse tree. The parser will make every attempt to create a clean parse from the HTML you provide, regardless of whether the HTML is well-formed or not. You have HTML in a Java String, and you want to parse that HTML to get at its contents, or to make sure it's well formed, or to modify it. The String may have come from user input, a file, or from the web.
    Downloads: 2 This Week
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  • 24
    nodejsscan

    nodejsscan

    nodejsscan is a static security code scanner for Node.js applications

    Static security code scanner (SAST) for Node.js applications powered by libsast and semgrep. nodejsscan is a static security code scanner for Node.js applications.
    Downloads: 2 This Week
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  • 25
    pywebview

    pywebview

    Build GUI for your Python program with JavaScript, HTML, and CSS

    pywebview is a lightweight cross-platform wrapper around a webview component that allows to display HTML content in its own native GUI window. It gives you power of web technologies in your desktop application, hiding the fact that GUI is browser based. You can use pywebview either with a lightweight web framework like Flask or Bottle or on its own with a two way bridge between Python and DOM. pywebview uses native GUI for creating a web component window: WinForms on Windows, Cocoa on macOS and QT or GTK on Linux. If you choose to freeze your application, pywebview does not bundle a heavy GUI toolkit or web renderer with it keeping the executable size small. pywebview is compatible with Python 3.
    Downloads: 2 This Week
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