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.

  • The AI workplace management platform Icon
    The AI workplace management platform

    Plan smart spaces, connect teams, manage assets, and get insights with the leading AI-powered operating system for the built world.

    By combining AI workflows, predictive intelligence, and automated insights, OfficeSpace gives leaders a complete view of how their spaces are used and how people work. Facilities, IT, HR, and Real Estate teams use OfficeSpace to optimize space utilization, enhance employee experience, and reduce portfolio costs with precision.
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  • Loan management software that makes it easy. Icon
    Loan management software that makes it easy.

    Ideal for lending professionals who are looking for a feature rich loan management system

    Bryt Software is ideal for lending professionals who are looking for a feature rich loan management system that is intuitive and easy to use. We are 100% cloud-based, software as a service. We believe in providing our customers with fair and honest pricing. Our monthly fees are based on your number of users and we have a minimal implementation charge.
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  • 1
    Browserless

    Browserless

    The headless Chrome/Chromium driver on top of Puppeteer

    Browserless is an open-source headless browser automation library and service built on top of Puppeteer that simplifies the process of running and scaling Chromium-based browser tasks in production environments. It provides a high-level API for interacting with headless Chrome, allowing developers to perform operations such as generating PDFs, capturing screenshots, extracting text or HTML, and automating web navigation. The project is designed to act as a production-ready abstraction layer over Puppeteer, offering improved reliability, error handling, and scalability for real-world applications. Browserless includes built-in optimizations such as request blocking, automatic retries, and sensible defaults that improve performance when processing web pages. It can be used as a standalone library, a command-line tool, or a hosted API service that scales browser instances on demand.
    Downloads: 6 This Week
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  • 2
    FlyingFox

    FlyingFox

    An opinionated set of configurations for firefox

    An opinionated set of configurations for Firefox. Some of the code, namely urlbar and popups CSS are slightly edited versions of the ones from Material Fox. Takes up the least space, and expands when hovered. Permanently expanded. Can be toggled with a shortcut. ( ctrl+shift+a > TST > right top cogwheel > extension shortcuts) Supported extension icons are changed, and a mask(generated for custom color with webapp) is applied to unsupported ones to blend them better with rest of the theme. Switch window-controls to right. Along with vertical tabs, traditional horizontal tabs are also included.
    Downloads: 6 This Week
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  • 3
    I Still Don't Care About Cookies

    I Still Don't Care About Cookies

    Debloated fork of the extension "I don't care about cookies"

    Debloated fork of the extension "I don't care about cookies". Get rid of cookie warnings from almost all websites! This extension has been acquired by Avast and simply I don't trust Avast with my data. Also having it on Github allows us to improve the code & add support for websites faster. The EU regulations require that any website using tracking cookies must get user's permission before installing them. These warnings appear on most websites until the visitor agrees with the website's terms and conditions. Imagine how irritating that becomes when you surf anonymously or if you delete cookies automatically every time you close the browser. This add-on will remove these cookie warnings from almost all websites! You can report any website which still warns you about cookies: just click 'Report a cookie warning' from the extension menu (the brown cookie image next to your address bar).
    Downloads: 6 This Week
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  • 4
    Melt UI

    Melt UI

    A set of headless, accessible component builders for Svelte

    Melt UI is an open-source headless component builder library created specifically for the Svelte ecosystem, designed to help developers construct accessible and highly customizable user interface components. Rather than providing fully styled widgets, the library focuses on supplying the behavioral logic and accessibility patterns needed to build UI components while allowing developers to control the visual appearance. Melt UI introduces a builder-based architecture where component logic is encapsulated in reusable primitives that can be attached to any HTML element or custom component. The project strongly emphasizes accessibility and follows WAI-ARIA standards to ensure consistent keyboard navigation and screen reader compatibility. It also integrates seamlessly with SvelteKit and TypeScript, making it suitable for modern web development workflows.
    Downloads: 6 This Week
    Last Update:
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  • MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design. Icon
    MicroStation by Bentley Systems is the trusted computer-aided design (CAD) software built specifically for infrastructure design.

    Microstation enables architects, engineers, and designers to create precise 2D and 3D drawings that bring complex projects to life.

