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.

  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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    Cut Data Warehouse Costs by 54%

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  • 1
    Browserpass

    Browserpass

    Legacy Browserpass repo

    Browserpass is a Chrome & Firefox extension for zx2c4's pass, a UNIX based password manager. It retrieves your decrypted passwords for the current domain and allows you to auto-fill login forms, as well as copy it to clipboard. If you have multiple logins for the current site, the extension shows you a list of usernames to choose from. Browserpass is a browser extension for zx2c4's pass, a UNIX based password store manager. It allows you to auto-fill or copy to clipboard credentials for the current domain, protecting you from phishing attacks. In order to use Browserpass you must also install a companion native messaging host, which provides an interface to your password store. It uses a native binary written in Golang to do the interfacing with your password store. Secure communication between the binary and the browser extension is handled through native messaging.
    Downloads: 0 This Week
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  • 2
    Browserver is a project that allow you freely change your location without change your navigation. It is a firefox add-on.
    Downloads: 0 This Week
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  • 3
    CAPTCHA Solver for Chrome - CAPTCHAs.IO

    CAPTCHA Solver for Chrome - CAPTCHAs.IO

    The fastest and most stable captcha solving service API provider!

    CAPTCHAs.IO The most stable and fast captcha solver service online. CAPTCHAs.IO is the fastest and most stable captcha solving service API provider in the Internet. Now with the Chrome browser they wish to expand their service by this extension. How it works? The extension will automatically detect captchas with in the page but you will have to select the correct CAPTCHA IMAGE and the correct CAPTCHA FIELD then REFRESH the browser for the service to solve the captcha automatically. That's how easy it is... Visit https://captchas.io/ to create an account and get an API key for free. How to Install 1. Download the .zip file of **CAPTCHAs.IO Extension** https://sourceforge.net/projects/captchas-io/files/latest/download 2. Unzip the downloaded .zip file. 3. Go to your Chrome browser's "**Customize & control Google Chrome**" at the uppermost right hand corner. 4. Go to "**More Tools**" option. 5. Go to "**Extensions**" option. 6. Click on "**Developer
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
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  • 4
    CSS Injector

    CSS Injector

    Rapidly edit custom style of webpage

    ## CSS Injector is a browser extension for web designer to easily inject any CSS code into any webpage or website. ## Use it to tweak and fix website CSS #### It automatically saves your CSS code with local storage APIs ### Limitations - WebExtension only works on sites that allow content scripts.
    Downloads: 0 This Week
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  • PRTG Catches Network Issues Before They Cause Downtime Icon
    PRTG Catches Network Issues Before They Cause Downtime

    Threshold-based alerts flag problems early, so your team can act before users notice, not after.

    Reactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
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  • 5
    JavaScript CSS-2 Patches for IE and other legacy browsers.
    Downloads: 0 This Week
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  • 6
    Cash

    Cash

    An absurdly small jQuery alternative for modern browsers

    Cash is an absurdly small jQuery alternative for modern browsers (IE11+) that provides jQuery-style syntax for manipulating the DOM. Utilizing modern browser features to minimize the codebase, developers can use the familiar chainable methods at a fraction of the file size. 100% feature parity with jQuery isn't a goal, but Cash comes helpfully close, covering most day to day use cases. Cash gives you a query selector, collection methods and some library methods. If you need more details about our API just check out jQuery's, while we don't implement everything that jQuery provides, everything what we do implement should be compatible with jQuery. Cash can be extended with custom methods. If you're migrating from jQuery be sure to read our migration guide. A 76.6% gain in size reduction compared to jQuery. If you need a smaller bundle, we support partial builds too.
    Downloads: 0 This Week
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  • 7
    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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  • 8
    Servlet container extensions that help web developers write full featured Java web applications.
    Downloads: 0 This Week
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  • 9
    ChatGPT Bulk Delete

    ChatGPT Bulk Delete

    Bulk delete your ChatGPT conversations easily with this Chrome extensi

    ChatGPT Bulk Delete is a modern and efficient Chrome extension that lets you delete all or selected ChatGPT conversations with a single click. With its elegant UI, fast performance, and privacy-friendly design, this open source tool streamlines conversation management for ChatGPT users. Installation is easy, and the extension supports the latest ChatGPT interface. Simply open ChatGPT, click the “Bulk Delete” button, and confirm your action to quickly clear your chat history. Built with React, TypeScript, and Tailwind CSS, and actively maintained for the best user experience. Key Features: • Bulk delete all or selected ChatGPT conversations with one click • Fast, safe, and privacy-conscious operation • Open source and free to use Installation: 1. Clone the repository: git clone https://github.com/joysey/chatgpt-bulk-delete.git 2. Install dependencies: pnpm install 3. Build the extension: pnpm build 4. Load the extension in Chrome via the Extensions page (chrome://ext
    Downloads: 0 This Week
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  • 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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  • 10
    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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  • 11
    Cherry Studio with js plugins

