Open Source Browsers
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Browse free open source Browsers and projects for Mac and Linux below. Use the toggles on the left to filter open source Browsers by OS, license, language, programming language, and project status.
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Brave Browser
The faster, safer desktop browser for macOS, Windows, and Linux
Brave is a free and open source browser that lets you browse safer and faster by blocking ads and trackers. Brave blocks harmful advertising, tracking pixels and cookies, and redirects sites to HTTPS. Brave is available for macOS, Windows, and Linux. -
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Tor Browser
Browser for using Tor on Windows, Mac OS X or Linux
Tor Browser enables you to use Tor on Windows, Mac OS X, or Linux without needing to install any software. Tor is a software that bounces your communications around a distributed network of relays run by volunteers. This effectively prevents anyone watching your Internet connection from learning what sites you visit; it prevents the sites you visit from learning your physical location; and allows you access to sites which are blocked. Tor Browser can run off a USB flash drive, comes with a pre-configured web browser to protect your anonymity, and is self-contained (portable). -
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DB Browser for SQLite
The DB Browser for SQLite
DB Browser for SQLite (DB4S) is a high quality, visual, open source tool to create, design, and edit database files compatible with SQLite. DB4S is for users and developers who want to create, search, and edit databases. DB4S uses a familiar spreadsheet-like interface, and complicated SQL commands do not have to be learned. This program is not a visual shell for the sqlite command line tool, and does not require familiarity with SQL commands. It is a tool to be used by both developers and end users, and must remain as simple to use as possible in order to achieve these goals. Import and export records as text, import and export tables from/to CSV files, import and export databases from/to SQL dump files, issue SQL queries and inspect the results, examine a log of all SQL commands issued by the application, plot simple graphs based on table or query data. -
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SweetAlert2
Beautiful, responsive, highly customizable popup boxes
SweetAlert2 offers a beautiful, responsive, highly customizable and accessible alternative to JavaScript’s popup boxes. It’s got zero dependencies, is compatible with most modern browsers, and offers a wealth of customization options. Your popup boxes can look exactly how you want them with various options for additional content, custom positioning, animation, background, and so much more! SweetAlert2 also supports various input types and offers a range of different themes. Visit their official website, https://sweetalert2.github.io/ to see all these custom features in action! -
Train ML Models With SQL You Already KnowBuild 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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Helium Browser
Private, fast, and honest web browser
Helium is a Chromium-based web browser designed to deliver privacy, speed, and simplicity by removing Google’s proprietary services, telemetry, and bloat. It’s built atop ungoogled-chromium, extending its philosophy with additional privacy features, design refinements, and user experience improvements aimed at transparency and control. Helium blocks ads and trackers by default through an integrated, unbiased uBlock Origin extension prepackaged as a native browser component. Its UI and feature set emphasize minimalism, no “smart” recommendations, account sync, or background data collection, resulting in a distraction-free browsing experience that respects user autonomy. The browser is available across macOS, Linux, and Windows, each version built from a fully open source pipeline for reproducibility and trust. Development focuses on maintaining compatibility with modern web standards while decoupling Chromium from its Google dependencies and services. -
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Adguard Browser Extension
AdGuard browser extension
AdGuard is a fast and lightweight ad-blocking browser extension that effectively blocks all types of ads and trackers. AdGuard is a fast and lightweight ad blocking browser extension that effectively blocks all types of ads and trackers on all web pages. We focus on advanced privacy protection features to not just block known trackers, but prevent web sites from building your shadow profile. Unlike its standalone counterparts (AG for Windows, Mac), the browser extension is completely free and open source. You can learn more about the difference here. AdGuard does not collect any information about you, and does not participate in any acceptable ads program. The only source of income we have is selling premium versions of our software, and we intend to keep it that way. AdGuard for Windows is not just another ad blocker, it is a multipurpose tool that combines all necessary features for the best web experience. It blocks ads and dangerous websites, speeds up page loading, etc. -
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Chromium
The official GitHub mirror of the Chromium source
Chromium is the open‑source foundational web browser project that drives browsers like Google Chrome, Microsoft Edge, and Opera—built for speed, stability, security, and extendability across platforms. This directory is currently in a prototyping state and may be removed in the future. As we add support for multiple coding IDE/agents, we will likely pull common prompts and instructions into a central directory with stubs for bespoke IDE/agent integration. Please check with your organization before using GitHub Copilot. copilot-intructions.md is typically a single instruction file that contains default instructions for a workspace. These instructions are automatically included in every chat request. -
