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

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  • 1

    seaart-save-metadata

    Chrome extention to save metadata of works on seart.ai in XMP in files

    (modified 2025-12-20) v1.1.0 Now it also works on `postDetail` pages. Chrome extention to save metadata of works on seart.ai in XMP and embed them into files. Works on /explore/detail pages and /postDetail/ pages. Does NOT work to videos. Filenames are automatically sanitized. It saves: prompt, model, checkpoint, lora, creator, source, etc. of each work. Press a button to start fetching metadata and download a work on a target page. # Installation Unpack the release and directly load it into Chrome with "Load unpacked".
    Downloads: 4 This Week
    Last Update:
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  • 2
    Greasemonkey
    Remote repository and documentation for user.js engine
    Downloads: 7 This Week
    Last Update:
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  • 3
    Password Extractor

    Password Extractor

    Transfer passwords to and from K-Meleon

    Transfer passwords between browsers. This extension for K-Meleon can also be installed on other browsers that use XUL including SeaMonkey, Pale Moon, Mypal, Roytam's New Moon, and Waterfox Classic. The Password Extractor XML export/import format is also used by Password Exporter (for Firefox and SeaMonkey) and Password Backup Tool (for Pale Moon and Basilisk). The CSV export format is compatible with popular browsers and password managers including Mozilla Firefox, Google Chrome, Microsoft Edge, Opera, Brave, Vivaldi, KeePass, and KeePassXC. To import passwords from another browser's CSV password export use the Password Extractor conversion tool for your browser.
    Downloads: 7 This Week
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  • 4
    Text to Voice
    'Text to Voice' or 'Text to Speech' is 1 of the coolest Firefox add-ons. It gives ur brwsr the pwr of speech. Select txt, clck the bttn on the bttm rite & this add-on spks the selectd txt 4 u. Isn't it brllant? Moreovr odio file cn b dnloaded as
    Downloads: 7 This Week
    Last Update:
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  • 5
    Standard-Sitemap Project
    The Standard-Sitemap Navigator is a Firefox extension to help navigate websites. The webmaster of a site can provide a navigational sitemap in XML, and this extension fetches it and displays it as you visit.
    Downloads: 6 This Week
    Last Update:
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  • 6
    LeechCraft
    LeechCraft is a cross-platform modular "internet-client" application. It has plugins that allow one to browse the web, chat via instant messaging (like Jabber or IRC), read RSS/Atom feeds, download files via BitTorrent, Direct Connect and other protocols, play media files and much more.
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    Downloads: 2 This Week
    Last Update:
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  • 7
    Another YouTube Downloader
    Cross browser userscript to download videos from YouTube in various formats and sizes available. Find size of videos before downloading (http://pradip.x10.mx/index.php/download-details/36/Helper) Check Readme.txt in Files section for installation instructions.
    Downloads: 3 This Week
    Last Update:
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  • 8
    Mantra on Chromium

    Mantra on Chromium

    Chromium based portable browser for pentesters

    MoC is a chromium based portable browser with collection of open source extensions meant for penetration testers, web application developers and security professionals etc.
    Downloads: 5 This Week
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  • 9
    Addons for any applications supporting the extension mechanism introduced by Mozilla products: Firefox, Thunderbird, Komodo, NVU, Mozilla Suite
    Downloads: 1 This Week
    Last Update:
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  • 10
    PDF Download is a Firefox extension that improve your surfing experience: when you click on a link to a PDF file, it allows to choose if you want to view the PDF file inside the browser (as PDF or as HTML), outside Firefox or if you want to download it.
    Downloads: 4 This Week
    Last Update:
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  • 11

    ReorJS

    Distributed Computing with JavaScript

    Create your own distributed computer that can distributed javascript based applications to any computer with a web browser, headless browser or node.js installation. For more information and updates please see our website - http://reorjs.com.
    Downloads: 4 This Week
    Last Update:
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  • 12
    See Passwords

    See Passwords

    An add-on for Firefox to show passwords in web pages

    Displays all passwords of web pages with just one click with this handy extension dedicated to the Firefox browser Firefox add-on: http://mzl.la/1LuZIMd Opera extension: http://bit.ly/1VDjrZn
    Downloads: 4 This Week
    Last Update:
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  • 13
    Simple Browser is a Windows-Application that is a web browser written entirely out of HTML, JavaScript and CSS. The source files are multi-platform and always available to be modified.. Simple Browser is great for use in any application in any language.
    Downloads: 4 This Week
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  • 14
    myrtille

