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Soniox App Browser Extension

Live captions and translation on any website

Add real-time subtitles and live translation to any website. AI captions for videos, meetings, streams, and more.

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Free to start, with free credits added every week.
Soniox browser extension showing live captions overlayed on a video

How it works

Get live real-time captions and translation on any website in three quick steps.

Step 1

Get Soniox Browser Extension

Install from Chrome Web Store, pin it in your extension bar, and open the side panel on any tab.

Step 2

Pick a language and record

Choose the language you want to see captions in, press record button and give permission to capture audio.

Step 3

See captions instantly

A sleek, draggable caption overlay appears right on the page as people speak.

Everything you need to follow any conversation

Soniox Browser Extension uses state-of-the-art speech recognition to deliver fast, accurate transcription and translation directly in your browser.

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Live captions

Real-time transcription displayed as a draggable overlay on any webpage.

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Live translation

Translate speech into your preferred language as it happens.

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60+ languages

Broad language support with automatic language detection.

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Speaker identification

Distinguish between different speakers in the audio.

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Works everywhere

Captures audio from any tab on any website. Videos, webinars, streams, and meetings.

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Built on Soniox AI

Powered by state-of-the-art speech AI models developed by Soniox for fast, accurate transcriptions.

Use Soniox across the web

Add subtitles wherever spoken language shows up online.

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Foreign-language videos

Follow along with videos in a language you’re still learning, with captions translated in real-time.

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Webinars, streams, and meetings

Add subtitles to live streams, webinars, and online meetings running in your browser.

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Accessibility

Improve accessibility for deaf and hard-of-hearing users by turning any spoken content into readable text.

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Lectures and presentations

Transcribe lectures and presentations in the browser.

Soniox browser extension showing live captions overlayed on a video

Works with your Soniox App account

Sign in with your Soniox App account to start using the extension. The same account works across Soniox App on mobile, desktop, and web.

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Frequently asked questions

What does the Soniox browser extension do?arrow_downward
The extension adds real-time captions and live translation to any website with audio — videos, meetings, streams, and more — displayed as a draggable overlay on the page.
Which websites does it work on?arrow_downward
The extension captures audio from any tab on any website, so you can use it wherever you watch or listen in your browser.
Which languages are supported?arrow_downward
Soniox supports 60+ languages with automatic language detection, and can translate captions into your preferred language as people speak.
Does it identify different speakers?arrow_downward
Yes. The extension distinguishes between different speakers in the audio so captions are easier to follow.
Do I need an account?arrow_downward
Yes. Sign in with your Soniox App account to get started. The same account works across Soniox App on mobile, desktop, and web. Free credits are included.
How do I start captions on a page?arrow_downward
Click the Soniox extension icon and side panel will open, select your language, and hit record button and give permissions to capture audio as instructed. Captions will appear as an overlay on the page instantly.
Which browser does the extension support?arrow_downward
The extension is available on the Chrome Web Store and can be used by any browser that supports Chrome Extensions.