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.
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  • 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
    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: 57 This Week
    Last Update:
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  • 2
    Listen 1

    Listen 1

    One for all free music in china (chrome extension)

    Listen 1 can search and play songs from Netease Cloud Music, Xiami, QQ Music, Kugou Music, Kuwo Music, Bilibili, Migu Music website, making your music library more comprehensive. It also supports the playlist function, you can easily play, collect and create your own playlist. Download the Chrome plugin version zip package and unzip it. Open the Chrome extension page and check "Developer Mode" in the upper right corner. Select "Load unpacked extension..." and select the folder you just unpacked. Download the Windows zip file and choose the 32-bit or 64-bit version according to the system. The original web player, using Python to develop a web server. Can run directly on the server, or use the packaged Windows and Mac versions to run the web server locally. Windows, Mac, Linux desktop. Using Electron framework, based on Listen 1 Chrome plug-in version JS library development.
    Downloads: 6 This Week
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  • 3
    Orphne is a highly specialized web browser, optimized for viewing "adult" content. Features include tagging, rating, and bookmarking sites, an integrated search, and slide shows. Please note that orphne is intended for adults only.
    Downloads: 53 This Week
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  • 4
    StackEdit

    StackEdit

    In-browser Markdown editor

    Unrivalled writing experience. StackEdit’s Markdown syntax highlighting is unique. The refined text formatting of the editor helps you visualize the final rendering of your files. StackEdit provides very handy formatting buttons and shortcuts, thanks to PageDown, the WYSIWYG-style Markdown editor used by Stack Overflow. Whether you write, you review, you comment… StackEdit's layout provides you with the flexibility you need, without sacrifice. StackEdit’s Scroll Sync feature accurately binds the scrollbars of the editor panel and the preview panel to ensure that you always keep an eye on the output while writing. StackEdit can sync your files with Google Drive, Dropbox and GitHub. It can also publish them as blog posts to Blogger, WordPress and Zendesk. You can choose whether to upload in Markdown format, HTML, or to format the output using the Handlebars template engine.
    Downloads: 5 This Week
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  • DAT Freight and Analytics - DAT Icon
    DAT Freight and Analytics - DAT

    DAT Freight and Analytics operates DAT One truckload freight marketplace

    DAT Freight & Analytics operates DAT One, North America’s largest truckload freight marketplace; DAT iQ, the industry’s leading freight data analytics service; and Trucker Tools, the leader in load visibility. Shippers, transportation brokers, carriers, news organizations, and industry analysts rely on DAT for market trends and data insights, informed by nearly 700,000 daily load posts and a database exceeding $1 trillion in freight market transactions. Founded in 1978, DAT is a business unit of Roper Technologies (Nasdaq: ROP), a constituent of the Nasdaq 100, S&P 500, and Fortune 1000. Headquartered in Beaverton, Ore., DAT continues to set the standard for innovation in the trucking and logistics industry.
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  • 5
    Search by Image

    Search by Image

    Browser extension for reverse image search, available for Chrome

    Search by Image is a powerful browser extension for Safari that makes effortless reverse image searches possible, and comes with support for more than 30 search engines, such as Google, Bing, Yandex, Baidu and TinEye. Search by Image is an open source project made possible thanks to a community of awesome supporters. By purchasing the extension on the Mac App Store, you help support the continued development of the extension. The extension helps journalists and researchers verify the authenticity of images, and assists in the identification of false information on social media. Search by Image is also popular among photographers, helping artists explore how their work is shared on the web, while shoppers find it valuable for discovering similar products at discounted prices. The extension enables you to search for images from the context menu and the browser toolbar with the help of a diverse set of reverse image search engines, which can be toggled and reordered from th
    Downloads: 2 This Week
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  • 6
    Nightingale

    Nightingale

    A community supported fork of the Songbird media player and library.

    Nightingale is a community created fork of the Songbird media player. It is developed by a proud community and we are equally proud to bring you the most extensible, feature-rich media experience on Windows, Mac, and Linux. See the official website at http://getnightingale.com for the source, builds, and information. On Sourceforge, we provide our releases, the binary deps for building, as well as builds for testing purposes.
    Downloads: 10 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
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  • 8
    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: 3 This Week
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  • 9
    An automated client developed for downloading sequenced files.
    Downloads: 2 This Week
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  • 10
    Ssspeak is a framework providing an SSML speech synthesizer wrapper around festival (the synthesizer) and a Firefox extension enabling your browser to read HTML pages to you. Via audible notifications and voice announcements about the state of the page be
    Downloads: 1 This Week
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  • 11
    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: 1 This Week
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  • 12
    Control AmaroK from any Firefox browser on your network.
    Downloads: 0 This Week
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  • 13
    AutoBrowse - The most creative screensaver of the world! Enter any search-word and any search-engine (default is google.de), and AutoBrowse will surf the net for you. Enioy!
    Downloads: 0 This Week
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  • 14
    Bootstrap Colorpicker

