Open Source Mobile Operating Systems Browsers
Sort By:
Browsers for Mobile Operating Systems
Browse free open source Browsers and projects for Mobile Operating Systems below. Use the toggles on the left to filter open source Browsers by OS, license, language, programming language, and project status.
-
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.
-
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.
-
1
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. -
2
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. -
3
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. -
4
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. -
AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
-
5
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. -
6
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. -
7
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. -
8
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. -
9
Firefox for iOS
Firefox for iOS
When it comes to your life online, you have a choice, accept the factory settings or put your privacy first. When you choose Firefox as your default browser, you’re choosing to protect your data while supporting an independent tech company. Firefox is also the only major browser backed by a non-profit fighting to give you more openness, transparency and control of your life online. Join hundreds of millions of people who choose to protect what's important by choosing Firefox. Keep what’s personal private without sacrificing speed. With Firefox, you can have more control to decide what to share online and when, because your life is your business. We designed Firefox with smart browsing features that let you take your privacy, passwords, and bookmarks with you safely wherever you go. With the release of iOS 14, you can now make Firefox your go-to, get-it-done, default browser. -
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.
-
10
Tamper Dev
Extension that allows you to intercept and edit HTTP/HTTPS requests
If you are a developer, you can use Tamper Dev to debug your websites, or if you are a pentester, you can use it to search for security vulnerabilities by inspecting the HTTP traffic from your browser. Unlike most other extensions, Tamper Dev allows you to intercept, inspect and modify the requests before they are sent to the server. This extension provides functionality similar to Burp Proxy, MITM Proxy, OWASP ZAP, Tamper Data, and Postman Proxy, but without the need of additional software, with full support of HTTPS connections, and trivial to set-up (just install). -
11
Kuroba Experimental
Free and open source image board browser
KurobaEx is a fast Android app for browsing imageboards, such as 4chan and 8chan. It's a fork of Kuroba. Ability to attach multiple media files to reply, attach media files that were shared by external apps (even by some keyboards), attach remote media files by URL, etc. New image downloader. Allows downloading images while the app is in the background, retrying failed to download images, resolving duplicates, etc. -
12
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. -
13
FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
-
14
Servo
Embed web technologies in applications
Servo is an experimental, highly parallel, and embeddable browser rendering engine written in Rust. It leverages Rust’s memory-safety and concurrency strengths, supports modern GPU-powered rendering (WebGL/WebGPU), and serves as a research-forward alternative to traditional browser engines. Servo is a prototype web browser engine written in the Rust language. It is currently developed on 64-bit macOS, 64-bit Linux, 64-bit Windows, 64-bit OpenHarmony, and Android. Open governance under Linux Foundation Europe; collaborative project evolving standards. Cross-platform support including Windows, macOS, Linux, Android, OpenHarmony. -
15
DuckDuckGo Android App
Privacy browser for Android
DuckDuckGo is an app that gives you utmost privacy when browsing online. It stops you from getting tracked and protects your personal and private information, no matter where the internet may take you. Apart from providing standard browsing functionality, DuckDuckGo blocks all hidden third-party trackers, forces sites to use an encrypted connection where available, and provides a Privacy Grade rating for each website you visit. -
16
Firefox for Android
Firefox for Android
Shortcut the internet with Firefox for Android. See all your open tabs, recent searches and favorite sites all in one place with Firefox browser for Android. Firefox for Android delivers effortless privacy protection with lighting-fast page loads. Enhanced Tracking Protection automatically blocks online trackers from following you around the web and slowing down your pages. Get to Private Browsing Mode with just one tap. And when you close Private Browsing Mode, your browsing history is automatically erased from your device. Got a big phone and normal sized thumbs? No problem. Firefox for Android lets you move the search bar from the top to the bottom making it easier to use with one hand. You can also choose your own search engine within the browser, and set Firefox as your default browser if you want. Switch to Dark Mode any time to reduce eye strain and prolong your battery power. -
17
Search by Image
Browser extension for reverse image search, available for Chrome
Search by Image is a powerful browser extension for Safari that makes effortless reverse image searches possible, and comes with support for more than 30 search engines, such as Google, Bing, Yandex, Baidu and TinEye. Search by Image is an open source project made possible thanks to a community of awesome supporters. By purchasing the extension on the Mac App Store, you help support the continued development of the extension. The extension helps journalists and researchers verify the authenticity of images, and assists in the identification of false information on social media. Search by Image is also popular among photographers, helping artists explore how their work is shared on the web, while shoppers find it valuable for discovering similar products at discounted prices. The extension enables you to search for images from the context menu and the browser toolbar with the help of a diverse set of reverse image search engines, which can be toggled and reordered from th -
