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GrapheneOS

GrapheneOS/Vanadium

A privacy and security hardened build of Chromium that serves as the WebView and default browser on GrapheneOS.

Open-source alternative to:Google Chrome

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Last commit
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What is it?

Vanadium is a variant of Chromium with extra privacy and security hardening, built for GrapheneOS. It provides the WebView that other Android apps use to render web content, and it also serves as the standard user-facing browser on the platform.

Rather than reimplementing protections itself, Vanadium relies on hardening and compatibility fixes that live in other GrapheneOS repositories. For example, it uses the hardened memory allocator that GrapheneOS already ships instead of replacing it. Because the operating system can resolve compatibility issues, Vanadium can enable security features that would break on other systems.

Build instructions are maintained in the official GrapheneOS documentation, which covers how to build the browser and WebView.

Key features

  • 01Serves as the WebView used by other apps on GrapheneOS
  • 02Acts as the standard web browser for GrapheneOS users
  • 03Relies on OS-level hardening such as GrapheneOS's hardened malloc
  • 04Can enable security features that would break on other operating systems

Use cases

  • Browsing the web on a GrapheneOS device with a privacy-focused browser
  • Providing a hardened WebView for Android apps running on GrapheneOS
  • Studying how Chromium can be hardened for privacy and security

Quick start

  1. 1

    Read the official build documentation for browser and WebView instructions

  2. 2

    Follow the GrapheneOS build instructions for Vanadium

Things to know

  • Designed to be built and used within GrapheneOS; it relies on GrapheneOS fixes and is not a standalone browser for other systems.
  • Build instructions are provided only through the official GrapheneOS documentation, not in this repository.

In collections

Privacy & local-first toolsSecurity scanners, audits & threat intel toolsAndroid apps & phone tools

Topics

#chromium#browser#privacy#security#android#webview#grapheneos

FAQ

What is Vanadium?
A privacy and security hardened build of Chromium that serves as the WebView and default browser on GrapheneOS. Vanadium is a variant of Chromium with extra privacy and security hardening, built for GrapheneOS. It provides the WebView that other Android apps use to render web content, and it also serves as the standard user-facing browser on the platform.
Is Vanadium free to use? What license does it have?
Vanadium is open source under the Other license. Check the license terms before using it in commercial products.
Is Vanadium still maintained?
Actively maintained. The last commit to Vanadium was on Nov 4, 2026.
What can I use Vanadium for?
Browsing the web on a GrapheneOS device with a privacy-focused browser Providing a hardened WebView for Android apps running on GrapheneOS Studying how Chromium can be hardened for privacy and security
How do I install Vanadium?
Read the official build documentation for browser and WebView instructions Follow the GrapheneOS build instructions for Vanadium
Where can I get Vanadium?
The source code and installation instructions are on GitHub: https://github.com/GrapheneOS/Vanadium

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