Live captions with translation, on any Windows PC

Windows Live Captions can translate only on Copilot+ PCs, and only into English or Simplified Chinese. DuoVox captions what your PC plays or hears and translates it as people speak, in both directions, on any Windows 10 or Windows 11 PC.

Get it on the Microsoft Store

What DuoVox adds

• Any Windows PC. No Copilot+ PC and no special processor needed: DuoVox runs on Windows 10 and Windows 11.
• Translation into your language. Not only English: choose the two languages of the conversation and DuoVox translates between them.
• Both sides of the conversation. What each person says and its translation appear side by side, so you can follow both languages at once.
• Free and offline to start. The Free plan runs entirely on your computer in 30 languages: no account, no internet connection, no time limit.

How it works

1. Install DuoVox from the Microsoft Store and open it.
2. Choose the two languages of the conversation. DuoVox detects which one is being spoken.
3. Set the audio source to System Audio with the headphone button in the toolbar, then press Start.

System Audio captions what your PC plays, so it hears the other people on the call. To caption people in the same room, switch the source to PC / Desk Mic or Headset Mic.

Live Captions or DuoVox?

If you have a Copilot+ PC and only need English, Windows Live Captions is free and built in. If your PC is not a Copilot+ PC, if you need a language other than English, or if you want both sides of a two-language conversation with the translation beside the original, DuoVox does that.

Free, Standard or Professional

Free captions and translates on your device. Standard and Professional use cloud AI for higher accuracy and more languages — 33 on Standard and 43 on Professional — and include hours every month; Pay-As-You-Go hours never expire. On paid plans, call audio is sent to our AI providers in real time to produce the captions and is not stored by us. See plans and prices.

Good to know

• DuoVox is an assistive tool, not a certified or human interpreter. Automated captions and translations can contain errors, so check anything important.
• Do not rely on it as the only source of meaning in medical, legal, safety-critical or other high-stakes situations.
• DuoVox is available for Windows 10 and Windows 11. It is not yet available in the EU or EEA.

Which languages are covered on each plan? See the language list.