    MicroStation is the only computer-aided design software for infrastructure design, helping architects and engineers like you bring their vision to life, present their designs to their clients, and deliver their projects to the community.
    Learn More
  • 5
    NProgress.js

    NProgress.js

    A progress bar with realistic trickle animations

    NProgress.js is a nanoscopic progress bar. Featuring realistic trickle animations to convince your users that something is happening! For Ajax'y applications. Inspired by Google, YouTube, and Medium. Fully customizable animations, percentage and progress settings. Add progress to your Ajax calls and make a fancy loading bar even without Turbolinks/Pjax. Create a loading bar, set a percentage, increment it as much as you like, make it complete the progress and customize it.
    Downloads: 6 This Week
    Last Update:
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  • 6
    Puppeteer

    Puppeteer

    Headless Chrome Node.js API

    Puppeteer is a headless Node library that provides a high level API for controlling Chromium or Chrome over the DevTools protocol. It requires zero setup and comes bundled with the Chromium version most suited to it. Puppeteer is headless by default, making it fast to run. However, it can also be set to run full or non-headless Chrome or Chromium, simply set the headless option when launching a browser. Many of the things you can do manually in the browser, you can also do with Puppeteer such as generate page screenshots and PDFs, crawl a Single-Page Application, test Chrome extensions and more.
    Downloads: 6 This Week
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  • 7
    Return YouTube Dislike

    Return YouTube Dislike

    Chrome extension to return youtube dislikes

    Return YouTube Dislike is an open-source extension that returns the YouTube dislike count. Available for Chrome and Firefox as a Web Extension. Also available for other browsers as JS Userscript. Additionally, the dislike field in the YouTube API was removed on December 13th, 2021, removing any ability to judge the quality of content before watching. With the removal of dislike stats from the YouTube API, our backend switched to using a combination of scraped dislike stats, and estimates extrapolated from extension user data. None existing YouTube ID will return status code 404 "Not Found". Wrong formed YouTube ID will return 400 "Bad Request".
    Downloads: 6 This Week
    Last Update:
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  • 8
    OWASP Mantra - Security Framework

    OWASP Mantra - Security Framework

    Free and Open Source Browser based Security Framework

    OWASP Mantra - Free and Open Source Browser based Security Framework, is a collection of free and open source tools integrated into a web browser, which can become handy for penetration testers, web application developers, security professionals etc.
    Downloads: 28 This Week
    Last Update:
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  • 9
    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: 33 This Week
    Last Update:
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  • Award-Winning Medical Office Software Designed for Your Specialty Icon
    Award-Winning Medical Office Software Designed for Your Specialty

    Succeed and scale your practice with cloud-based, data-backed, AI-powered healthcare software.

    RXNT is an ambulatory healthcare technology pioneer that empowers medical practices and healthcare organizations to succeed and scale through innovative, data-backed, AI-powered software.
    Learn More
  • 10
    ClearURLs

    ClearURLs

    ClearURLs is an add-on based on the new WebExtensions technology

    ClearURLs is an add-on based on the new WebExtensions technology and is optimized for Firefox and Chrome-based browsers. This extension will automatically remove tracking elements from URLs to help protect your privacy when browsing through the internet. For this purpose, we use a large catalog of rules, which is actively maintained by us and the community. Many websites use tracking elements in the URL to mark your online activity. All that tracking code is not necessary for a website to be displayed or work correctly and can therefore be removed, that is exactly what ClearURLs does. Prevents Google from rewriting the search results (prevents the insertion of tracking code). Prevents Yandex from rewriting the search results (prevents the insertion of tracking code). Prevents tracking injection over history API.
    Downloads: 5 This Week
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  • 11
    International Telephone Input

    International Telephone Input

    Plugin for entering and validating international telephone numbers

    A JavaScript plugin for entering and validating international telephone numbers. It adds a flag dropdown to any input, detects the user's country, displays a relevant placeholder and provides formatting/validation methods. Lots of initialization options for customization, as well as public methods for interaction. The user types their national number and the plugin gives you the full standardized international number. Navigate the country dropdown by typing a country's name, or using up/down keys. Automatically set the input placeholder to an example number for the selected country. Automatically select the user's current country using an IP lookup. Access the country data to create a separate country dropdown for an address form, and then listen for change events to keep the two dropdowns in sync. Use Twilio's API to build phone verification, SMS 2FA, appointment reminders, marketing notifications and so much more.
    Downloads: 5 This Week
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  • 12
    Librefox

    Librefox

    Firefox with privacy enhancements

    This project aims at enforcing the privacy and security of Firefox without forking the project. Librefox uses more than 500 privacy/security/performance settings, patches, Librefox-Addons (optional) and a cleaned bundle of Firefox (updater, crashreporter and Firefox's integrated addons that don't respect privacy are removed). Updated browser: because this project is not a fork, it is kept updated with the latest Firefox version. Limit internet access for extensions (firewall-test-feature). IJWY (I Just Want You To Shut Up): embedded server links and other calling home functions are removed (zero unauthorized connection by default). Settings protection: important settings are enforced/locked within mozilla.cfg and policies.json, those settings cannot be changed by addons/updates/Firefox or unwanted/accidental manipulation; To change those settings you can easily do it by editing mozilla.cfg and policies.json.
    Downloads: 5 This Week
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  • 13
    LinkifyJS

