Viola is a voice assistant for Windows that starts with what you already use. Install it, connect your services, and ask for the result. Switching from Siri, Alexa, or Google Assistant? You keep everything else.
Start with the signed desktop installer. Viola runs from your computer and can add rooms through ordinary browsers.
Use YouTube/Google music paths, Spotify in the Windows desktop app, or local files for music. Connect Google Calendar in Settings to enable calendar features. Add Home Assistant if you want smart home control.
Use push-to-talk or enable your wake word. Add rooms by opening a browser on another device. Set up phone in Settings when you want outbound calls.
Viola runs on Windows 10 or 11 (64-bit). It is free to start: no card, no account required to install, and the Free plan has the same features as Pro and Max. When you connect your accounts, Viola stays local-first: OAuth tokens, API keys, memory, and browser profiles live on your device by default, and the Privacy Ledger documents what leaves your machine. Prefer your own API key or a local model? BYOK and local-model setup never needs a paid plan.
Ask for the outcome. Viola chooses the steps and stops for approval when the action needs it.
No. Connect only what you use. Music works out of the box with local files; Google Calendar, Spotify on the Windows desktop app, Home Assistant, and phone calling are each separate opt-in connections in Settings.
No. Push-to-talk works from the start, and the wake word is a setting you can turn on when you want hands-free use.
Yes. Installing costs nothing, no card or account is required, and the Free plan includes a light managed usage allowance. Bring your own API key or a local model and it stays free. See plans.
Viola is local-first: OAuth tokens, API keys, memory, and browser profiles stay on your device by default, and the Privacy Ledger documents exactly what leaves your machine per capability.
On a Windows PC, yes. Viola covers music across rooms, calendar, real outbound phone calls, browser tasks, and smart home control, and it connects to the services you already use rather than a new ecosystem. Compare Viola with Alexa, Google, and Siri.
Download Viola for Windows, connect the services you want, and ask for the outcome. Free to start.
Download for Windows