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.

  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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  • One Monitoring Tool for IT, OT and Cloud | Free Trial Icon
    One Monitoring Tool for IT, OT and Cloud | Free Trial

    Vendor-agnostic monitoring across on-prem servers, cloud platforms and OT devices, all in one dashboard. No more tool sprawl.

    Modern infrastructure spans data centers, cloud platforms and factory floors, and every blind spot between them is a risk. PRTG supports SNMP, WMI, SSH and other standard protocols to monitor IT, OT and hybrid environments through one customizable dashboard. Build the views your team needs, from network health to application performance, without switching tools. Try PRTG free for 30 days now.
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  • 1
    GitHunt

    GitHunt

    Hunt the most starred projects on any date on GitHub

    React app and Chrome Extension to go through the top project. GitHunt is a react application and a chrome extension that lets you explore the most starred projects on GitHub. Replace the new tab with a list of trending repositories on github belonging to any technology that you chose. You can look through the repositories for any technology of your liking and for any period of time. By default it shows the trending repositories (most starred repositories created in the given period of time) for the last week and as you keep scrolling, you will be presented with the popular repositories of the consecutive past weeks. All you have to do is select how you would like to see the repositories (monthly, weekly or yearly) and the language, it will remember your choice and will show you the trending repositories in that category whenever you will open the new tab.
    Downloads: 0 This Week
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  • 2
    This project implements the Google Maps API and the open source GeoNames project to provide an interactive geocode workshop. You can move the map, enter addresses, etc., and generate a long/lat-based Google Maps link, as well as download a GPS POI file.
    Downloads: 0 This Week
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  • 3
    Googlepedia is a free Firefox extension that displays relevant Wikipedia articles on Google search result pages.
    Downloads: 0 This Week
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  • 4
    Grid Saver

    Grid Saver

    Save Instagram photos, reels and carousels in one ZIP

    Save the photos, reels and carousels from an Instagram profile or a single post in one go, at the best quality Instagram has. 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/grid-saver/
    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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  • 5
    HTML5 Apps for iOS/Android/Desktop

    HTML5 Apps for iOS/Android/Desktop

    HTML5 Apps for iOS/Android and Desktop Browsers

    HTML5 Apps for iOS/Android and Desktop Browsers. All apps are 100% standards-based web apps. Absolutely no external frameworks or plug-ins are required! HTML5 + CSS3 + JavaScript = HTML5 Apps!
    Downloads: 0 This Week
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  • 6
    HTTP Switchboard for Chromium

    HTTP Switchboard for Chromium

    Point & click to forbid/allow any class of requests made by browser

    HTTP Switchboard is a Chromium-extension that lets users take very granular control over the kinds of requests their browser issued: cookies, scripts, images, frames, XHRs, etc., organized by source domain and destination domain, in a matrix interface. Instead of relying solely on curated blocker lists, this tool let you whitelist or blacklist entire classes of requests, per domain, with one-click operations at the intersection of type and domain. Its focus was on privacy and transparency: you could inspect attempted connections, block them entirely, and prevent data from leaving your browser at all. Although the project is now archived and succeeded by other tools (notably uBlock Origin and µMatrix), its design still influences modern request-filtering tools and is a historical reference in browser-privacy architecture. For users who want to understand how fine-grained control over web network activity can be exposed and managed, this repository remains instructive.
    Downloads: 0 This Week
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  • 7
    HULL

    HULL

    Headless Shopify Starter – powered by Next.js + Sanity.io

    HULL is an open-source headless commerce starter template designed to help developers build modern Shopify storefronts using a decoupled architecture. The project combines a Next.js frontend with Shopify as the commerce backend and Sanity.io as a content management system, creating a flexible stack for building custom online stores. By separating the presentation layer from the commerce engine, HULL enables developers to design highly customized user experiences without being restricted by Shopify’s traditional theme system. The template includes integrations that synchronize product data from Shopify into Sanity, allowing developers and content editors to manage storefront content alongside product information. It also leverages modern frontend technologies such as React, Tailwind CSS, and static site generation techniques to improve performance and scalability.
    Downloads: 0 This Week
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  • 8
    HasBlog-ASP (CLASSIC ASP BLOG SCRİPT)
    Asp programlama dili ile yazılmış bir blog scripti
    Downloads: 0 This Week
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  • 9
    Hello Travian
    Project for the Google Chrome extension "hello travian", which is an extension which helps users when playing the game Travian by adding some features. Purpose is to make an extension which makes the life of travian players easier, NOT to cheat.
    Downloads: 0 This Week
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  • 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.
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  • 10
    Helper for GitHub notifications in Gmail

