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.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

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  • Picsart Enterprise Background Removal API for Stunning eCommerce Visuals Icon
    Picsart Enterprise Background Removal API for Stunning eCommerce Visuals

    Instantly remove the background from your images in just one click.

    With our Remove Background API tool, you can access the transformative capabilities of automation , which will allow you to turn any photo asset into compelling product imagery. With elevated visuals quality on your digital platforms, you can captivate your audience, and therefore achieve higher engagement and sales.
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  • 1
    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: 315 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: 34 This Week
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  • 3
    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: 100 This Week
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  • 4
    mht to htm

    mht to htm

    Conversion from *.mht files to *.htm files.

    Conversion from *.mht files to *.htm files. mht2htm extracts all files from mht in single dir so you can open it on any OS. Also works with .eml, .msg, .nws... files
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    Downloads: 51 This Week
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  • MongoDB Atlas | Run databases anywhere Icon
    MongoDB Atlas | Run databases anywhere

    Ensure the availability of your data with coverage across AWS, Azure, and GCP on MongoDB Atlas—the multi-cloud database for every enterprise.

    MongoDB Atlas allows you to build and run modern applications across 125+ cloud regions, spanning AWS, Azure, and Google Cloud. Its multi-cloud clusters enable seamless data distribution and automated failover between cloud providers, ensuring high availability and flexibility without added complexity.
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  • 5
    Jericho HTML Parser is a java library allowing analysis and manipulation of parts of an HTML document, including server-side tags, while reproducing verbatim any unrecognised or invalid HTML.
    Downloads: 9 This Week
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  • 6
    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: 7 This Week
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  • 7
    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: 26 This Week
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  • 8
    MediaWiki is the collaborative editing software that runs Wikipedia, the free encyclopedia, and other projects. MediaWiki is no longer distributed via SourceForge, for downloads and other information please visit www.mediawiki.org.
    Downloads: 7 This Week
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  • 9
    adx - addressbook.xml

    adx - addressbook.xml

    Minimalistic address book in web browser. No server or plugin needed.

    Minimalistic but full-featured addressbook in your web browser. adx is a standalone and portable web app (online and offline). FEATURES Contact Management, portable, small (~350KB), lightweight, contact tagging, geo mapping, web accounts, trigger phone/Skype calls, etc. EXPORT FUNCTIONALITY vCard (as file or QR code via offline generator) HOW IT WORKS Your address-book (XML file) is transformed in your web browser (via XSLT) to a full-featured web application (HTML). REQUIREMENTS Web browser for viewing adx; online hosting or local storage is possible (for local storage most modern browsers need to be configured to allow access to local files); NO server, plugin or anything else needed. Any text editor can be used for contact editing (addressbook.xml).
    Downloads: 6 This Week
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  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
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  • 10
    XForms to XHTML+Javascript (AJAX) conversion based on a unique XSL transformation. Suitable server-side (PHP) or client-side (Internet Explorer, Mozilla FireFox, Opera, Safari) browser treatement where an XSLT 1.0 engine is available
    Downloads: 2 This Week
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  • 11
    Free web browser for the Nintendo DS game console
    Downloads: 8 This Week
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  • 12
    phpMyBitTorrent: BitTorrent Tracker written in PHP. Features include: hosting torrents from remote trackers, DHT, Compact Announce, alternate links (eD2K, Magnet), HTTP-Basic Authentication, Passkey Authentication, embedded HTML Editor, Mass-upload of to
    Downloads: 2 This Week
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  • 13
    Developed by the Web Technology Group at Appalachian State University, phpWebSite provides a complete web site content management system ( CMS ). All client output is XHTML 1.0 and meets the W3C's Web Accessibility Initiative requirements.
    Downloads: 1 This Week
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  • 14

    HTML parser in Delphi

    A Delphi class with functions to read and dissect a HTML file

    THTMLdom is a (Delphi) class with functions to read a HTML source file and dissect it into a tree of THTMLelement. The attributes of the HTML tags are stored in the elements. Functions are provided to select elements on the basis of the attribute values or tag names. The structure of the tree can be shown and it can be rendered as plain text. The source is plain Delphi pascal, requiring a version that supports Tdictionary. There is no dependency on 3rd party units. The file to be parsed must have valid HTML4/5 tags. It is not necessary that the HTML is ‘correct’ in the sense that end tags may be wrongly placed or be absent altogether. The speed of processing (reading+parsing) is formidable: 15-40 msec per Mbyte or around 1 msec per 1000 HTML tags.
    Downloads: 3 This Week
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  • 15
    RTF2HTML is a name for a cross-platform C++ library (DLL, OCX) and command-line utility, which is intended to convert documents from Rich Text Format (e.g. Word, OO Writer) to HTML. Its features are tiny size, speed, low mem usage and compact output.
    Downloads: 3 This Week
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  • 16
    htmlarea

