AI-Powered Instant Video Dubbing & Transcription
Watch YouTube and web videos dubbed in your native language with AI. Transcribe subtitles, run on-device neural voice models, and enjoy zero-latency audio.
For desktop Chrome
Türkçe / narration
Buradan bakınca her şey sessizleşiyor.
The same world.
30 seconds / A short look
Pre-made illustrative voices. Not YouDub engine output.NASA / JSC
Seamless Across Global Learning & Video Platforms:
Dynamic tempo matching tailored to original speaker cadence
Supertonic ONNX runs locally; your data never leaves your disk
On-device with Supertonic ONNX, wider reach with browser voices
Instant license key delivery with transparent global billing
Test the YouDub extension's Transcript Studio and Player Controls right here. Switch target languages, listen to speech engines, and watch real-time audio synchronization.
Inspect and refine segments extracted via on-device ASR (Whisper) with millisecond precision.
04 CUES / 000 CHARS
| Timecode | Original Transcript (Source) | Target Translation (Dubbing Line) | Status |
|---|---|---|---|
| 00:00 - 00:04 | Welcome everyone, today we explore client-side machine learning. | Synced | |
| 00:04 - 00:09 | Artificial intelligence models can now run securely right inside your browser. | Synced | |
| 00:09 - 00:15 | With zero latency and local speech synthesis, video dubbing feels completely natural. | Playing | |
| 00:15 - 00:21 | You can synchronize translated speech to match the speaker's original cadence. | Queued |
Active Tab: youtube.com
Translation and subtitle preview updates immediately for the selected language.
System Default Voice (en-US)
Directly accesses your device and browser's native speech synthesizer. No misleading or fabricated names.
Why choose on-device local architecture over server queues, token-drain subscriptions, and privacy risks?
Traditional Cloud Extensions
Upload to Cloud Server
Watched video audio and transcripts are streamed and stored on third-party remote servers. Low privacy assurance.
YouDub Studio
100% On-Device Privacy
Whisper & Supertonic ONNX run locally on your own CPU and RAM. Audio data never departs your device.
Traditional Cloud Extensions
Hidden Token Depletion
Even with a ~$6/mo subscription, premium AI models (GPT-4, Claude) demand continuous credit recharges per video.
YouDub Studio
Zero Hidden Costs · Flat Pricing
Flat $29/year or $59 Lifetime. Zero token-drain anxiety. Unlimited local neural synthesis, bring your own API key at pure cost.
Traditional Cloud Extensions
5-10 Min Processing Queues
Queues non-captioned videos on remote servers; forces users to wait 5-10 minutes for an email notification.
YouDub Studio
0ms Live Instant Sync
Zero wait time. Synthesizes synchronized dubbed speech on-the-fly directly inside your player as playback begins.
Traditional Cloud Extensions
Vendor Lock-in
Locked exclusively into the vendor's proprietary, metered cloud endpoints with no external model integration.
YouDub Studio
Total Freedom & Bring Your Model
Run Ollama, LM Studio, or llama.cpp locally at zero cost; or directly link your own OpenAI, Claude, DeepL API keys.
Traditional Cloud Extensions
Zero Offline Capability
Fails entirely whenever internet drops or remote vendor infrastructure encounters outages.
YouDub Studio
5-Day Offline Grace Tolerance
Features a 5-day offline tolerance grace period; keeps running on planes, trains, and disconnected networks.
No monthly subscription hassle. The lifetime license is $59 for the first 500 purchases, then $79 — a one-time payment.
Ready the moment you install. No credit card.
$0/ forever
Ideal for individual viewers, students, and podcast enthusiasts seeking 1 full year of uninterrupted dubbing.
$29/ year
Includes all Pro features and version updates for 365 days
LAUNCH OFFER · FIRST 500 PURCHASES
Pay once. Use it forever.
$59 for the first 500 purchases, then $79. No subscription.
Discount applied automatically. No code needed.
Polar.sh Secure Payment Infrastructure
All licenses are securely processed through Polar.sh with instant license key generation.
No complicated setup. Paste your purchased license key into the extension once to unlock all Pro features instantly.
YOUDUB-... is delivered instantly on screen and via email.YouDub Settings - License Panel
Device Activation Simulator
Paste your license key delivered by Polar.sh below to test the activation flow in real time:
Status: Free Tier (Keyless Basic Mode)
No key yet? Explore the plans
Note: The license is bound to this device. If you lose internet access, Pro features remain active for 5 days offline.
Everything you need to know about licensing, Polar.sh payments, voice engines, and technical requirements.
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