    Helper for GitHub notifications in Gmail

    Open GitHub notifications with shortcuts in Gmail

    A web extension for Chrome and Firefox which adds keyboard shortcuts for opening and muting GitHub notification emails. Mute thread in mail view. It will open a background window to load the mute thread URL, and close itself when done. This only works if you have an active GitHub session. ctrl + return to trigger one the action button when an email is selected using gmail key navigation (when the blue bar appears). Load the extension manually and modify the code accordingly.
    Downloads: 0 This Week
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  • 11
    Using Prototype by prototypejs.org, inspirations from tinyMCE and code pieces from spiffyCal create a JavaScript control which used to be a calendar easy to use, free configurable and work in all browsers which support at least prototype 1.5.0.
    Downloads: 0 This Week
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  • 12
    Historify

    Historify

    Finally a better history with images. - Mozilla Firefox WebExtension

    Historify will store your history with screenshots of visited websites in a gallery. You will definitely need this Add-on if you wish to find websites again that you accidentally closed a while ago. The screenshots will help you to search faster for the website since most people slightly remember what the website looked like. Please be aware that this is still in development and that bugs currently do exist. Neat features will be added soon (e.g. search, visit dates).
    Downloads: 0 This Week
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  • 13
    Provide web-based solution to home accountant. Let accounting charges and gainings for personal uses. System requirements - IIS 5.0, .NET Framework, ASP.NET, MS SQL 2000 (or MSDE)
    Downloads: 0 This Week
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  • 14
    Huntcraft Launcher

    Huntcraft Launcher

    Launcher oficial de Huntcraft world

    Este es el launcher oficial creado por Raiderpoer y distribuido a Huntcraft.
    Downloads: 0 This Week
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  • 15
    A drop-in replacement for HTML TextArea elements providing a WYSIWYG HTML editor as well as "integrations" with application servers such as Zope.
    Downloads: 0 This Week
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  • 16
    Downloads: 0 This Week
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  • 17
    To give Firefox the unfortunate but desirable compatibility of (Microsoft) Internet Explorer (IE), using a (Mozilla) Firefox extension/plugin. I'm not trying to insert an IE object in a Firefox tab, no, no, no... Any support is welcome
    Downloads: 0 This Week
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  • 18
    If and only if visitor's web browser is IE 6 or below, display a close-able little notice bar on the top of the web page, to notify user to upgrade to a better browser.
    Downloads: 0 This Week
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  • 19
    This project has now moved to googlecode: http://code.google.com/p/ie7-js/
    Downloads: 0 This Week
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  • 20
    IEPolyFills

    IEPolyFills

    make IE modern again via this ActiveX plugin.

    this is a bunch of open-source polyfills for Internet Explorer, more specifically versions 10 and 11, that I moved from the GitHub repo at github.com/dmitrijselyanin/iepolyfills, which also belongs to me. other than using C# for the boilerplate while the original boilerplate is in C++, shipping actual binaries and using Mercurial rather than Git for source control, this is the same project.
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
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  • 21
    IMDb Preview is a Firefox extension that allows you to preview movie & actor posters when hovering over their IMDb links.
    Downloads: 0 This Week
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  • 22
    IPFS Companion

    IPFS Companion

    Browser extension that simplifies access to IPFS resources on the web

    IPFS Companion allows you to interact with your IPFS node and the extended IPFS network through your browser. The add-on is available for Brave, Chrome, Edge, Firefox, and Opera. It enables support for ipfs addresses, automatically loads websites and file paths from an IPFS gateway, allows you to easily import and share a file with IPFS, and more. IPFS Companion works in tandem with an IPFS node running on your local machine, so make sure you have a node installed before installing this add-on. The easiest way to install IPFS Companion is through your browser's add-on store. Make sure you have IPFS installed (opens new window)on your computer as well. Because IPFS Companion (in its standard configuration) talks to your computer's local IPFS node to work its browser magic, you'll need to have IPFS running on your computer, too.
    Downloads: 0 This Week
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  • 23
    IPFS Web UI

    IPFS Web UI

    A frontend for an IPFS node

    A web interface to IPFS, shipped with Kubo, and ipfs-desktop. Check on your node stats, explore the IPLD powered merkle forest, see peers around the world and manage your files, without needing to touch the CLI. When working on the code, run an ipfs daemon, the local dev server, the unit tests, and the storybook component viewer and see the results of your changes as you save files. If you need to run IPFS in a Docker container, you can still have Web UI available by exposing both the Gateway and Web UI ports. The end-to-end tests (E2E) test the full app in a headless Chromium browser. They spawn real IPFS node for HTTP API and a static HTTP server to serve the app. The purpose of those tests is not being comprehensible, but act as a quick regression and integration suite.
    Downloads: 0 This Week
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  • 24
    iafw is a cross browser and object-oriented framework that allows developers to quickly develop web pages that just use html and javascript.
    Downloads: 0 This Week
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  • 25
    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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