    htmlarea

    Small, powerful, full featured WYSIWYG editor

    HTMLArea 4 is a browser based WYSIWYG editor that easily replaces the TEXTAREA in your web pages. It is written in JavaScript, and suitable for use in any modern web browser, and any page on your web site. Current version is 4.0-2016-08-29
    Downloads: 3 This Week
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  • 17
    MSWord2CHM is a VB.NET application for converting MS Office Word documents (doc) into the compiled help (chm) document format, using the Primary Interop Assemblies (PIA) and the 'HTML Tidy' and 'TidyForNet' libraries
    Downloads: 5 This Week
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  • 18
    RTF to HTML converter for use both with your applications and as a standalone tool. Small and fast. Processes tables better than any other tool I've seen.
    Downloads: 4 This Week
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  • 19
    Formitable is a PHP class which can output HTML forms from MySQL database tables. The table is analyzed in order to output a form which uses the best input type for each field. The forms are customizable and data is inserted into the table on submission.
    Downloads: 2 This Week
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  • 20
    The oBIX toolkit provides a Java software library for implementing oBIX enabled applications. The toolkit contains a data model for obj trees, XML encoder/decoder, REST session management, and a Swing diagnostics tool.
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    Downloads: 2 This Week
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  • 21
    HTML++

    HTML++

    Object-oriented generation of HTML code on .NET 4 Client Profile

    This library allows you to generate HTML pages directly from your code in a strongly typed, compositional, safe and concise manner. Requires the .NET Framework 4 Client Profile only. It is licensed under LGPL, which means that you may use it in commercial products. The project logo is from Mariano Real, who kindly provided it under a Creative-Commons license.
    Downloads: 3 This Week
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  • 22
    JavaScript QR Code

    JavaScript QR Code

    Make QR Codes in JavaScript

    A mini javascript library to get the famous QR code. You can set the size, content to be encoded and get the html code to include the image in your web pages. You can also share the image via email with a simple interface included in the mini library Now is available Desktop app, QR Code Generator, where Window 7 and later are supported. Both x86 and amd64 (x64) binaries are provided for Windows. Please note, the ARM version of Windows is not supported for now. Get Android app: https://play.google.com/store/apps/details?id=com.ulm.chartgeneratordroid Get Firefox add-on: http://mzl.la/1Jp8A57 Get Opera extension: http://bit.ly/1jzYiU5
    Downloads: 3 This Week
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  • 23
    Mobirise Free Mobile Website Builder

    Mobirise Free Mobile Website Builder

    Create awesome mobile-first websites - No coding!

    Mobirise allows users with no prior HTML/CSS knowledge to create responsive Google-friendly websites in no time. Mobirise offers over 80 themes based on Google AMP (Accelerated Mobile Pages) and Bootstrap 4. AMP themes make it possible for you to build lightning-fast websites that provide better user experience on smartphones! With Bootstrap themes, you will be able to make sites that fit any screen just perfectly and look highly professional and modern. Using Mobirise Free Website Builder you can create and edit your website's pages visually with the help of the drag and drop feature, inline page editor and easy-to-use site settings.
    Downloads: 3 This Week
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  • 24
    html2pdf
    HTML2PDF is a PHP class using FPDF for the PHP4 release, and TCPDF for the PHP5 release. It can convert valid HTML and xHTML to PDF. More details and examples on http://html2pdf.fr/ HTML2PDF is now on GitHub : https://github.com/spipu/html2pdf/
    Downloads: 1 This Week
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  • 25
    NBBC is a high-speed, extensible, sophisticated, well-documented, easy-to-use validating BBCode parser written in PHP. ________________________ NOTE: THIS COPY OF NBBC HAS NOT BEEN UPDATED IN A LONG TIME. There are currently two active maintainers of NBBC: - Theyak (https://github.com/theyak/nbbc) has a copy of NBBC that still works with PHP 4, and is still more-or-less the 1.x source tree, but it has had some of the outstanding bugs fixed. - Vanilla (https://github.com/vanilla/nbbc) has been actively maintaining NBBC, and now has a v2.x that has been upgraded to support modern PHP 5/6/7 and has new features and functionality. If you want the latest edition of NBBC, this is probably the right place to go!
    Downloads: 1 This Week
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