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.

  • Native Teams: Payments and Employment for International Teams Icon
    Native Teams: Payments and Employment for International Teams

    Expand Your Global Team in 85+ Countries

    With Native Teams’ Employer of Record (EOR) service, you can compliantly hire in 85+ countries without setting up a legal entity. From dedicated employee support and localised benefits to tax optimisation, we help you build a global team that feels truly cared for.
    Learn More
  • Download the most trusted enterprise browser Icon
    Download the most trusted enterprise browser

    Chrome Enterprise brings enterprise controls and easy integrations to the browser users already know and love.

    Chrome Enterprise is ideal for businesses of all sizes, IT professionals, and organizations looking for a secure, scalable, and easily managed browser solution that supports remote work, data protection, and streamlined enterprise operations.
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  • 1
    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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  • 2
    PostCSS

    PostCSS

    A tool for transforming CSS with JavaScript

    PostCSS is a tool for transforming styles with JS plugins. These plugins can do a great number of things: transpile future CSS syntax, lint your CSS, support variables and mixins, and so much more. PostCSS works by taking a CSS file and providing an API to analyze and modify its rules (through its transformation into an Abstract Syntax Tree). The API can then be used by plugins to do a lot of useful things. With PostCSS, you can increase code readability by adding vendor prefixes to CSS rules; convert modern CSS so it's understood by more browsers; and avoid errors in your CSS via stylelint, a modern CSS linter. PostCSS currently has over 200 plugins, and is being used by industry leaders worldwide.
    Downloads: 5 This Week
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  • 3
    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
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  • 4
    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
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  • All Things Performance and Partner Marketing, All in One Place Icon
    All Things Performance and Partner Marketing, All in One Place

    Track calls, leads, and clicks without the manual work

    Automatically tie revenue back to campaigns, channels, publishers, and networks through marketing attribution. Spend less time juggling reports, and more time optimizing for growth by using a single operating solution for partner and performance marketing.
    Learn More
  • 5
    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: 28 This Week
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  • 6
    Aimeos headless distribution

    Aimeos headless distribution

    Aimeos cloud-native, API-first ecommerce headless distribution

    Aimeos Headless is an open-source headless eCommerce distribution built on top of the Laravel framework, designed to provide a fast and scalable API-driven commerce backend. The project exposes a comprehensive REST and GraphQL API that allows developers to build custom storefronts or commerce applications using any frontend technology. Because the platform follows a headless architecture, it separates the commerce logic from the presentation layer, enabling developers to build web, mobile, or progressive web applications while relying on Aimeos for backend functionality. The framework includes a full set of commerce features such as product catalog management, order processing, and customer management while remaining highly customizable. It is designed to scale from small online shops to very large marketplaces and enterprise-level commerce platforms handling massive product catalogs.
    Downloads: 4 This Week
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  • 7
    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: 4 This Week
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  • 8
    Firefox GNOME theme

    Firefox GNOME theme

    A GNOME theme for Firefox

    A GNOME theme for Firefox. This theme follows lastest GNOME Adwaita style. Be aware that this theme might do things that are not supported by upstream Firefox. If you face an issue while using this theme, report it here first or test if it is reproducible in vanilla Firefox. If you are a software distribution maintainer, please do not ship these changes by default to your users unless you made it extremely clear that they are using a modified version of Firefox UI. This is a bunch of CSS code to make Firefox look closer to GNOME's native apps. The master branch of this repo supports the current Firefox stable release 105. Theme versions compatible with older Firefox releases are preserved as git tags. We also have the beta branch for fixes only applicable to the current Firefox beta version.
    Downloads: 4 This Week
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  • 9
    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: 4 This Week
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  • The Most Awarded Employee Time Clock Software Icon
    The Most Awarded Employee Time Clock Software

    For businesses who have employees they need to track time, attendance, or schedule.

    Cloud based time clock solution that pre-populates reports for payroll. Employees can punch in on their desktop or mobile devices. Punching in & out is intuitive for your employees & easy for you to view & export time. Employees can clock in using a browser or our Google, iOS, & Android apps. You can view who's working, their GPS position or even limit where they can punch. We integrate with QuickBooks, ADP, Paychex, & SurePayroll while also offering Excel exports. Advanced features such as PTO Accrual Tracking, Punch Rounding, Job Codes, QR Codes, Automatic Breaks, & SSO are all included in our cloud based time clock.
    Learn More
  • 10
    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: 4 This Week
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  • 11
    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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  • 12
    Magnific Popup

    Magnific Popup

    Light and responsive lightbox script with focus on performance

    Magnific Popup is a responsive lightbox & dialog script with focus on performance and providing best experience for user with any device. You may put any HTML content in each gallery item and mix content types. Three simple popups with different scaling settings. Fits horizontally and vertically, only horizontally, or with no gaps, zoom animation, close icon in top-right corner. If you wish to open the popup only after image is fully loaded, you may preload image via JS. Or use scaled down image instead of thumbnail. Zoom effect works only with images, for now. Animations are added with simple CSS transitions, you can make them look however you wish. Entered data is not lost if you open and close the popup or if you go to another page and then press back browser button. You have full control of what is displayed in popup, align it to any side via CSS, enable or disable scroll on right side of window, whatever.
    Downloads: 4 This Week
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  • 13
    Playwright Skill for Claude Code

    Playwright Skill for Claude Code

    Claude Code Skill for browser automation with Playwright

    Playwright Skill is an open-source plugin designed for Claude Code that enables dynamic browser automation using Playwright through natural language instructions. The tool allows an AI agent to generate, execute, and manage browser automation scripts on demand, rather than relying on predefined workflows or static test scripts. It is structured as a modular skill within the Claude ecosystem, meaning it can be installed as a plugin and invoked automatically when browser automation tasks are required. The system supports a wide range of use cases, including testing web applications, validating user interfaces, automating workflows, and extracting data from websites. One of its key advantages is its ability to generate custom Playwright code tailored to each request, allowing flexible and context-aware automation.
    Downloads: 4 This Week
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  • 14
    Playwright for .NET

    Playwright for .NET

    .NET version of the Playwright testing and automation library

    Playwright for .NET is the official language port of Playwright, the library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. Cross-browser. Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Cross-platform. Test on Windows, Linux, and macOS, locally or on CI, headless or headed. Cross-language. Use the Playwright API in TypeScript, JavaScript, Python, .NET, Java. Test Mobile Web. Native mobile emulation of Google Chrome for Android and Mobile Safari. The same rendering engine works on your Desktop and in the Cloud. Auto-wait. Playwright waits for elements to be actionable prior to performing actions. It also has a rich set of introspection events. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests.
    Downloads: 4 This Week
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  • 15
    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: 4 This Week
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  • 16
    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: 4 This Week
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  • 17
    React Refresh Webpack Plugin

    React Refresh Webpack Plugin

    A Webpack plugin to enable "Fast Refresh"

    An EXPERIMENTAL Webpack plugin to enable "Fast Refresh" (also known as Hot Reloading) for React components. This plugin is not 100% stable. We're hoping to land a v1 release soon, please help us by reporting any issues you've encountered! Ensure that you are using at least the minimum supported versions of this plugin's peer dependencies - older versions, unfortunately, do not contain code to orchestrate "Fast Refresh", and thus cannot be made compatible. For most setups, we recommend integrating using babel-loader. It covers the most use cases and is officially supported by the React team. If you haven't done so, set up your development Webpack configuration for Hot Module Replacement (HMR). This plugin integrates with the most common Webpack HMR solutions to surface errors during development, in the form of an error overlay.
    Downloads: 4 This Week
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  • 18
    chai

    chai

    BDD / TDD assertion framework for node.js

    Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. Chai has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel. Plugins extend Chai's assertions to new contexts such as vendor integration & object construction. Developers can build their own plugins to share with community or use the plugin pattern to DRY up existing tests. You can also use it within the browser; install via npm and use the chai.js file found within the download. Browse our growing directory of custom plugins & vendor integrations to find the best tool for your needs. Chai has an extensive utility belt for plugin developers. Learn how to build your plugins & share.
    Downloads: 4 This Week
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  • 19
    webpack DevServer

    webpack DevServer

    Serves a webpack app and updates the browser on changes

    webpack-dev-server can be used to quickly develop an application. Options that are compatible with webpack-dev-middleware have a key icon next to them. This set of options is picked up by webpack-dev-server and can be used to change its behavior in various ways. When the server is started, there will be a message prior to the list of resolved modules. If you're using dev-server through the Node.js API, the options in devServer will be ignored. Pass the options as a second parameter instead: new WebpackDevServer(compiler, {...}). Be aware that when exporting multiple configurations only the devServer options for the first configuration will be taken into account and used for all the configurations in the array. HTML template is required to serve the bundle, usually it is an index.html file. Make sure that script references are added into HTML, webpack-dev-server doesn't inject them automatically.
    Downloads: 4 This Week
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  • 20
    OpenVRML is a cross-platform VRML and X3D browser and C++ runtime library.
    Downloads: 16 This Week
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  • 21
    AWS Extend Switch Roles

    AWS Extend Switch Roles

    Extend your AWS IAM switching roles by Chrome extension

    Extend your AWS IAM switching roles. You can set the configuration like AWS config format. Switch role history does not remain only five maximum on the AWS Management Console. This extension gives you to show all of the switch roles from a browse menu by loading your AWS configuration. Extend your AWS IAM switching roles by Chrome extension, Firefox add-on, or Edge add-on. Switch role history only stores the last 5 roles (maximum) on the AWS Management Console. This extension shows a menu of switchable roles that you can configure manually. Not support switching between AWS accounts you sign into with AWS SSO or SAML solution providers directly. This extension does not restrict the use of other compatible browsers. The version restrictions are only due to the JavaScript language features used.
    Downloads: 3 This Week
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  • 22
    Bowser

    Bowser

    Bowser is a browser detector

    A small, fast and rich-API browser/platform/engine detector for both browser and node. The library is made to help to detect what browser your user has and gives you a convenient API to filter the users somehow depending on their browsers. Version 2.0 has drastically changed the API. All available methods are on the docs page. Often we need to pick users' browser properties such as the name, the version, the rendering engine and so on. You could want to filter some particular browsers to provide any special support for them or make any workarounds. Settings for any particular OS or platform has more priority and redefines settings of standalone browsers. Thus, you can define OS or platform-specific rules and they will have more priority in the end. More of API and possibilities you will find in the docs folder.
    Downloads: 3 This Week
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  • 23
    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: 3 This Week
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  • 24
    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: 3 This Week
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  • 25
    MetaMask

    MetaMask

    Mobile web browser providing access to websites that use the Ethereum

    MetaMask is a mobile wallet that provides easy access to websites that use the Ethereum blockchain. A crypto wallet & gateway to blockchain apps. Start exploring blockchain applications in seconds. Trusted by over 30 million users worldwide. Available as a browser extension and as a mobile app, MetaMask equips you with a key vault, secure login, token wallet, and token exchange—everything you need to manage your digital assets. MetaMask provides the simplest yet most secure way to connect to blockchain-based applications. You are always in control when interacting on the new decentralized web. MetaMask generates passwords and keys on your device, so only you have access to your accounts and data. You always choose what to share and what to keep private.
    Downloads: 3 This Week
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