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LiveCap captures your browser tab's audio and displays live bilingual subtitles — on any website, in any language, with zero setup.

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lecture-platform.example/intro-to-ai
Translating…
And that's why the new architecture performs so much better under load 这就是为什么新架构在高负载下表现如此出色
🎙️ OpenAI Whisper transcription
🌐 75 languages
Real-time streaming
🔒 Audio never stored
🧩 Chrome MV3 extension
How it works

Three steps to live subtitles

No configuration, no plugins, no restrictions. Works on any website with audio content — online courses, videos, podcasts, meetings, and more.

1

Install the extension

Add LiveCap to Chrome from the Web Store. No permissions are requested beyond audio capture for the active tab.

2

Sign in & pick languages

Create a free account, open the extension settings, and choose your source and target languages.

3

Click Start Translation

Hit the toolbar icon on any tab. A live bilingual subtitle overlay appears at the bottom of the page instantly.

Features

Everything you need,
nothing you don't

Built for real-world use — meetings, lectures, streams, language learning.

🎙️

Any tab, any audio

Works with any Chrome tab — video platforms, online meetings, podcasts, educational content, and more. No special integration needed.

Low-latency streaming

Powered by OpenAI Whisper for transcription and GPT-4o mini for translation. Subtitles typically appear within seconds of speech.

🌍

75 languages

Translate from any language Whisper supports into your language of choice. Auto-detect works too.

🎨

Fully customizable

Position, font size, colors, and background opacity are all adjustable so subtitles fit naturally into any content.

🔒

Private by design

Audio is processed in real time and never stored. Only the transcribed text is sent for translation — raw audio is discarded immediately.

📦

Lightweight & clean

Under 200 KB. No tracking scripts, no third-party analytics. Just a focused Chrome extension that does one thing exceptionally well.

Start understanding
any audio, right now

10 minutes free — no credit card required. Upgrade to Pro for unlimited translation.