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.

  • Our Free Plans just got better! | Auth0 Icon
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    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • 1
    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
    Leader badge
    Downloads: 46 This Week
    Last Update:
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  • 2
    Markdown Here

    Markdown Here

    Write email in Markdown and render them before sending

    If you’ve ever found writing email with code in it a hassle, Markdown Here is the perfect solution for you. Markdown Here is a browser extension that lets you write emails in Markdown, and then renders them before sending. It can also let you write Google Groups posts, blog posts, Evernote notes, Wordpress posts and more in Markdown, even in TeX mathematical formulae! Markdown Here is available for Google Chrome, Firefox, Safari, Opera, and Thunderbird. It supports syntax highlighting (once language has been specified in a fenced code block), insert tables, source code snippets and more! Discover how easy it can be to format your emails with Markdown Here!
    Downloads: 5 This Week
    Last Update:
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  • 3
    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: 3 This Week
    Last Update:
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  • 4
    AutoHome(Automatic Home Management System) to schedule Television,DVD,and any Infrared based devices(Roboraptor and RoboSapien)to work automatically.Can Send(transmit)/Recieve Remote Control Signals, launch EXE files in Computers/PC .It uses USBUIRT.
    Downloads: 3 This Week
    Last Update:
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    Build apps or websites quickly on a fully managed platform

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    Run frontend and backend services, batch jobs, host LLMs, and queue processing workloads without the need to manage infrastructure.
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  • 5
    A very small PHP website application which stores anonymously uploaded files and retrieves them by SHA1 hash (a fingerprint of the file which is provided after uploading). Developed for anonysource.org, a kanux project.
    Downloads: 1 This Week
    Last Update:
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  • 6
    Free open source software for the Universal Business Language and the ebXML framework including XSLT stylesheets to generate XForms for creating, editing and viewing UBL and ebXML documents, along with CAM templates for validating and error processing.
    Downloads: 1 This Week
    Last Update:
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  • 7
    ChatFox
    Sohbet ederken ozel ifadeler, goz kirpmalari, şarki sozleri gonderebilme, goz yormayan grafikler, size ozel sinirsiz messenger kişi listesi, TV, Radio, Flash oyunlar, gunluk fal gibi eğlence ihtiyaclarinin tumunu karşilayabilen bir program.
    Downloads: 0 This Week
    Last Update:
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  • 8
    EpisodeGrabber
    With the EpisodeGrabber you can keep track of your favorite TV-Show. It is parsing and collecting informations from all TV-Shows on epguides.com even with Cast Pictures. Make a Watchlist and download directly from isohunt.com
    Downloads: 0 This Week
    Last Update:
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  • 9
    Foundation for Emails

    Foundation for Emails

    Design responsive HTML emails that work on any device & email client

    Foundation for Emails is a framework that allows you to create responsive HTML emails that work on any device and on any email client, even Outlook. All of its HTML/CSS components have been tested, ensuring consistency across every major email client. Foundation for Emails consists of a solid set of customizable components, including a fully responsive grid, typography, alignment classes and more. It also has a new templating language, Inky, that makes it easier than ever to write HTML emails. Inky converts simple HTML into the complex tables required for email layout.
    Downloads: 0 This Week
    Last Update:
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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.
    Learn More
  • 10
    Free Responsive HTML Email Template

    Free Responsive HTML Email Template

    A free simple responsive HTML email template

    Sometimes you just want to send a simple HTML email with a simple design and clear call to action. This is it. This is a really simple email template. Its sole purpose is to get the recipient to click the button with no distractions. Save yourself the pain of coding HTML email and download email templates. There are over 30+ major email clients using different rendering engines and various email providers like Outlook, Gmail, Apple, Yahoo Mail. Email requires special development skills. It is important to consider the experience for iOS and Android users if you really want to get your return on investment. A broken mobile experience can break your campaign. You have a lot to do. You have websites to design, code to test, products to ship, campaigns to send. That's why these templates were created, to save you time. These HTML email templates have been tried and tested across all major email clients.
    Downloads: 0 This Week
    Last Update:
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  • 11
    HtmlClient provides an SGML/HTML/XHTML parser and connection client making web-spidering as easy for developers as actually surfing the web with a premade browser. Based on Apache's HttpClient.
    Downloads: 0 This Week
    Last Update:
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  • 12
    A web application built in java to collect snippet of code or items on the web in categories. The application is provided with user registration, snippet moderation, advanced code formatting and ActionScript API for Flash applications integration.
    Downloads: 0 This Week
    Last Update:
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  • 13
    LX is an online forum community website designed with performance, security, and design in mind. Written in PHP5 and still under active development, but it is usable.
    Downloads: 0 This Week
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  • 14
    Linx CMS has been moved to the LX/LuelinX project. https://sourceforge.net/projects/lue/
    Downloads: 0 This Week
    Last Update:
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  • 15
    Open Source bulletin board written entirely in object oriented PHP, including almost all up to date features. The project includes also several programming libraries, like template engine or database layer.
    Downloads: 0 This Week
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  • 16
    Planet, blog agregating tool, written in PHP
    Downloads: 0 This Week
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  • 17
    Pyris is a completely customizable blogging tool with RSS, a photo album, and much more! It is written in PHP and generates valid XHTML 1.0 Strict pages. It also archives old entries to XML files by month.
    Downloads: 0 This Week
    Last Update:
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  • 18
    RDVZ is a web application for meeting organization between several users. It works through an easy poll system to find the best meeting dates.
    Downloads: 0 This Week
    Last Update:
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  • 19
    Here is the ASP Forum I made including a CMS Administrator to manage the content of it. Any OS and/or environment you can run .asp on you can also use this forum on provided you modify the correct db configuration. [(:-)] Kyle
    Downloads: 0 This Week
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  • 20
    Shootingmanager is an interactive version of the shooters diary. It will work together with existing software solutions.
    Downloads: 0 This Week
    Last Update:
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  • 21
    Lightweight system for running a weblog. Features multiple authors, topics, Trackback, RSS (amongst others). TruBlog comes with easy installation and strong caching mechanisms, it's localisable and produces a valid XHTML. Theming is done through CSS.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Survey Definition and Input System. It permits to define surveys using XML. By means of transformation XLST is obtained an HTML version that can be cover through Internet and stored in databases MySql using a simple program PHP.
    Downloads: 0 This Week
    Last Update:
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  • 23
    VitoshaTrade is Distributed Artificial Neural Network trained by Differential Evolution for prediction of Forex. Project development is in Sofia, Bulgaria. Vitosha is a mountain massif, on the outskirts of Sofia, the capital of Bulgaria.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    W.A.L.K.S. Web Aided Laboratory for Knowledge Sharing is a multilingual web application, to give the ability to expert IT users, to help less experienced users solve their IT problems. This is about reducing digital divide throughout the world.
    Downloads: 0 This Week
    Last Update:
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  • 25

    Z Notation E-Mail Mark-up Tools

    Tools to convert Z mark-up to HTML or text.

    A small library and two command-line tools to parse and convert Z notation from the "e-mail" mark-up into HTML code, or into UTF-8 text with box-drawing graphics, or into the Z Standard text format. See the project's Wiki Home Page for details --- the "Wiki" button in the bar above, or the following link:
    Downloads: 0 This Week
    Last Update:
    See Project
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