    myrtille

    A native HTML4 / HTML5 Remote Desktop Protocol client

    Myrtille is a simple way to connect remote desktops and applications from a native web browser, without plugin, extension or configuration. For the end user, there is just need for a browser. Server side, it uses the .NET (C#) framework and the RDP protocol through an HTTP(S) gateway. It's very comparable to Guacamole (https://github.com/glyptodon) or FreeRDP-WebConnect (https://github.com/FreeRDP/FreeRDP-WebConnect), except it uses the Microsoft .NET (C#) technologies for a better integration with the Remote Desktop Services (RDS) layer. It also support HTML4, in addition to HTML5, for backward compatibility.
    Downloads: 4 This Week
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  • 15
    custombuttons
    Custom Buttons is a Mozilla Firefox extension, that allows you to add custom toolbar buttons.
    Downloads: 2 This Week
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  • 16
    pinvault-pro-extension

    pinvault-pro-extension

    AI-powered browser extension for bulk downloading Pinterest images wit

    PinVault Pro is a professional-grade browser extension that revolutionizes Pinterest image downloading with AI-powered technology. The extension provides intelligent bulk selection, auto-scroll functionality, and maintains HD quality downloads while respecting Pinterest's terms of service. 🎯 Core Features: • Visual checkbox overlays on Pinterest images for intuitive selection • AI-powered auto-scroll with smart content detection • Bulk download capabilities with real-time progress tracking • HD quality preservation in original resolution • Modern glassmorphism interface design • Privacy-focused architecture with no external servers • Cross-browser compatibility (Firefox, Chrome, Edge, Opera) • Real-time synchronization between popup and sidebar interfaces 🌍 Universal Browser Support: • Firefox: Official Mozilla Add-ons Store approval (61.4 KB package) • Chrome/Edge: Manifest V3 compatible (60.0 KB package) • Opera: Manifest V3 compatible (60.3 KB package)
    Downloads: 2 This Week
    Last Update:
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  • 17
    ArchView is an extension of Firefox, which can open archive file online without downloading the whole archive. ArchView supports RAR and ZIP formats; HTTP, FTP and file: protocols. And it can present XUL or HTML interface.
    Downloads: 2 This Week
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  • 18
    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: 2 This Week
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  • 19
    MM3-ProxySwitch - Firefox WebExtension

    MM3-ProxySwitch - Firefox WebExtension

    MM3-ProxySwitch - Firefox & Chrome - Extension (Add-ons)

    In Browser Chrome by Google or Firefox and Thunderbird by Mozilla you can per default configure only the setting for one internet connection. With the MM3- Proxy Switch you can manage different configurations and simply switch over between these.
    Downloads: 2 This Week
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  • 20
    Web Security Audit

    Web Security Audit

    Passively audits the security posture on current page for your browser

    The goal of this project is to build an add-on for browser that passively audits the security posture of the websites that the user is visiting. Assume that the tool is to be used on non-malicious websites, currently not under attack or compromised. Add-on wants to report security misconfigurations, or failure to use best security practices. - Add-on tries to analysis the commonly vulnerable setting of servers: lack of use of security-relevant headers, including: - strict-transport-security - x-xss-protection - content-security-policy - x-frame-options - x-content-type-options It is available for Opera Beta and Developer browser - https://bit.ly/2TvvFw4
    Downloads: 2 This Week
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  • 21
    WebSuper

    WebSuper

    Créez des logiciels en HTML !!!

    WebSuper permet de créer un petit programme permettant d'aller sur internet. Pour le faire fonctionner, lisez cet article : http://websuper.cylune.fr/
    Downloads: 2 This Week
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  • 22

    foxfm

    extensions of the OFM views and supporting functions for the manager

    Download for Firefox 48 and later here: https://addons.mozilla.org/de/firefox/addon/foxfm2/ Follow version of foxfm is foxfm2 and maintained here: https://github.com/kabeleced77/foxfm2 The main target of the Firefox addon foxfm is to support the player of OFM with additional and usefull information. A second aim of foxfm is to reduce the number of clicks required for certain actions like buying or selling players. The prices of all stadium blocks can be changed by one click. foxfm provides a wide variety of configuration items to adjust it to the individual needs.
    Downloads: 2 This Week
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  • 23
    Generic and flexible secure web application to manage clients, invoices, contracts and events reservations. It is built in Java with Internationalisation feature.
    Downloads: 1 This Week
    Last Update:
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  • 24
    DENG is a modular class library written in OOP Actionscript 1, turning the Macromedia Flash Player 6 into a webbased, zero-install, cross browser/platform, modular and standards compliant XML/CSS2 browser.
    Downloads: 1 This Week
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  • 25
    JSPackaging is a JavaScript framework that provides simple directives for defining, loading & importing uniquely named packages of JavaScript modules. UPDATE: This project now exists as Ajile at http://sf.net/projects/ajile & http://ajile.iskitz.com.
    Downloads: 1 This Week
    Last Update:
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