extOS is a Chrome extension that runs a local Linux virtual machine in your browser. The first public version does not include or use an extOS-hosted relay service. Network access requires a relay that you run or choose yourself.
extOS stores virtual machine state snapshots, relay URL settings, and optional relay subscription code settings in Chrome extension storage and IndexedDB on your device.
When networking is enabled, extOS connects the virtual machine to the relay URL you configure. The relay receives virtual network traffic from the guest Linux machine. Use encrypted protocols such as SSH and HTTPS when sending sensitive data.
The extension does not send analytics, telemetry, VM state, terminal contents, relay settings, or subscription codes to servers operated by the extOS project.
If you configure extOS to use a third-party relay, that relay operator may process your network traffic and metadata according to their own policies.
For privacy or security questions, use the CPTE contact page.