    Bootstrap Colorpicker

    Bootstrap Colorpicker is a modular color picker plugin for Bootstrap

    Bootstrap Colorpicker is a modular color picker plugin for Bootstrap 4. The Bootstrap JS dependency is optional and it is mainly needed for the popover support. No Bootstrap CSS is required for the plugin to work. To use the plugin without Bootstrap, the popover option should be set to false or null and, depending on your implementation, you will usually need to set inline to true and a container selector option. Note that the plugin may work without Bootstrap if your code is not using any of the mentioned Bootstrap dependencies. Note that the dist files are only distributed via the NPM and Yarn installations. The initial color can be specified in 3 ways, input value, data-color attribute and programmatically with the color constructor option. Whenever the format option is 'auto', the first parsed color format will be detected and used as default, but when the option equals null (default), the format is recalculated every time.
    Downloads: 0 This Week
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  • 15
    Turn Firefox into a Virtual TV See More info @ http://www.archive.org/details/BrowserVision Notes: Version 0.1.9 is only compatible with windows and Firefox 3.5.x & contains only channel updates. 0.2 is still under deelopment with more features.
    Downloads: 0 This Week
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  • 16
    CatBlock

    CatBlock

    The continued maintenance of Michael Gundlach's CatBlock

    After the creator of AdBlock, Michael Gundlach, retired official support of the CatBlock project, and made it Open-Source under the GNU GPLv3, two people decided to continue maintenance, albeit unofficially. This is that project.
    Downloads: 0 This Week
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  • 17
    Console Blocking For Defa Protector

    Console Blocking For Defa Protector

    Console Block For Full Video Protection of Defa Protector

    Console Block is a script to prevent javascript injection on webpage and very useful to prevent any spoofing on defa protector technology. This technology is currently experimental and is a son of defa protector
    Downloads: 0 This Week
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  • 18
    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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  • 19
    Emma (Extensible Multi Media Architecture) is an open-source, modular, extensible, dynamic framework for declarative authoring and display of 2D and 3D interactive multimedia. It uses Lua for scripting and Ogre3D for rendering. http://www.emma3d.org
    Downloads: 0 This Week
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  • 20
    Firefox, Safari and Opera 9 support the canvas tag to allow 2D command-based drawing. ExplorerCanvas brings the same functionality to Internet Explorer. To use, web developers only need to include a single script tag in their existing web pages.
    Downloads: 0 This Week
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  • 21
    Firescreen - Screenshots webpage

    Firescreen - Screenshots webpage

    Get in an immediate screenshots of your web pages for Firefox

    Get in an immediate screenshots of your web pages with this useful extension reserved for the famous Firefox browser. For installation of the addon you can click directly on the download button using your Firefox browser and authorize the addition of the extension. The project was realized with the support of the library: PDF API HTML5 - http://ulmdevice.altervista.org/pdfapihtml5 ========================== Opera add-on: http://opr.as/20Njeed Firefox add-on: http://mzl.la/23AD5P9
    Downloads: 0 This Week
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  • 22
    Small Firefox button that allow you share entire Flickr set to Livejournal account.
    Downloads: 0 This Week
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  • 23
    This is an extension for Firefox. You can launch streaming videos from a xul page loaded in firefox. Just select the date and click on one of the available link (editable in a xml file) to see the video in your prefered video player.
    Downloads: 0 This Week
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  • 24
    Image Converter HTML5

    Image Converter HTML5

    Image Converter HTML5 add-on for Firefox

    All client-side solution add-on for Browser Firefox: an essential and practical application for free-hand drawing and for the conversion of images in multiple formats with API HTML5 file system Release 1.2.1 - Remove get image from url because the operation is insecure Add-on Opera Browser: http://bit.ly/1OcJA1K Extension for Firefox: http://mzl.la/1O0fXB9
    Downloads: 0 This Week
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  • 25

    JAVIER

    JAvascript Voicexml InterpretER

    JAVIER is a JAvascript Voicexml InterpretER, designed (but not restricted) to run inside a web browser, its main engine has less than 1000 lines of code. It's maybe, the tiniest but (almost) FULL VoiceXML implementation.
    Downloads: 0 This Week
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