Bidirectional Translation

Understand Every
Language Instantly

Break language barriers with real-time bidirectional translation. Hear one language, read another instantly — powered by on-device AI for privacy or cloud translation for maximum coverage.

Start Translating FreeSee How It Works
Sound Familiar?
“

I sit through lectures in a foreign language and understand maybe half of what's said...

“

My team speaks three different languages — meetings are a constant game of 'can you repeat that?'

“

Translation apps only work after the fact. By then I've already missed the point of the conversation.

Translation Without Limits

Real-time, accurate, and available in 60+ language pairs.

Bidirectional Flow

Translate in both directions simultaneously. Source and target languages update in real time as speech is recognized.

Local & Cloud Modes

Choose on-device AI translation (via Chrome's built-in AI) for complete privacy — no data leaves your device. Or switch to cloud translation for maximum language coverage and accuracy.

Live Sync

Translations appear alongside the original transcript in real time — no waiting for post-processing.

Context-Aware

AI translation considers sentence context and domain terminology for more natural, accurate results.

How It Works

Seamless translation in three steps.

01

Set Languages

Choose your source and target languages from 60+ supported options. Switch between local and cloud translation modes.

02

Speak Naturally

Start recording and speak in your source language. Translations appear automatically alongside the original text.

03

Read in Real Time

Follow along in your preferred language. Both original and translated text scroll live as the conversation flows.

User Stories

Breaking Language Barriers

Real experiences from multilingual teams and international students.

As an exchange student, LecSync's translation changed everything. I can finally follow lectures in Korean without missing a beat.

Sophie Müller

Exchange Student, Seoul

Follows lectures

Our team has members in 4 countries. LecSync translates our meetings in real time — no interpreter needed.

Raj Patel

Engineering Lead

4 languages, 1 tool

The local translation mode is incredible for privacy. Everything stays on my device and still works beautifully.

Lisa Tanaka

Privacy Researcher

Private & fast
FAQ

Common Questions

1What's the difference between local and cloud translation?
Local translation uses Chrome's built-in AI to translate on your device (private, no data sent). Cloud translation uses server-side AI for broader language support and may use balance credits.
2Which languages are supported?
LecSync supports 60+ languages for transcription. Translation is available for major language pairs, with coverage expanding regularly.
3Is the translation accurate enough for professional use?
Yes, especially with custom terminology. You can add domain-specific terms to improve accuracy for technical, medical, legal, and other specialized fields.
4Can I translate pre-recorded content?
Yes! Use system audio capture to transcribe and translate any audio playing on your device — video calls, recorded lectures, podcasts, webinars, and more. No file upload required.
5Does local translation require Chrome?
Yes, the local on-device translation feature requires Chrome 131+. Cloud translation works on all modern browsers.

Cross Every Language Barrier

Start translating in real time — free plan available, no credit card required.

Try It Free

Perfect For

For Students — Real-Time Lecture Transcription & Translation

For Teams — Real-Time Meeting Transcription & Translation for Global Teams

Explore More Features

Real-Time Speech-to-Text Transcription for Lectures & Meetings

Multi-Language Support

AI Chat Assistant