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Get W3 Wallet

W3 Wallet is a secure, capability-based browser wallet for macOS. It installs a local daemon, native messaging host, and browser extension so websites can interact with your wallet securely.

Download W3 Wallet Installer

Installation Steps

1
Prerequisites
Make sure you have macOS with JDK 17+ installed, and either Chrome or Brave browser.
2
Download the installer JAR
Go to the Releases page and download the latest W3WalletInstaller.jar file.
3
Run the installer
Open a terminal and run:
java -jar W3WalletInstaller.jar
This creates ~/.w3wallet/, extracts the daemon, launcher, and extension, and registers native messaging hosts for Chrome and Brave.
4
Load the browser extension
Open your browser and navigate to the extensions page (chrome://extensions). Enable Developer mode, click Load unpacked, and select:
~/.w3wallet/extension/
5
Restart your browser
Fully close and reopen your browser. The W3 Wallet extension will now be active and window.w3wallet will be available to websites.

To uninstall, run java -jar W3WalletInstaller.jar --uninstall.
For help, run java -jar W3WalletInstaller.jar --help.
View the source on GitHub.