Open Source Browsers
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Browse free open source Browsers and projects 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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PortableApps.com
Portable software for cloud, local, and portable USB drives
PortableApps.com is the world's most popular portable software solution allowing you to take your favorite software with you. A fully open source and free platform, it works from any synced cloud folder (DropBox, Google Drive, Box, etc), from your local PC on an internal or external drive, or on any portable storage device (USB flash drive, memory card, portable SSD or hard drive, etc) moved between PCs. With millions of users all over the world, nearly 500 real open source and freeware apps in our main app store (no shovelware), compatible commercial software, and partners in hardware industry, PortableApps.com is the most complete solution for life on the go. -
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Safe Exam Browser is a webbrowser-environment to carry out online-exams safely. The software changes any computer into a secure workstation. It regulates the access to any utilities and prevents students from using unauthorised resources.
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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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K-Meleon
A fast and customizable web browser for Windows using Gecko.
K-Meleon is a fast and customizable web browser that can be used instead of Internet Explorer on Windows. Powered by the same Gecko engine as the Firefox and Mozilla browsers, K-Meleon provides users with a secure browsing experience. -
Our Free Plans just got better! | Auth0You 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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Thorium for Windows
Chromium fork for Windows named after radioactive element No. 90
Thorium for Windows is the Windows-focused distribution of the Thorium web browser, a privacy- and feature-enhanced Chromium fork named after the radioactive element and built to support modern web browsing with added controls and tweaks not found in standard Chromium builds. It aims to provide a browsing experience similar to Google Chrome in terms of compatibility with web apps and extensions but injects user-centric changes like privacy controls enabled by default, content filtering, and interface tweaks that appeal to advanced users. Thorium often includes enhancements such as Global Privacy Control support, improved media controls, and UI responsiveness tweaks that elevate everyday browsing. The Windows variant supplies installers and portable builds so users can deploy it easily on desktops without much configuration. It continues a tradition of community-driven browser forks that balance performance, privacy, and usability outside mainstream vendor ecosystems. -
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Cromite
Cromite a Bromite fork with ad blocking and privacy enhancements
Cromite is an open-source web browser project that originated as a fork of Bromite—a Chromium-based browser focused on ad blocking and enhanced privacy—and continues to evolve with built-in privacy protections and content filtering across Android, Windows, and Linux platforms. It retains the core goal of limiting tracking and intrusive ads by integrating ad blocking directly into the browser engine rather than relying on external extensions, all while striving to reduce telemetry, aggressive analytics, and close manufacturer integration. Cromite emphasizes user choice and control over web content, offering privacy-oriented settings and mitigations such as anti-fingerprinting measures and configurable filters to block unwanted elements. The project extends its focus beyond Android to desktop platforms, building packages that let users benefit from a more private browsing experience without sacrificing compatibility with modern web standards. -
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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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Thorium
High-performance, privacy-focused browser built as a fork of Chromium
Thorium is a high-performance, privacy-focused web browser built as a fork of Chromium. It is designed to deliver significantly faster browsing speeds through aggressive compiler optimizations such as SSE4.2 and AVX. These low-level enhancements allow Thorium to outperform standard Chrome and Chromium builds in responsiveness and efficiency. The browser removes much of Google’s built-in bloat to create a leaner browsing experience. Thorium also includes additional privacy features that reduce tracking and unnecessary background activity. Bug fixes and compatibility patches improve stability across Linux and other supported platforms. Overall, Thorium balances speed, privacy, and modern web compatibility in a familiar Chromium-based browser. -
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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. -
Custom VMs From 1 to 96 vCPUs With 99.95% UptimeLive migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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r3dfox - Modern Firefox for Windows 7
Modern Firefox based web browser for Windows Vista & 7!
r3dfox or r3dactedfox is a fork of release branch Mozilla Firefox made for Windows Vista, 7, and 8. r3dfox also comes with limited compatibility for Windows XP using One Core API. Included are multiple tweaks from Librewolf, other browsers, and our own tweaks. Our browser even has a custom theme. You can disable any of this at will for a more stock experience if you want to. -
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Cyberfox
A Mozilla-based browser designed for the 64-bit architecture
Cyberfox is a Mozilla-based Internet browser designed to take advantage of 64-bit architecture but a 32-bit version is also available. The application provides a higher memory performance when navigating your favorite pages. Compatible Windows Operating Systems: Windows 7/7 SP1 OS x86|x64 Windows 8/8.x OS x86|x64 Windows 10 OS x86|x64 (Windows XP Unsupported, Windows Vista Unsupported) Dedicated support forums. https://8pecxstudios.com/Forums/index.php Dedicated Contact Forms. https://cyberfox.8pecxstudios.com/contact-us Profile Buddy: Transfer your profile from any Mozilla base browser. https://8pecxstudios.com/Forums/viewtopic.php?f=6&t=350 See notifications for critical release information: https://cyberfox.8pecxstudios.com/notifications Tell us what you think and write a review. Future direction of project https://8pecxstudios.com/Forums/viewtopic.php?f=6&t=1756 -
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Ungoogled Chromium Android
Android build for ungoogled-chromium
Ungoogled Chromium Android is the Android platform build configuration and support tooling for Ungoogled Chromium on mobile devices, enabling privacy-minded users and developers to compile a version of the Chromium browser for Android that excludes Google-dependent services, telemetry, and tracking. This repository contains platform-specific patches, build targets, and integration scripts to adapt the upstream Chromium source for Android while eliminating components like Google Play Services hooks, automatic updater mechanisms, and preconfigured search engines that compromise privacy. The goal is to offer an Android browser that feels familiar in capability and rendering fidelity but does not phone home, engage with proprietary APIs, or leak usage data to third-party providers. Because Android’s ecosystem is heavily tied to Google’s app services, this effort focuses on ensuring core browsing functionality, tab management, extension support (as available), and performance optimizations. -