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Otter Browser
Project aiming to recreate the best aspects of Opera 12.x UI using Qt5
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Lighthouse
Automated auditing, performance metrics, & best practices for the web
Lighthouse is an open-source, automated tool that analyzes and audits web apps and web pages in order to improve their quality. Lighthouse collects modern performance metrics and insights on developer best practices; auditing for performance, accessibility, SEO and more. After auditing it produces a report either in JSON or HTML. Included in the report is a reference doc that explains the importance of the audit and how to fix the problem areas, which you can use to improve the web app or web page. Lighthouse can be integrated directly into the Chrome DevTools with its own panel. To run it, you would simply have to select the Lighthouse panel and click on "Generate report". It can also be run from the command line, or as a Node module. -
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POI POI POI
Scalable KanColle browser and tool
poi is a scalable browser and tool set for Kantai Collection(KanColle). Key features include proxy,HTTP, Socks5 and PAC (Experimental). Cache, including custom cache. Data synthesis and analysis. Notification and plugin support for extensive functionalities. -
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geckodriver
WebDriver for Firefox
geckodriver is an implementation of WebDriver, and WebDriver can be used for widely different purposes. How you invoke geckodriver largely depends on your use case. If you are using geckodriver through Selenium, you must ensure that you have version 3.11 or greater. Because geckodriver implements the W3C WebDriver standard and not the same Selenium wire protocol older drivers are using, you may experience incompatibilities and migration problems when making the switch from FirefoxDriver to geckodriver. Generally speaking, Selenium 3 enabled geckodriver as the default WebDriver implementation for Firefox. With the release of Firefox 47, FirefoxDriver had to be discontinued for its lack of support for the new multi-processing architecture in Gecko. Since geckodriver is a separate HTTP server that is a complete remote end implementation of WebDriver, it is possible to avoid using the Selenium remote server if you have no requirements to distribute processes across a matrix of systems. -
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Progressive Web Apps for Firefox
A tool to install, manage and use Progressive Web Apps (PWAs)
A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox. Progressive Web Apps (PWAs) are web apps that use web APIs and features along with a progressive enhancement strategy to bring a native app-like user experience to cross-platform web applications. Although Firefox supports many of Progressive Web App APIs, it does not support functionality to install them as a standalone system app with an app-like experience. This project creates a custom-modified Firefox runtime to allow websites to be installed as standalone apps and provides a console tool and browser extension to install, manage and use them. Command-line tool to install, manage and run Progressive Web Apps in Firefox. Extension to set up native programs, and install, manage and run PWAs and their profiles directly from the main Firefox browser. Isolated Firefox installation and profile(s) that stores the PWAs. -
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Zen Browser
Experience tranquillity while browsing the web
Experience tranquillity while browsing the web without people tracking you. Beautifully designed, privacy-focused, and packed with features. We care about your experience, not your data. With Zen's Theme Store, you can customize your browsing experience to reflect your unique style and preferences. Choose from a wide array of themes, colors, and layouts to make Zen truly your own, transforming your browser into a personalized digital space. Zen thrives on the contributions of its vibrant community. As an open-source project, Zen encourages collaboration and innovation, allowing users and developers alike to shape the future of the browser. Zen Browser is always up to date, ensuring that you have the latest features and security updates. With automatic updates, you can rest easy knowing that your browser is secure and up to date. Zen is based on Firefox, ensuring that your browsing experience prioritizes security and privacy. -
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Don't waste your time with compliance. Universal Bypass circumvents annoying link shorteners. Universal Bypass bypasses templates that are used on thousands of domains and it would be impossible for me to keep a complete list of domains that are bypassed. You would have to get a new Universal Bypass version and accept its new permissions for each new bypass. Custom Bypasses would be pretty pointless if you could only create them for sites that are already bypassed. Also known in the options as "Give and take the destinations of unbypassable shorteners.", this feature exists to bypass a respectable amount of link shorteners using CAPTCHAs and other forms of backend validation to make sure you've actually waited before you can proceed to the target link, to share this target with other Universal Bypass users, who come across the same link in the future, so they can proceed to the target immediately.
