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.

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Get Started Free
  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
    Start Free Trial
  • 1
    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
    Last Update:
    See Project
  • 2
    This framework is written to support client-side validation for HTML forms. It is written entirely in Javascript to support multiple browser types.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Sistema de gerenciamento de arquivos digitais.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Clip and Share

    Clip and Share

    Clip and Share your world! Social sharing made easy.

    Clip and Share your world with the greatest of ease using this extension for Google Chrome! With just a couple of clicks, you can share content to social networks of your choice without having to mess with copying and pasting links, saving and uploading photos, or copying the exact text of an interesting quote only to find that it doesn't paste properly. Clip and Share makes sharing content online ENJOYABLE and QUICK! The following networks are supported by Clip and Share: * Facebook * Twitter * Tumblr * Google+ * MySpace * Reddit * StumbleUpon * Digg * Delicious * LinkedIn Clip and Share is NOT affiliated in any way with any of the above networks. It is built on existing public frameworks using proprietary software in order to make life a little bit easier.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 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
  • 5
    Cockpit Next

    Cockpit Next

    Add content management functionality to any site

    Cockpit is an open-source headless content management system designed to add flexible content management functionality to websites, applications, and digital platforms. The system provides a lightweight backend where developers can create custom content models and manage structured data without imposing a specific front-end framework. Because Cockpit follows an API-first architecture, content can be delivered through REST or GraphQL APIs to any application, including websites, mobile apps, and static site generators. The platform is designed to be simple to install and can be hosted on standard PHP environments with minimal configuration. Developers can create collections, singletons, and content trees to organize structured data according to the needs of their project. Cockpit also supports extensions and add-ons that expand the system with additional functionality such as search, authentication, or localization features.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    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
    Last Update:
    See Project
  • 8
    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
    Last Update:
    See Project
  • 9
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
    Try it free
  • 10
    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
    Last Update:
    See Project
  • 11
    Content Generator for Sketch

    Content Generator for Sketch

    Sketch app plugin for generating dummy data such as avatars and names

    Content generator allows you quickly create dummy data such as avatars, names, geo location data etc. You can create a custom string by combining any of these options, plain text (example: banana), random number from range (example: [0-20] ), random item from an array (example: [banana~apple~grapes] ). In Sketch app use Plugins\Content Generator\Images\Custom plugin to specify path to your own folder with images. Installation via Sketch Plugin Manager, in the 'Catalog' tab of the Sketch Plugin Manager window search for 'Content Generator'. More types of data, fetch content directly from different online sources, easier extensibility.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Convert and Paste is a Firefox add-on to allow modification of clipboard data before it is pasted into the browser.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Cordova GoogleMaps

    Cordova GoogleMaps

    Google Maps plugin for Cordova

    This plugin displays Google Maps in your application. This plugin uses these libraries for each platforms. The Google Play Services SDK version. You need to specify the same version number with all other plugins. Check out the latest version. This plugin requires the Android support library v4. The minimum version is 24.1.0. This message is displayed when your application requests location permission for only necessary times. Google Maps JavaScript API v3 works on any platforms, but it does not work if device is offline. In Android and iOS applications, this plugin displays native Google Maps views, which is faster than Google Maps JavaScript API v3. And it even works if the device is offline. In Browser platform, this plugin displays JS map views (Google Maps JavaScript API v3). It should work as PWA (progressive web application), but the device has to be online.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Critters

    Critters

    A Webpack plugin to inline your critical CSS and lazy-load the rest

    It's a little different from other options because it doesn't use a headless browser to render content. This tradeoff allows Critters to be very fast and lightweight. It also means Critters inlines all CSS rules used by your document, rather than only those needed for above-the-fold content. Critters' design makes it a good fit when inlining critical CSS for prerendered/SSR'd Single Page Applications. It was developed to be an excellent compliment to the prerender-loader, combining to dramatically improve first paint time for most Single Page Applications. Import Critters into your Webpack configuration and add it to your list of plugins. That's it! Now when you run Webpack, the CSS used by your HTML will be inlined and the imports for your full CSS will be converted to load asynchronously. Create a Critters plugin instance with the given options.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    This is a JavaScript library which gives the ability to use cryptographic functionality abstracted of available technologies on the browser side. It executes a cryptographic function with the fastest technology including Java, JavaScript and Flash.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Custom Form Elements unites all efforts in the web to enhance web-based XHTML forms in terms of style, usability and accessibility by using Javascript and/or CSS. Custom Form Elements work cross-browser, currently supporting most A-grade browsers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    A DHTML Appliction Fabricable Framework to make a windows world in the browser.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 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
    Last Update:
    See Project
  • 19
    DHTML-Window-Manager is a free Window-Manager inside a Webbrowser. Due to lots of other great free Javascript-Libraries, that allready cover such things like Management of Windows inside the Browser this project isn't maintained any more.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Dadda

    Dadda

    Dadda Chrome word translation extension

    A good-looking Chrome word translation (Sogou) plug-in, with its own vocabulary book and toast word memory, which can be synchronized with Youdao and scallop words. Beautiful word translation plugin/ Let you recite words on Chrome (can be synchronized to scallops, your words). After the "Scallop Word Synchronization" function is enabled, the favorite vocabulary will be synchronized to the scallop word, but you must log in to the web version of scallop, and vice versa. There are five stages after words are included in the vocabulary book, corresponding to red/orange/yellow/blue/green. Toast intervals for each stage are 5 minutes, 30 minutes, 1 hour, 6 hours, 12 hours. After each toast playing the word, clicking the toast body or clicking the close button will be regarded as pushing the word to the next stage.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Date plug in for prototype javascript library. This library extends javascript's date object and implements several methods. Date arithmetic, date utility methods, week days and weekend calculations implemented.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Differencify

    Differencify

    Differencify is a library for visual regression testing

    Differencify is a library for visual regression testing via comparing your local changes with reference screenshots of your website. It is built on top of chrome headless using Puppeteer.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    This script disables the right click on an entire web page or on selected images of a web page.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Distpicker

    Distpicker

    Plugin for picking provinces, cities and districts of China

    Distpicker is a lightweight jQuery plugin that provides a cascading dropdown selector for regions such as country, state/province, and city, making it easy to build structured address forms without manual data entry. When initialized on a form, Distpicker automatically populates each related <select> element with hierarchical location data and updates them in response to user selections, ensuring users only see relevant regional options. For example, choosing a country filters the state list, and choosing a state filters the city list, reducing errors and improving the user experience on profile or checkout forms. The plugin is customizable in terms of initial values, placeholder text, and which dropdowns to include, and it also supports dynamic updates if you need to reset or reload region data based on custom logic. It’s especially handy for applications that require structured address input across multiple locales without building and maintaining your own region datasets.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Docs Online Viewer

    Docs Online Viewer

    Easily open documents/files of any format you found on the web

    Docs Online Viewer is a Firefox add-on that allows you to easily open documents/files of any format you found on the web (PDF, DOC, DOCX, XLS, PPT, RTF, ODT, ODP, CSV etc.) using Google Docs and Zoho Viewer. This way, Docs Online Viewer eliminates the need to open online docs in an external application. Docs Online Viewer is cross-platform and it works on Mac OS X, Windows and Linux. This script reduces the need for additional plugins required to open documents such as Acrobat reader plugin, etc. This is light weight on your system compared to using third party softwares, reducing browser / system crashes and load on your system.
    Downloads: 0 This Week
    Last Update:
    See Project
Monday.com Logo