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Ungoogled Chromium Windows
Windows packaging for ungoogled-chromium
Ungoogled Chromium Windows is the Windows build configuration and tooling for Ungoogled Chromium, a fork of the Chromium browser that removes Google-specific services, tracking, and invasive integrations to deliver a more privacy-respectful, user-controlled web experience on Microsoft platforms. This project specifically targets the Windows ecosystem, supplying build scripts, patches, and configuration files necessary to compile Chromium without telemetry, alternate error reporting, Google update mechanisms, built-in Google APIs, and other remote-service dependencies commonly embedded in stock builds. Users who need a modern browser engine with wide compatibility but without Google branding or background services can leverage this repository to produce Windows installers or portable builds that respect local privacy preferences. -
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Thorium for Android
High-performance, privacy-focused browser built as a fork of Chromium
Thorium-Android is the Android-specific component of the Thorium browser ecosystem, a community-oriented, Chromium-based web browser project focused on improving performance, privacy, and user experience beyond what you typically get from stock Chromium builds. Like its desktop counterparts, Thorium for Android compiles the latest Chromium source with targeted optimizations and patches, aiming for faster loading, smoother rendering, and sensible defaults that emphasize privacy and reduced unwanted data flows. The Android branch adapts these enhancements to work on ARM and ARM64 devices, offering users a familiar yet distinct browsing experience with added performance tuning over standard mobile browsers. It typically includes the same underlying engine that scored high in independent performance benchmarks and leverages optimization flags and compiler improvements to boost responsiveness. -
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Onion Browser
An open-source, privacy-enhancing web browser for iOS
Encrypted traffic through the Tor network gives you the highest standard of security and privacy. No extra eyes see your activity, save your history or influence your browsing. Targeted ads are history. Tabs don’t hang around. They close when you’re done, so every search is new. Onion Browser is your trusted connection to Tor on iOS. Tor offers the highest standard of privacy. You are not linked to your browsing activity. Your location doesn't influence the websites you’re able to visit. Onion sites are simplified versions of websites that can only be accessed by Tor. They are a sure safe way to connect. You can adjust your security for each website you visit to get the best experience. -
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Harper
Offline, privacy-first grammar checker
Harper is an offline, privacy-first English grammar checker written primarily in Rust. It analyzes writing locally, avoiding the latency and data exposure associated with cloud-only services. The engine is designed to lint documents in milliseconds while using a small memory footprint. It can run through WebAssembly in browsers and applications or through native command-line and language-server components. Official integrations support editors and tools including Visual Studio Code, Neovim, Helix, Emacs, Zed, and Obsidian. Its modular repository also contains parsers for formats such as HTML, TeX, Typst, AsciiDoc, and source-code comments. The core currently focuses on English but is designed to be extended to additional languages. -
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CloakBrowser
Stealth Chromium for developers and browser automation.
CloakBrowser is a stealth Chromium browser for developers and automation teams using Playwright, Puppeteer, Selenium, or CDP. It supports public web data, QA, monitoring, scraping, and AI-agent workflows while preserving familiar automation APIs. Run CloakBrowser locally or self-hosted on Windows, macOS, Linux, Docker, and VPS infrastructure. Features include persistent profiles, reproducible browser identities, proxy-aware configuration, human-like interaction timing, and CDP server mode. This repository contains the MIT-licensed Python, JavaScript, and .NET wrappers. The custom Chromium binary is downloaded separately and distributed under a proprietary license. Proxies and CAPTCHA-solving services are not included. Official website and pricing: https://cloakbrowser.dev/ Official SourceForge product profile: https://sourceforge.net/software/product/CloakBrowser/ -
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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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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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Otter Browser
Project aiming to recreate the best aspects of Opera 12.x UI using Qt5
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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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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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Brave for iOS
Brave iOS Browser
The best online privacy. Search and browse privately, turning your back on the big techies. By default, Brave blocks trackers and annoying ads from the websites you visit. And you also forget that the ads follow you wherever you browse. The advantages of blocking ads, incognito windows, private search and even VPN. All in one download. Quickly import bookmarks, extensions, and even saved passwords. The best of your old browser, but more secure. And it will only take you a minute to change. Brave offers you independent searches, free videoconferences, offline playlists, even a customizable news service. Everything in a 100% private way. Everything is directly in your super browser. By removing rare ads and trackers, there will be fewer ( visible or hidden ) things on every website you visit. And that means it will charge faster and save battery and even mobile data. -
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RabbitMQ Server
Core server and tier 1 (built-in) plugins
RabbitMQ is the most widely deployed open source message broker. With tens of thousands of users, RabbitMQ is one of the most popular open source message brokers. From T-Mobile to Runtastic, RabbitMQ is used worldwide at small startups and large enterprises. RabbitMQ is lightweight and easy to deploy on premises and in the cloud. It supports multiple messaging protocols. RabbitMQ can be deployed in distributed and federated configurations to meet high-scale, high-availability requirements. RabbitMQ runs on many operating systems and cloud environments, and provides a wide range of developer tools for most popular languages. Supports multiple messaging protocols, message queuing, delivery acknowledgement, flexible routing to queues, multiple exchange type. Deploy as clusters for high availability and throughput; federate across multiple availability zones and regions. HTTP-API, command line tool, and UI for managing and monitoring RabbitMQ. -
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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.