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Waterfox
Privacy browser built for users who value customization & control
Waterfox is a free, open-source web browser and fork of Mozilla Firefox that’s built for users who prioritize privacy, performance, and customizability while still maintaining compatibility with modern web standards and extensions. It began as a 64-bit-focused fork and has grown into a full-featured browser available on Windows, macOS, Linux, and Android, making it a versatile alternative to mainstream browsers. Waterfox removes or disables much of Firefox’s telemetry and unnecessary data collection by default, giving users greater control over what is shared with third parties while still supporting classic and modern add-ons. The project emphasizes speed and efficiency through optimizations and choice, letting users tweak settings or install favored extensions without being locked into ecosystem constraints. Because it’s open source and actively developed by the community, new features, security updates, and performance improvements arrive regularly to align with web standards. -
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Selenium
Browser automation framework and ecosystem
Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should) also be automated as well. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments, then you want to use Selenium WebDriver, a collection of language specific bindings to drive a browser - the way it is meant to be driven. If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome and Firefox add-on that will do simple record-and-playback of interactions with the browser. If you want to scale by distributing and running tests on several machines and manage multiple environments from a central point. -
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cat-catch
Cat scratch chrome resource sniffing extension
cat-catch is a resource sniffing extension that can help you filter and list resources on the current page. Maozha is open source. Anyone can download and modify it and put it on the app store. There are already many fake Maozha with the ad code added. Please pay attention to your own data security. All installation addresses are subject to github and user documentation. Chromium kernel version 93 or later is required after version 1.0.17. If it is lower than 93, please use version 1.0.16. The extension is a general sniffing tool and has the same function as the browser DevTools. It does not decrypt any website. Any content downloaded by the user has nothing to do with the extension. Please pay attention to the permissions and copyrights of the downloaded resources. -
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Floorp Browser
All of source code of version 10 or later of Floorp Browser
By default, Floorp includes a robust tracking blocker, protecting users from a variety of malicious trackers lurking on the web. Additionally, it provides fingerprinting protection. Floorp's layout customization is unlimited. Move the tab bar to the bottom of the window, hide the title bar, and more. Create your own Floorp. In addition to the usual Firefox theme customization, Floorp allows you to switch between five different interface designs, including OS-specific themes. Floorp is based on Firefox ESR. Floorp will be updated every 4 weeks, with security updates provided before each Firefox release. We don't collect personal information from users. We don't track users. We don't sell user data. We have no affiliation with any advertising companies. Floorp's source code is entirely open, allowing anyone to view it and contribute to the project. Not only is the browser itself open source, but the build environment is as well. -
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BrowserOS
Agentic browser; privacy-first alternative to ChatGPT Atlas
BrowserOS is an open-source, agentic web browser built on a Chromium base that integrates AI agents directly into the browsing experience. Rather than just doing standard browsing, it places AI intelligence at the core: you can connect your own API keys (for e.g., OpenAI, Anthropic, Google Gemini) or run local models (via e.g., Ollama) so that your browsing data and automation stay on your machine — privacy and control are emphasized throughout. The interface remains familiar to users of Chrome (including support for Chrome extensions), but adds new capabilities: the browser can automate tasks for you, help you research by extracting and summarizing content, and enable agent-based workflows (e.g., “go fetch this info,” “fill this form,” “monitor this site”). The project is community-driven and entirely open source under the AGPL-3.0 license, which means you can inspect, fork, and contribute to the codebase. -