    LinkifyJS

    JavaScript plugin for finding links in plain-text

    A JavaScript library for detecting and converting URLs, email addresses, and hashtags into clickable links in text content.
    Downloads: 5 This Week
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  • 14
    MagicMirror²

    MagicMirror²

    Modular smart mirror platform with a list of installable modules

    MagicMirror² is Open Source, free and maintained by a big group of enthusiasts. Got a nice idea? Send us a pull request and become a part of the big list of contributors. The core of MagicMirror² contains a strong API which allows 3rd party developers to build additional modules. Modules you can use. Modules you can develop. Read our extensive documentation to find out everything you want to know about the MagicMirror² project. The full API description allows you to build your own modules. On the forum you will find a big list of MagicMirror² enthusiasts. Share your ideas, ask your questions and get support. The perfect place for you to start. MagicMirror² has an extensively documentated API. It allows you to built your own module backed by a powerful backend. Check out the API documentation for more information and start developing today.
    Downloads: 5 This Week
    Last Update:
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  • 15
    Qogir Gtk Theme

    Qogir Gtk Theme

    Qogir is a flat Design theme for GTK

    Qogir is a flat Design theme for GTK 3, GTK 2 and Gnome-Shell which supports GTK 3 and GTK 2-based desktop environments like Gnome, Unity, Budgie, Cinnamon Pantheon, XFCE, Mate, etc. In Gnome 42 can not use the Qogir-dark theme, so I renamed all dark themes to Dark, so you need to remove all old themes and reinstall the last version. Arc is a flat theme with transparent elements for GTK 3, GTK 2 and GNOME Shell which supports GTK 3 and GTK 2 based desktop environments like GNOME, Unity, Budgie, Pantheon, Xfce, MATE, etc.
    Downloads: 5 This Week
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  • 16
    ZetaJS

    ZetaJS

    JS wrapper for ZetaOffice in the browser

    The zeta.js library provides the facilities to run an instance of ZetaOffice integrated into your web site, allowing you to control it with JavaScript code via the LibreOffice UNO technology. Use cases range from an in-browser office suite that looks and feels just like its desktop counterpart, to fine-tuned custom text editing and spreadsheet capabilities embedded in your website, to a headless zetajs instance that does document conversion in the background.
    Downloads: 5 This Week
    Last Update:
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  • 17
    bootstrap-select

    bootstrap-select

    The jQuery plugin that brings select elements into the 21st century

    The jQuery plugin that brings select elements into the 21st century with intuitive multiselection, searching, and much more. Now with Bootstrap 4 support. Bootstrap-select requires jQuery v1.9.1+, Bootstrap’s dropdown.js component, and Bootstrap's CSS. If you're not already using Bootstrap in your project, a precompiled version of the Bootstrap v3.4.1 minimum requirements can be downloaded. If using bootstrap-select with Bootstrap v4+, you'll also need Popper.js. For all of Bootstrap v4's requirements, see Getting started. A precompiled version of the requirements will be made available in an upcoming release of bootstrap-select. Bootstrap 4 only works with bootstrap-select v1.13.0+. By default, bootstrap-select automatically detects the version of Bootstrap being used. However, there are some instances where the version detection won't work.
    Downloads: 5 This Week
    Last Update:
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  • 18
    Google Unlocked

    Google Unlocked

    Google Unlocked browser extension uncensor google search results

    Google Unlocked is an open-source browser extension, which unlocks hidden google search results. The extension scans hidden links that were censored on Google search results due to complaints. The tool scans those complaints and extracts the links from them, puts the links back into Google results, all in a matter of seconds. The extension was taken down by Google from the Chrome store. Please use manual install. Download the latest zip release from Google Unlocked repository releases. Extract the zip file to a permanent path (Chrome will need to load it every time it restarts). Open Chrome and go to chrome://extensions/ and check the box for Developer mode in the top right. Click the Load unpacked extension button and select the unzipped folder for your extension to install it. After installing the extension, every time you Google a keyword, it will transparently scan the hidden URLs and injects them at the bottom of the page.
    Downloads: 4 This Week
    Last Update:
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  • 19
    JavaScript Cookie

    JavaScript Cookie

    A simple, lightweight JavaScript API for handling browser cookies

    A simple, lightweight JavaScript API for handling cookies which works in all browsers and accepts any character. It is heavily tested, has no dependency, supports ES modules and supports AMD/CommonJS. It is RFC 6265 compliant, has an useful Wiki, and enables custom encoding/decoding. More than 800 bytes gzipped! This project is RFC 6265 compliant. All special characters that are not allowed in the cookie-name or cookie-value are encoded with each one's UTF-8 Hex equivalent using percent-encoding. The only character in cookie-name or cookie-value that is allowed and still encoded is the percent % character, it is escaped in order to interpret percent input as literal. Please note that the default encoding/decoding strategy is meant to be interoperable only between cookies that are read/written by js-cookie. To override the default encoding/decoding strategy you need to use a converter.
    Downloads: 4 This Week
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  • 20
    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: 4 This Week
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  • 21
    Mist Browser

    Mist Browser

    Mist. Browse and use Ðapps on the Ethereum network.

