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

  • Full-stack observability with actually useful AI | Grafana Cloud Icon
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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  • 1
    PortableApps.com

    PortableApps.com

    Portable software for cloud, local, and portable USB drives

    PortableApps.com is the world's most popular portable software solution allowing you to take your favorite software with you. A fully open source and free platform, it works from any synced cloud folder (DropBox, Google Drive, Box, etc), from your local PC on an internal or external drive, or on any portable storage device (USB flash drive, memory card, portable SSD or hard drive, etc) moved between PCs. With millions of users all over the world, nearly 500 real open source and freeware apps in our main app store (no shovelware), compatible commercial software, and partners in hardware industry, PortableApps.com is the most complete solution for life on the go.
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    Downloads: 384,539 This Week
    Last Update:
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  • 2
    Safe Exam Browser
    Safe Exam Browser is a webbrowser-environment to carry out online-exams safely. The software changes any computer into a secure workstation. It regulates the access to any utilities and prevents students from using unauthorised resources.
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    Downloads: 142,042 This Week
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  • 3
    Chromium Portable

    Chromium Portable

    Portable version of the Chromium web browser

    Chromium Portable is a portable version of the Chromium web browser, packaged in the PortableApps.com Format, so you can run it from an iPod, USB flash drive, portable hard drive, CD or any other portable media.
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    Downloads: 194 This Week
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  • 4
    FreeWRL VRML/X3D browser
    FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
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    Downloads: 119 This Week
    Last Update:
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • 5

    fbvlc

    Vlc web plugin based on FireBreath

    This project is not supported anymore. Please use WebChimera Plugin instead: http://WebChimera.org
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    Downloads: 258 This Week
    Last Update:
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  • 6
    Graphite is a project within SIL's scripts and software dev groups to provide cross-platform rendering for complex writing systems. This project has been deprecated. Graphite2, a new version of the Graphite engine, is available at: https://github.com/silnrsi/graphite with its own bug tracker.
    Leader badge
    Downloads: 92 This Week
    Last Update:
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  • 7

    WebChimera

    Web Plugin powered by Firebreath/Qt Qml/Vlc

    Vlc Web Plugin with possibility of UI customization via Qt Qml.
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    Downloads: 67 This Week
    Last Update:
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  • 8
    We provide a Hebrew version of Mozilla Firefox, Mozilla Thunderbird, SeaMonkey and Mozilla Application Suite. SeaMonkey/Mozilla Suite are also available for download from here, while the latest Firefox & Thunderbird are available only from mozilla.com.
    Downloads: 56 This Week
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  • 9

    Firefox Bookmarks.html Merger

    Program for intelligently merging firefox bookmars.html files.

    A python module that parses the 'bookmarks.html' files that firefox creates. Multiple bookmark files can be merged together and finally a new bookmarks.html file written. It depends apon the python module pyparsing.
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    Downloads: 13 This Week
    Last Update:
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  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

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  • 10
    This project is essentially a de-branded version of Mozilla Firefox, spun off from IceWeasel for Debian Linux distros.
    Downloads: 16 This Week
    Last Update:
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  • 11
    Sarissa is a cross-browser ECMAScript lib that helps with browser incompatibilities in XMLHttpRequest/XML/XSLT/XPath along with some bonus utility methods. People call some of this Ajax nowdays, but the term was not available back in early 2003 ;-)
    Downloads: 4 This Week
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  • 12
    Livenet is a free web browser, designed to make surfing the web faster, safer and easier. It's written with performance in mind; it is only about 1Mb in size and uses around 14Mb of RAM. A lot of time is spent working on features and making things more
    Downloads: 15 This Week
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  • 13
    Addons for any applications supporting the extension mechanism introduced by Mozilla products: Firefox, Thunderbird, Komodo, NVU, Mozilla Suite
    Downloads: 3 This Week
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  • 14
    BrowserLauncher2, a continuation of the BrowserLauncher project, is a library that facilitates opening a browser from a Java application and directing the browser to a supplied url. In most cases the browser opened will be the user's default browser.
    Downloads: 12 This Week
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  • 15
    KCFinder
    KCFinder is an alternative to the CKFinder web file manager. It can be integrated into FCKeditor, CKEditor, and TinyMCE WYSIWYG web editors to upload and manage images, flash movies, and other files that can be embedded in generated HTML content.
    Downloads: 2 This Week
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  • 16
    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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  • 17
    ASCIIMathML.js: a JavaScript to convert ASCII math notation (and some LaTeX) to Presentation MathML while your webpage loads. Now also simple graphs are translates to SVG. Works with Firefox 2.0+ or with Internet Explorer 6/7+MathPlayer+Adobe SVGview.
    Downloads: 2 This Week
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  • 18
    Midori is a lightweight web browser.
    Downloads: 7 This Week
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  • 19
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 1 This Week
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  • 20
    it's web browser / serching aplliction thta is built in order to help others to search in some search engines
    Downloads: 6 This Week
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  • 21
    Set Proxy
    Simple Program For Set IE Proxy Setting.
    Downloads: 3 This Week
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  • 22
    Client/aggregator for free online language services - translators, dictionaries, thesauruses . Allow to translate text over 41 sites, 53 services, 70 languages, more of 4000 translation directions.
    Downloads: 3 This Week
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  • 23
    Small footprint J2ME browser core for displaying XHTML and HTML documents on Wireless Java enabled embedded devices. Derived from a student project at the FH Joanneum (University of Applied Sciences Kapfenberg, Austria)
    Downloads: 3 This Week
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  • 24
    ftk is an ActionScript 2.0 library and is focused on data input/output. Most notably are the serialization classes based on php's un/serialize format.
    Downloads: 3 This Week
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  • 25
    Pirate is a programmable API for developing complex, extensible JavaScript objects and modules.
    Downloads: 3 This Week
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