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camofox-browser
Headless browser automation server for AI agents to visit sites
camofox-browser is a headless browser automation server built specifically for AI agents that need to interact with websites that often block standard automation stacks. It wraps Camoufox, a Firefox fork that performs fingerprint spoofing at the C++ level, which means many browser characteristics are altered before page scripts can inspect them, rather than relying on JavaScript-layer stealth patches. The project is designed around a REST API, making it easier for agents and external tools to create tabs, navigate pages, click elements, type input, scroll, capture screenshots, and manage browsing sessions programmatically. Instead of returning large volumes of raw HTML, it emphasizes accessibility snapshots and stable element references, which reduces token usage and creates more reliable interaction flows for AI-driven browsing. It also supports practical operational features such as per-user session isolation, cookie importing for authenticated browsing, proxy and GeoIP routing. -
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Dillo
Dillo, a multi-platform graphical web browser
Dillo is a lightweight, minimal graphical web browser, designed for speed, low resource usage, and privacy. It is written in C and C++ using the FLTK (Fast Light Toolkit) GUI library. Its goals include enabling web access on old or constrained hardware, using slow or unreliable network connections, minimizing dependencies, and avoiding many of the complexities and overheads of modern full-featured browsers. It omits many modern features (notably JavaScript), instead focusing on rendering HTML (mostly older/standardized subsets), images, and some CSS, while keeping the codebase small. It is free/open source under GPL-3.0. -
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miniblink49
Lighter, faster browser kernel of blink to integrate HTML UI in apps
miniblink is an open source, one file, small browser widget based on chromium. By using C interface, you can create a browser with just some line code. miniblink is an open source, single-file, and currently the smallest known chromium-based browser control. Through its exported pure C interface, a browser control can be created in a few lines of code. C++, C#, Delphi and other language calls (support C++, C#, Delphi language to call). Embedded Nodejs, support electron (with Nodejs, can run electron). Customize as you wish, simulate another browser environment. Perfect HTML5 support, friendly to various front-end libraries (support HTML5, and friendly to front framework). After turning off the cross-domain switch, you can use various cross-domain functions (support cross-domain). Headless mode, which greatly saves resources and is suitable for crawlers (headless mode, be suitable for Web Crawler). -
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Playwright
Node library to automate Chromium, Firefox & WebKit with a single API
Playwright is a Node library for automating Chromium, Firefox and WebKit using a single API. It supports headless execution for all these browsers on Linux, macOS and Windows, providing automated web browser interactions that are fast, capable, reliable and ever-green. Playwright enables a broad spectrum of cross-browser web automation capabilities, which are used by Single Page Apps and Progressive Web Apps. These include scenarios that span multiple pages, domains and iframes; emulation of mobile devices, geolocation, and permissions; upload and download files and many more. -
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chromium-web-store
Allows adding extensions from chrome web store on ungoogled-chromium
Allows adding extensions from chrome web store on ungoogled-chromium. Also adds semi-automatic extension updating. This extension brings the following functionality to ungoogled-chromium (and other forks that lack web store support). Allows installing extensions directly from chrome web store. Automatically checks for updates to your installed extensions and displays them on the badge. Pin the Chromium Web Store badge in your browser's toolbar. (Badges are hidden by default). The badge will show a red number indicating available updates. Click on the badge, then click the name of any extension to install the latest version. This method will work for non-webstore extensions as well if they support it, including chromium web store itself. (See the section below if you are an extension developer and don't have your extension listed in the chrome web store.) -
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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".
