Live Translator

Translator

Settings

Gemini API key

Get one at aistudio.google.com/apikey. Stays on this device — never sent anywhere except Google.

Languages

Engine

Prompt-based engine. Bidirectional, with text-only and transcribe modes.

You speak

Translate to

"You speak" is the language you'll say things in; "Translate to" is what Gemini speaks back. Tap the swap button to flip them.

Translate to

The model auto-detects what you say and speaks this language back.

Echo speech already in the target language

On: repeats audio that's already in the target language. Off: stays silent when you're already speaking it.

Translation

Mode

Translates speech to text, then speaks it back.

Direction

Both speakers are translated, each into the other's language.

Voice

Voice Gemini uses to speak the translation.

Speech detection

Gemini detects when you start and stop talking.

Detection sensitivity

Pick Patient if Gemini interrupts you; Quick replies sooner.

Start sensitivity

End sensitivity

Prefix padding (ms)

Silence (ms)

Hotkey (needs companion)

Install the companion to bind a system-wide hotkey. The Speak button works without it.

Mode

Hold: talk while the key is pressed. Toggle: tap once to start, tap again to stop.

Capture key exclusively (block other apps)

On: other apps don't see the bound key (Ctrl/Shift/Alt/Win still pass through). Off: the key works everywhere.

Audio

Audio source

Pick mic, browser tab, or — with the companion — a specific app.

Microphone

Microphone used for speech input.

App to capture

Only apps currently playing sound appear. Start playback, then refresh ↻.

Audio output

System default

Translated speech plays on every ticked device.

Passthrough output

Sends your source audio to a virtual cable or extra speaker — handy for piping into meetings.

Companion app isn't installed (or its translatorcompanion:// handler isn't registered). Run it once to register.

Download companion

View

Your audio goes straight from this browser to Google. No middleman.

System prompt

Sent to Gemini at the start of every session. {source} and {target} become the languages you picked. The default changes with Mode + Direction; Reset reloads it.

Current default: —

Log

Test: