Open Source Browsers
Sort By:
Browsers
View 110 business solutionsBrowse free open source Browsers and projects for Mobile Operating Systems and Mac below. Use the toggles on the left to filter open source Browsers by OS, license, language, programming language, and project status.
-
Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
-
Try Google Cloud Risk-Free With $300 in CreditUse your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
-
1
Betterfox
Firefox user.js for optimal privacy and security
Betterfox is an opinionated configuration profile for Mozilla Firefox designed to improve everyday web browsing by making the browser faster, more private, and more secure without relying on external add-ons or third-party code. Rather than being a separate browser, it consists of a curated set of preference tweaks (user.js settings) that users apply to their Firefox profile to optimize performance and harden privacy settings. The project focuses on a minimal-impact, maximum-effect approach, removing unnecessary background services, reducing fingerprinting, and tightening security defaults while trying to keep sites usable. Betterfox recommends pairing these settings with essential extensions like ad blockers and DNS-level protections to achieve a well-rounded browsing experience. Because the preferences are text-based and version controlled, users can review and customize them to meet their own balance of privacy and convenience. -
2
hosts
Consolidate and extend hosts files from several well-curated sources
Consolidating and extending hosts files from several well-curated sources. You can optionally pick extensions to block pornography, social media, and other categories. The unified hosts file is optionally extensible. Extensions are used to include domains by category. Currently, we offer the following categories: fakenews, social, gambling, and porn. Extensions are optional, and can be combined in various ways with the base hosts file. The combined products are stored in the alternates folder. Data for extensions are stored in the extensions folder. You manage extensions by curating this folder tree, where you will find the data for fakenews, social, gambling, and porn extension data that we maintain and provide for you. Create an optional blacklist file. The contents of this file (containing a listing of additional domains in hosts file format) are appended to the unified hosts file during the update process. A sample blacklist is included, and may be modified as you need. -
3
FastClick
Easy-to-use library to remove click delays on browsers with touch UIs
FastClick is a simple, easy-to-use library for eliminating the 300ms delay between a physical tap and the firing of a click event on mobile browsers. The aim is to make your application feel less laggy and more responsive while avoiding any interference with your current logic. FastClick is developed by FT Labs, part of the Financial Times. Note: As of late 2015 most mobile browsers - notably Chrome and Safari - no longer have a 300ms touch delay, so fastclick offers no benefit on newer browsers, and risks introducing bugs into your application. Consider carefully whether you really need to use it. The library has been deployed as part of the FT Web App. FastClick doesn't attach any listeners on desktop browsers. -
4
Jasmine Comic
A comic browser, supports Android / iOS / MacOS / Windows / Linux
A comic browser that supports Android/iOS/MacOS/Windows/Linux. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
-
5
XML Viewer Plus
A powerful XML Viewer - add-on for browser Firefox
A powerful XML Viewer, supports text/regex and jQuery/CSS, XPath selectors ==== Release 1.2.6 - 17.06.2019 - Added utf-8 encode for xml viewer ==== Get your XML Editor and Validator on Play Store > https://play.google.com/store/apps/details?id=com.ulm.xmleditor ==== ## Libraries and techs used 1. `Vue` 2. `Vuex` 3. `lodash/debounce` 4. `jQuery` 5. `document.querySelectorAll` 6. `document.evaluate` for `XPath` 7. `bestzip` for packaging ### Limitations - WebExtension only works on sites that allow content scripts. -
6
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. -
7
MeanOS
The smallest and the most powerful operating system.
The first decentralized, artificially intelligent, MEAN.js stack, operating system. Mean OS is the only operating system hosted anonymous using a P2P network and a suite of non-standard in-browser delivery mechanisms. Mean OS is specifically designed to support both Brave and Tor but is compatible with all other major browsers. Mean OS is Proud to be a BRAVE and TOR supporter, be free!! -
8
oas.lpu-tool
This is just a tool to help students view their results and other deta
This is a chrome extension that helps you to view your result details, download answers, view personal info and view recently attempted tests. extension is not affiliated with LPU. This is just a tool to help students view their results and other details. -
9
pinvault-pro-extension
AI-powered browser extension for bulk downloading Pinterest images wit
PinVault Pro is a professional-grade browser extension that revolutionizes Pinterest image downloading with AI-powered technology. The extension provides intelligent bulk selection, auto-scroll functionality, and maintains HD quality downloads while respecting Pinterest's terms of service. 🎯 Core Features: • Visual checkbox overlays on Pinterest images for intuitive selection • AI-powered auto-scroll with smart content detection • Bulk download capabilities with real-time progress tracking • HD quality preservation in original resolution • Modern glassmorphism interface design • Privacy-focused architecture with no external servers • Cross-browser compatibility (Firefox, Chrome, Edge, Opera) • Real-time synchronization between popup and sidebar interfaces 🌍 Universal Browser Support: • Firefox: Official Mozilla Add-ons Store approval (61.4 KB package) • Chrome/Edge: Manifest V3 compatible (60.0 KB package) • Opera: Manifest V3 compatible (60.3 KB package) -
Full-stack observability with actually useful AI | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
-
10
A11yWidget
Accessibility Toolbox
## Accessibility Widget - v0.3 It is a simple accessibility add-on for browser Firefox without dependencies that allows users with disabilities easy and convenient way to browse most websites ### Supported Languages English by default, Hebrew and Russian. These languages are auto-detected by the browser ### Future implementations - Option page to set position of widget and I hope many other interesting components... -
11
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. -
12
Instant Ad-Close Add-on
Simple interface for advertising blocking via the webRequest APIs
Simple but powerful ad-blocking extension for your Browser; the main goals are simplicity of implementation and performance. --- Release 0.6.0 - Added some useful scripts on the web page to improve the security of links and forms --- Once installed, an icon should appear in your toolbar. Red means blocking is enabled, dark grey means disabled; click the icon to toggle. Preferences to customize the URI filters it uses. Details ------- This extension can only block external requests (images, Flash, XHR) via the URL patterns that you can set in the extension's preferences. It won't remove ad content that is part of the actual text of the HTML page. Through the extension options settings you also can hide private addresses from WebRTC/ICE/STUN. ========= To run and build browser extension from cmd or terminal type: - npm install --global web-ext - cd my/path/folder/InstantAd-Close - web-ext run to debug - web-ext build to make add-on -
13
Outline Sidebar
Creates table of contents in the sidebar
Outline is a Firefox WebExtension that outlines the page. To install add-on follow this link - https://mzl.la/2RSwScT Also is available as Cloudflare App - https://www.cloudflare.com/apps/outline-tool It generates a table of contents by extracting all the headings in the page. Automatically creates table of contents in the sidebar that can be clicked through, for easy document navigation. How to use ---- 1. Click the Outline button beside your address bar to activate it. You will see a box coming from left with the outline in it. 2. Click on any of the headings in the outline to jump to the corresponding section on the page. 3. Click the cross button on the bottom left to close the outline. ### Limitations - WebExtension only works on sites that allow content scripts. -
14
RESTBolt
Browser WebExtension to work on http(s) requests
## Inspired by POSTMAN browser extension Add-on is based on [RESTMan](https://github.com/jsargiot/restman) Opera extension --- #### Note - Use a simple HTTP Request & Response Service to test WebExtension -
15
Relative XPath Assistant
Just right click on the html elements to compare them
This WebExtension will give you the relative XPath expression of two web elements Release 1.4.2 (04/08/2022) - Adding control key functionality Add-on is based on relative-xpath-helper open-source project on github [https://github.com/syamsasi99/relative-xpath-helper] ### Details - Compared to the original version, some incompatibilities of the scripts with the Firefox browser have been improved and fixed - No data is sent to any server and not get from any server ### Limitations - WebExtension only works on sites that allow content scripts. - Add-on does not search through view-source code of webpage. -
16
SwifterSwift
A collection of more than 500 native Swift extensions
SwifterSwift is a collection of over 500 native Swift extensions, with handy methods, syntactic sugar, and performance improvements for a wide range of primitive data types, UIKit and Cocoa classes, over 500 in 1– for iOS, macOS, tvOS, watchOS, and Linux. CocoaPods is a dependency manager for Cocoa projects. To integrate SwifterSwift into your Xcode project using CocoaPods, specify it in your Podfile. SwifterSwift is Swift v5.0+ compatible starting from v5. SwifterSwift is a library of over 500 properties and methods, designed to extend Swift's functionality and productivity, staying faithful to the original Swift API design guidelines. Documentation for all extensions, with examples, is available at the homepage. Check Examples.playground from the project for some cool examples! -
17
Zepto.js
JavaScript library for modern browsers with a jQuery compatible API
Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API. If you use jQuery, you already know how to use Zepto. While 100% jQuery coverage is not a design goal, the APIs provided match their jQuery counterparts. The goal is to have a ~5-10k modular library that downloads and executes fast, with a familiar and versatile API, so you can concentrate on getting stuff done. Zepto is open source software and is released under the developer and business-friendly MIT license. Note that some optional features of Zepto specifically target mobile browsers; as the original project goal was to specifically provide a leaner alternative to jQuery for the mobile web. Zepto is a good choice for browser extensions (for Safari, Chrome and Firefox) and to develop HTML-based views within native app frameworks, such as PhoneGap. In short, Zepto is expected to work in every modern browser and browser-like environment. -
18
HTML & CSS
-
19
MobiDevTools
A mobile devtools for debugging web sites and web apps
This add-on provides an intuitive and visually appealing panel interface embedded directly inside your Firefox browser. Whether you develop for mobile or desktop web, gain instant access to critical page data and performance metrics — all without leaving the browser or resorting to external tools. »`Click the WebExtension's icon in the toolbar or menu to open the overlay.`
- Previous
- You're on page 1
- Next