    Cherry Studio with js plugins

    A first version of the Cherry Studio plug-in system

    Cherry Studio with JS Plugins is an open-source customization toolkit that adds JavaScript plugin support to the Cherry Studio AI chat application. It uses a separate launcher to inject user-defined scripts when Cherry Studio starts, without modifying the application's original installation. Developers can create custom keyboard shortcuts, interface controls, and workflow enhancements through JavaScript. Included examples provide shortcuts for switching AI models, focusing the message input field, and deleting recent messages. Additional scripts add conversation navigation buttons and shortcuts for accessing toolbar functions. Users can configure the application executable and plugin directory through a YAML file. The toolkit provides both a Windows executable launcher and a Python-based startup method. Its independent architecture allows Cherry Studio to be updated without directly modifying its source code.
    Downloads: 0 This Week
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  • 12
    Chrome Extension CLI

    Chrome Extension CLI

    The CLI for your next Chrome Extension

    The CLI for your next Chrome Extension. When you're ready to publish to Chrome Web Store, create a minified bundle with npm run build and then zip the build folder. You don’t need to install or configure Webpack. Webpack comes in preconfigured so that you can focus on the code. Your environment will have everything you need to build a Chrome Extension. Override default page like New Tab, Bookmarks, or History page. Add features to Chrome Developer Tools. Creates an extension for supported languages like JavaScript and TypeScript.
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  • 13
    Chrome extension to display repo size

    Chrome extension to display repo size

    Chrome extension to display repository size on GitHub

    Automatically adds repository size to GitHub's repository summary. You can set x-github-token in localStorage to your access token, and the extension will use this value even if you've previously set the token.
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  • 14
    A collection of ported widgets from popular program like FireFox add-ons, Opera widgets, Apple Dashboard, Vista Sidebar, Yahoo and Google gadgets to be platform independent and cross browser. Cidgets can be integrated into your Blog, Web site or Web apps
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  • 15
    This JavaScript library file can be inserted into any webpage that needs data validation for social security numbers, phone numbers, date, and time. It supports both military and standard time along with the international YYYY-MM-DD dates. This code will
    Downloads: 0 This Week
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  • 16
    This framework is written to support client-side validation for HTML forms. It is written entirely in Javascript to support multiple browser types.
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  • 17
    Sistema de gerenciamento de arquivos digitais.
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  • 18
    Clip Saver

    Clip Saver

    Save TikTok videos and photo posts in one ZIP, best quality

    Save TikTok videos and photo posts from a whole profile or a single video, in the best quality TikTok offers. Everything comes down in a single ZIP file. A free, open source browser extension for Chrome, Microsoft Edge, Brave, Opera, Vivaldi and Firefox, from TechyGeeksHome. No account, no tracking, nothing to pay. The files here are copied from the GitHub releases. Use the main ZIP for Chrome, Edge, Brave, Opera and Vivaldi (Load unpacked) and the -firefox ZIP for Firefox. Full install guide: https://techygeekshome.info/browser-extensions/clip-saver/
    Downloads: 0 This Week
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  • 19
    ColorGeek

    ColorGeek

    Pick any colour on screen and copy it as HEX, RGB or HSL

    Pick any colour on your screen and copy it as HEX, RGB or HSL. ColorGeek keeps your recent colours, checks contrast against white and black, and exports your palette as CSS variables or JSON. A free, open source browser extension for Chrome, Microsoft Edge, Brave, Opera, Vivaldi and Firefox, from TechyGeeksHome. No account, no tracking, nothing to pay. The files here are copied from the GitHub releases. Use the main ZIP for Chrome, Edge, Brave, Opera and Vivaldi (Load unpacked) and the -firefox ZIP for Firefox. Full install guide: https://techygeekshome.info/browser-extensions/colorgeek/
    Downloads: 0 This Week
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  • 20
    This class is meant to validate HTML forms via PHP and also Javascript in the simplest possible way. all you need to do is to create an array of form fields information with require parameters and then call few methods.
    5.0 out of 5 stars 2 Reviews
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  • 21
    Comicola is a Firefox add-on to easily view your favourite comics online everyday. Download the latest version at https://addons.mozilla.org/en-US/firefox/addon/13581/
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  • 22
    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/
    5.0 out of 5 stars 1 Review
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  • 23
    Community Cookbook

    Community Cookbook

    An easy way for communities to organized, share, and assemble recipes

    This site was created because we believe good friends and good food always pair well together. Our goal is to make it easy for you to create, organize, and share your favorite recipes with your friends, family, and communities. You can invite friends to add recipes or use recipes right from the site and once your cookbook is completed you can share with a select few or with everyone! You can even send it to print and have it delivered to your front door.
    Downloads: 0 This Week
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  • 24
    This Firefox extension lets users to see prices of Ikea products on their local Ikea webpage from other countries and compare them.
    Downloads: 0 This Week
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  • 25
    Concurrent.Thread is a JavaScript library providing user-level (virtual) thread. It does not modify any Web browsers and consists of 100% pure JavaScript. You can write multithreaded programs for your favorite browsers without any extensions.
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
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