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.

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

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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  • 1
    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP

    Open Source - GPLv3 inc images. *** PLEASE NOTE: There are now 2 seperate versions here. *** One is Pre Firefox 57. The other is Post Firefox 57. *** For those providing mirrors, please enable your users to realize this. Vidalia Based, Tor as a Service Solution. MicroSip: enables FREE PC to PC video calling with no account sign-up and no middleman server. WASTE: enables FREE Conference VoIP, chat, file transfer and support. *** AI Powered *** Tor/i2p: enables safer browsing. Tor/i2p Profile: Browse over Tor/i2p on Firefox (Vanilla, ESR), Waterfox (Classic, New), Palemoon , LibreWolf and legacy CyberFox. As with all versions of Tor - do not rely on this for strong anonymity. A usability enhanced Privacy Pack. Use alongside Tor Browser Bundle. An installer, for : Vista 32/64, Win7 32/64, Win8 32/64, Win10 32/64, Win11, Linux (Wine)
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    Downloads: 43 This Week
    Last Update:
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  • 2
    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: 14 This Week
    Last Update:
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  • 3
    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: 14 This Week
    Last Update:
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  • 4
    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: 4 This Week
    Last Update:
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  • Failed Payment Recovery for Subscription Businesses Icon
    Failed Payment Recovery for Subscription Businesses

    For subscription companies searching for a failed payment recovery solution to grow revenue, and retain customers.

    FlexPay’s innovative platform uses multiple technologies to achieve the highest number of retained customers, resulting in reduced involuntary churn, longer life span after recovery, and higher revenue. Leading brands like LegalZoom, Hooked on Phonics, and ClinicSense trust FlexPay to recover failed payments, reduce churn, and increase customer lifetime value.
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  • 5
    MeanOS

    MeanOS

    The smallest and the most powerful operating system.

    The first decentralized, artificially intelligent, MEAN.js stack, operating system. Mean OS is the only operating system hosted anonymous using a P2P network and a suite of non-standard in-browser delivery mechanisms. Mean OS is specifically designed to support both Brave and Tor but is compatible with all other major browsers. Mean OS is Proud to be a BRAVE and TOR supporter, be free!!
    Downloads: 2 This Week
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  • 6
    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: 2 This Week
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  • 7
    Fireprint - Web to Print

    Fireprint - Web to Print

    Fast Cloud Print Service with add-on of your modern browser

    ------ Update 12/08/2021 - Google Cloud Print Service has been deprecated ------ Print your web page using Google Cloud Print Service wherever you want - https://www.google.com/cloudprint/learn/?hl=en Chrome extension: http://bit.ly/1Wct1rL (not available for now) Opera add-on: http://bit.ly/1Mg5WJK Firefox add-on: http://mzl.la/1OXGxex ==Installation== 1. Download add-on directly from browser gallery 2. Click on icon of add-on in browser toolbar to sending and printing using Google Cloud Print
    Downloads: 1 This Week
    Last Update:
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  • 8
    Checky is an easy to use interface to many online validation and analysis services. Validate, analyze and view documents containing HTML, XHTML, CSS, RDF, RSS, XML, P3P, hyperlinks and metadata. Check Section 508 and WAI compliance of your documents.
    Downloads: 0 This Week
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  • 9
    CommSy

    CommSy

    Web-based Community System

    CommSy is a webbased community system, originally developed at the University of Hamburg, Germany, to support learning/working communities. For a more indepth description see the project home page. For questions or comments contact finck@commsy.net. Code is now hosted at GitHub. See https://github.com/commsy/commsy Documentation is available under: http://docs.commsy.net You can grep the latest development build of CommSy from http://jenkins.effective-webwork.de/job/CommSy%20Dev/lastSuccessfulBuild/artifact/
    Downloads: 0 This Week
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  • Create and run cloud-based virtual machines. Icon
    Create and run cloud-based virtual machines.

    Secure and customizable compute service that lets you create and run virtual machines.

    Computing infrastructure in predefined or custom machine sizes to accelerate your cloud transformation. General purpose (E2, N1, N2, N2D) machines provide a good balance of price and performance. Compute optimized (C2) machines offer high-end vCPU performance for compute-intensive workloads. Memory optimized (M2) machines offer the highest memory and are great for in-memory databases. Accelerator optimized (A2) machines are based on the A100 GPU, for very demanding applications.
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  • 10
    The DHTML library is thought as an enahncement to the server side logic processing. Enabling the user to make easy use of complexe DHTML functions which are crossbrowser compatible. Further info: dhtml.bit-heads.ch
    Downloads: 0 This Week
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  • 11
    Addons for any applications supporting the extension mechanism introduced by Mozilla products: Firefox, Thunderbird, Komodo, NVU, Mozilla Suite
    Downloads: 0 This Week
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  • 12
    This project is dead ... there are far better solutions available here at sourceforge. EditThis! - A generic web based HTML editor
    Downloads: 0 This Week
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  • 13
    Fire Detector

    Fire Detector

    Detect web framework and javascript libraries run on browsing website

    When you surf the internet with Fire Detector, You can also find more unknown frameworks and libraries. It is based on [LibrarySniffer](https://github.com/justjavac/ChromeSnifferPlus/). I've replaced some deprecated javascript interfaces with asynchronous ones adopted by Firefox for its add-ons --- ### Limitations - WebExtension only works on sites that allow content scripts. With this WebExtension, You can detect:
    Downloads: 0 This Week
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  • 14
    Firefox Password Filler

    Firefox Password Filler

    Fills login forms even after a delayed page load

    For some websites firefox does not save passwords or automatically fills the login forms. This extension scans the given urls multiple times to find the login form and then fills in username and password. Passwords are stored by the default firefox password manager. The input fields containing login information can be manually set by the user.
    Downloads: 0 This Week
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  • 15
    A Firefox plugin to automagically backup forum postings.
    Downloads: 0 This Week
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  • 16
    Internote provides persistent sticky notes for Mozilla's Firefox web browser. Notes are extremely customizable, and are saved between sessions, reappearing on the page they were created on.
    Downloads: 0 This Week
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  • 17

    LaceMedia Browser

    Firefox Based Browser

    Firefox Based Browser wirtten in VB.NET
    Downloads: 0 This Week
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  • 18
    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.
    Downloads: 0 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: 0 This Week
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  • 20
    Fast and easy to deploy PHP and AJAX driven file browser with caching support and options to secure folders with passwords. Packing of folders for download, showing picture thumbnails, previewing text files and software information files.
    Downloads: 0 This Week
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  • 21
    The second try of making a browsergame engine.
    Downloads: 0 This Week
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  • 22
    Online booking system for trainings.
    Downloads: 0 This Week
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  • 23

    SVG editor for ownCloud

    Create and edit SVG graphics directly in ownCloud. Based on svg-edit.

    This project provides an ownCloud-app (http://apps.owncloud.com) for editing and creating SVG vector graphics in your browser. It's based on the awesome "svg-edit"-project (http://code.google.com/p/svg-edit/). Features like collaborative editing may be implemented later.
    Downloads: 0 This Week
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  • 24
    S3B - Social Semantic Search and Browsing - is a middleware that delivers a set of search and browsing components that can be used in J2EE web applications to deliver user-oriented features based on semantic descriptions and social networking
    Downloads: 0 This Week
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  • 25
    Javascript library to emulate modal dialogs. Currently in alpha testing version 0.0.4
    Downloads: 0 This Week
    Last Update:
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