    The Mist browser is the tool of choice to browse and use Ðapps. If you want to install the app from a pre-built version on the release page, you can simply run the executable after download. For updating, simply download the new version and copy it over the old one (keep a backup of the old one if you want to be sure). In order to install from .zip files, please install libgconf2-4 first. Once a Mist version is released the Meteor frontend part is bundled using the meteor-build-client npm package to create pure static files. For development we start the interface with a Meteor server for auto-reload etc. Client binaries (e.g. geth) specified in clientBinaries.json will be checked during every startup and downloaded if out-of-date, binaries are stored in the config folder. You can pass command-line options directly to Geth by prefixing them with --node- in the command-line invocation.
    Downloads: 4 This Week
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  • 22
    OverlayScrollbars

    OverlayScrollbars

    A javascript scrollbar plugin which hides native scrollbars

    A javascript scrollbar plugin that hides native scrollbars, provides custom styleable overlay scrollbars and keeps the native functionality and feeling. The plugin combines the features of native scrolling (e.g. hotkeys, speed, smoothness, touch support etc.) and custom HTML & CSS. It does not replace the native scrollbars, it just hides them to guarantee 100% native scrolling. It also provides additional and highly customizable DOM elements to style your own scrollbars. To check how flexible the styling is, take a look at the examples in the styling demo. Textarea elements have extended support. Dependent on your options, textures can have dynamic width and height. This means the size of the text area is dependent of its content. For more information please read the documentation to the textarea options or check out the textarea demo. No-auto-wrapping (wrap="off") textures are also supported.
    Downloads: 4 This Week
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  • 23
    SystemJS

    SystemJS

    Dynamic ES module loader

    SystemJS is a hookable, standards-based module loader. It provides a workflow where code written for production workflows of native ES modules in browsers (like Rollup code-splitting builds), can be transpiled to the System.register module format to work in older browsers that don't support native modules, running almost-native module speeds while supporting top-level await, dynamic import, circular references and live bindings, import.meta.url, module types, import maps, integrity and Content Security Policy with compatibility in older browsers back to IE11. SystemJS allows to write and use modular javacsript code that relies on ECMAScript 6 import and export statements. One good example is moment.js library, which started publishing ECMAScript 6 source code on npm since 2.10.0 release of moment.js. SystemJS requries a transpiler to compile ECMAScript 6 javacsript into a code that could be run in current versions of browsers and node.js.
    Downloads: 4 This Week
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  • 24
    Web-Maker

    Web-Maker

    A blazing fast & offline frontend playground

    Web-Maker is an offline playground for your web experiments. Something like CodePen or JSFiddle, but much more faster and works offline because it runs completely on your system. Supports Preprocessors: HTML (Pug & Markdown), CSS (SCSS, LESS & Stylus, Atomic CSS) & JavaScript (ES6, TypeScript & CoffeeScript). Hi! I am Kushagra Gour. Web Maker is a free and open-source project. To keep me motivated for working on such open-source and free side projects, I have launched a Patreon campaign. Your pledge, no matter how small, will act as an appreciation towards my work and keep me going forward making Web Maker more awesome. Very easily accessible. Simply open a new tab in Chrome! (in chrome extension only). Capture preview screenshot (in Chrome extension only). Multiple layouts to choose from. Capture preview screenshot (in Chrome extension only). Save as HTML file. Edit in CodePen.
    Downloads: 4 This Week
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  • 25
    passff

    passff

    zx2c4 pass manager extension for Firefox, Chrome and Opera

    zx2c4 pass management extension for Mozilla Firefox. Pending Chrome port. Official signed version can be found on the Mozilla add-on page. This extension will allow you to access your zx2c4 pass repository directly from your web browser. You can choose to automatically fill and submit login forms if a matching password entry is found. Add-on that allows users of the unix password manager 'pass' to access their password store from Firefox. PassFF allows users of the unix password manager pass (see below) to access their password repository directly from Firefox. PassFF can be configured to auto-fill and auto-submit login forms when a matching password entry is found.
    Downloads: 4 This Week
    Last Update:
    See Project
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