18
sonar-detekt
SonarQube plugin for Kotlin
SonarQube plugin for Kotlin. detekt helps you write cleaner Kotlin code so you can focus on what matters the most building amazing software. detekt comes with a set of plugins that helps you configure it easily in your Gradle, Maven, Bazel build. Enjoy static analysis on Android, JVM, JS, Native, and Multiplatform projects out of the box. detekt can be easily extended with custom rules that help you track and fix anti-patterns in your codebase. detekt is entirely open-source and developed by the community. Join us on GitHub and help us shape the future of this tool. -
19
Bromite
Bromite is a Chromium fork with ad blocking and privacy enhancements
Bromite is an open-source web browser for Android based on the Chromium codebase that prioritizes privacy, performance, and a clean user experience with minimal tracking or clutter. It enhances the standard browser functionality by including built-in ad blocking, customizable filters, and privacy-centric defaults that remove or mitigate tracking features often embedded in mainstream browsers. Bromite’s development focuses on giving users greater control over web content and behavior, such as options for DNS-over-HTTPS, disabling field trials, showing site settings (cookies, JavaScript, etc.) directly from the address bar, and avoiding unnecessary integrations that may compromise privacy. Designed for Android Marshmallow (6.0) and above, it keeps the familiar Chromium interface while stripping out telemetry and server-side experiments, making it appealing to privacy-conscious users and those tired of default browsers treating ads as a platform feature. -
20
Gradle Play Publisher
GPP is Android's unofficial release automation Gradle Plugin
Gradle Play Publisher (GPP) is Android's unofficial release automation Gradle Plugin. It can do anything from building, uploading, and then promoting your App Bundle or APK to publishing app listings and other metadata. The first APK or App Bundle needs to be uploaded via the Google Play Console because registering the app with the Play Store cannot be done using the Play Developer API. For all subsequent uploads and changes, GPP may be used. To successfully upload apps to the Play Store, they must be signed with your developer key. Make sure you have a valid signing configuration. After you've gone through the Service Account setup, you should have a JSON file with your private key. GPP supports uploading both the App Bundle and APK. Once uploaded, GPP also supports promoting those artifacts to different tracks. -
21
Floccus
Sync your bookmarks privately across browsers and devices
Browser Extensions & Android App that sync your bookmarks across all your browsers and devices. Via an optionally selfhosted Nextcloud or WebDAV server or optionally end-to-end encrypted via Google Drive. Use any browser that supports Web extensions (e.g. Firefox, Chrome, Edge, Opera, Brave, Vivaldi, ...; Safari not yet) Install the floccus Android app to access your bookmarks on your phone. Create as many sync profiles as you need. Control sync strategy (i.e. uni- or bidirectional), sync interval and synced folder. Easily export your configuration. Keep your credentials secure with an encryption passphrase. Sync your bookmarks privately across browsers an devices. -
22
Jasmine Comic
A comic browser, supports Android / iOS / MacOS / Windows / Linux
A comic browser that supports Android/iOS/MacOS/Windows/Linux. -
23
Lightning Browser
A lightweight Android browser with modern navigation
Lightning is a simple, fast web browser that focuses on design, security, and efficiency. It uses material design, doesn't track you, give you lots of options to protect your privacy. It gets out of the way of the user. I built this browser because I wanted something better. Blocking ads is a core feature of Lightning Browser, meant to improve the speed and security of your browsing experience. Lightning's interface was carefully crafted so you can browse as efficiently as possible. Tabs and Bookmarks are all tucked neatly away in side drawers, only a swipe away, allowing maximum screen viewing with minimal interference from the browser's chrome. Dark Mode, Light Mode, Color Mode, Night Mode, etc. By utilizing the WebKit rendering engine that comes built into your Android device, Lightning can ensure a swift, lightweight experience. Use Incognito Mode to browse without leaving a footprint, download Orbot and turn on TOR proxy support to mask your identify and location. -
24
Turbo Download Manager
A portable modern multi-threading download manager for all platforms
A modern multi thread download manager for Windows, Linux, Mac OS, Firefox, Chrome, Opera and Android devices. For bug reports visit: https://github.com/inbasic/turbo-download-manager/issues For FAQs visit: http://add0n.com/turbo-download-manager.html Turbo Download Manager is an stand-alone application without any dependencies. It should run out of the box. Just set the download location while adding the first job request. If you have a browser and would like to integrate this download, use these browser extensions: Firefox: https://addons.mozilla.org/firefox/addon/turbo-download-manager/ Opera: https://addons.opera.com/extensions/details/turbo-download-manager/ Chrome: https://chrome.google.com/webstore/detail/turbo-download-manager/kemfccojgjoilhfmcblgimbggikekjip -
25
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.
