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.

  • Auth for GenAI | Auth0 Icon
    Auth for GenAI | Auth0

    Enable AI agents to securely access tools, workflows, and data with fine-grained control and just a few lines of code.

    Easily implement secure login experiences for AI Agents - from interactive chatbots to background workers with Auth0. Auth for GenAI is now available in Developer Preview
    Try free now
  • Red Hat Enterprise Linux on Microsoft Azure Icon
    Red Hat Enterprise Linux on Microsoft Azure

    Deploy Red Hat Enterprise Linux on Microsoft Azure for a secure, reliable, and scalable cloud environment, fully integrated with Microsoft services.

    Red Hat Enterprise Linux (RHEL) on Microsoft Azure provides a secure, reliable, and flexible foundation for your cloud infrastructure. Red Hat Enterprise Linux on Microsoft Azure is ideal for enterprises seeking to enhance their cloud environment with seamless integration, consistent performance, and comprehensive support.
    Learn More
  • 1
    PortableApps.com

    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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    Downloads: 451,988 This Week
    Last Update:
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  • 2
    Safe Exam Browser
    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.
    Leader badge
    Downloads: 150,152 This Week
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  • 3
    Tor Browser

    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).
    Downloads: 663 This Week
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  • 4
    K-Meleon

    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.
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    Downloads: 2,817 This Week
    Last Update:
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  • Deliver secure remote access with OpenVPN. Icon
    Deliver secure remote access with OpenVPN.

    Trusted by nearly 20,000 customers worldwide, and all major cloud providers.

    OpenVPN's products provide scalable, secure remote access — giving complete freedom to your employees to work outside the office while securely accessing SaaS, the internet, and company resources.
    Get started — no credit card required.
  • 5
    geckodriver

    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.
    Downloads: 195 This Week
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  • 6
    Selenium

    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.
    Downloads: 147 This Week
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  • 7
    Otter Browser

    Otter Browser

    Project aiming to recreate the best aspects of Opera 12.x UI using Qt5

    Leader badge
    Downloads: 673 This Week
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  • 8
    Cyberfox

    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
    Leader badge
    Downloads: 685 This Week
    Last Update:
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  • 9
    Brave Browser

    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.
    Downloads: 126 This Week
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  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
    Try for free
  • 10
    RabbitMQ Server

    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.
    Downloads: 105 This Week
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  • 11
    SweetAlert2

    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!
    Downloads: 105 This Week
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  • 12
    Zen Browser

    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.
    Downloads: 95 This Week
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  • 13
    Onion Browser

    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.
    Downloads: 91 This Week
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  • 14
    Universal Bypass
    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.
    Downloads: 89 This Week
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  • 15
    Floorp Browser

    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.
    Downloads: 87 This Week
    Last Update:
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  • 16
    DB Browser for SQLite

    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.
    Downloads: 82 This Week
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  • 17
    Advanced Onion Router
    Advanced Onion Router is a portable client for the OR network and is intended to be an improved alternative for Tor+Vidalia+Privoxy bundle for Windows users. Some of the improvements include UNICODE paths, support for HTTP and HTTPS proxy protocols on the same Socks4/Socks5 port with HTTP header filtering that generates fake identity-dependent headers every time the identity is changed (proxy chains are also supported), support for NTLM proxies, a User Interface that makes Tor's options and actions more accessible, local banlist for forbidden addresses, private identity isolation, a point-and-click process interceptor that can redirect connections from programs that don't support proxies, also giving them fake information about the local system and support for .onion addresses. Also, it can estimate AS paths for all circuits and prevent AS path intersections, it can restrict circuits to be built using only nodes from different countries, can change circuit lengths and more.
    Leader badge
    Downloads: 333 This Week
    Last Update:
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  • 18
    Webq83 Web Browser

    Webq83 Web Browser

    W3 Web Browser

    W3 Web Browser Linux amd64, arm64 Compatible with linux versions ... Debian 12 Bookworm Ubuntu 24.04 Noble Numbat Linux Mint 22.1 MX-Linux 23.6 SparkyLinux 7.7 LinuxQ83 Chopin 12.11 ARCH amd64 wget https://sourceforge.net/projects/webq83-web-browser/files/w3/Beta1/w3_0.9.0-b7~1_amd64.deb sudo apt install ./w3_0.9.0-b7~1_amd64.deb ARCH arm64 wget https://sourceforge.net/projects/webq83-web-browser/files/w3/Beta1/w3_0.9.0-b7~1_arm64.deb sudo apt install ./w3_0.9.0-b7~1_arm64.deb
    Downloads: 1,936 This Week
    Last Update:
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  • 19
    Thorium

    Thorium

    Chromium fork named after radioactive element No. 90

    Chromium fork for Linux named after radioactive element No. 90. Windows/MacOS/RasPi/Android/Other builds.
    Downloads: 70 This Week
    Last Update:
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  • 20
    Eric Integrated Development Environment

    Eric Integrated Development Environment

    Python Development Environment with all batteries included

    Eric is a Python IDE written using PyQt and QScintilla. It provides various features such as any number of open editors, an integrated (remote) debugger, project management facilities, unit test, refactoring and much more.
    Leader badge
    Downloads: 370 This Week
    Last Update:
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  • 21
    Buster

    Buster

    Captcha solver extension for humans

    Save time by asking Buster to solve captchas for you. Buster is a Firefox extension which helps you to solve difficult captchas by completing reCAPTCHA audio challenges using speech recognition. Challenges are solved by clicking on the extension button at the bottom of the reCAPTCHA widget. It is not guaranteed that challenges are always solved, the limitations of the technology need to be considered. The continued development of Buster is made possible thanks to the support of awesome backers. If you'd like to join them, please consider contributing with Patreon, PayPal or Bitcoin. The success rate of the extension can be improved by simulating user interactions with the help of a client app. Follow the instructions from the extension's options to download and install the client app on Windows, Linux and macOS, or get the app from this repository.
    Downloads: 60 This Week
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  • 22
    EinkBro

    EinkBro

    A small, fast web browser based on Android WebView

    EinkBro is designed to fit Eink devices' needs; no unnecessary UI transitions and animations, clear B&W icons, and useful features for Eink reading experience. It's originated from FOSS Browser, which is a fully free/libre (as in freedom) Android app.
    Downloads: 54 This Week
    Last Update:
    See Project
  • 23
    Automa

    Automa

    A chrome extension for automating your browser by connecting blocks

    Automa is a browser extension for browser automation. From auto-fill forms, doing a repetitive task, taking a screenshot, to scraping data of the website, it's up to you what you want to do with this extension. Automa has provided various kinds of blocks that will help you do automation, and all you need to do is connect them. Want your workflow to run every day or every time you visit a specific website? You can set the workflow trigger on the trigger block. Try a workflow from the marketplace. There're dozens of workflows been shared by Automa users which you can add and customize. Auto-fill forms, do a repetitive task, take a screenshot, or scrape website data, the choice is yours. You can even schedule when the automation will execute! Browse the Automa marketplace where you can share and download workflows with others.
    Downloads: 49 This Week
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  • 24
    Brave for iOS

    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.
    Downloads: 48 This Week
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  • 25
    Contiki is an open source, highly portable, networked, multi-tasking operating system for memory-constrained systems. Contiki current source code: https://github.com/contiki-os/contiki Contiki historical source code: https://github.com/adamdunkels/contiki-1.x
    Leader badge
    Downloads: 234 This Week
    Last Update:
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