LocalSub Pro
Unlock unlimited YouTube transcription and translation, unlimited SRT and TXT export, and all 19 target languages — with the AI still running entirely inside your browser.
Monthly
$12.99 / month
Unlimited videos - No 5-per-day cap on transcription or translation
100% local AI - Whisper and NLLB-200 run in your browser, your audio is never uploaded
All 19 target languages - From Chinese and Japanese to Arabic, Hindi and Vietnamese
Unlimited SRT and TXT export - Bilingual, translation-only or original, for any video
Priority support - Fast help when needed
Clickable transcript - Click any line to jump the video straight to that moment
Annual
$129 / year
Best value for regular viewers
Unlimited videos - No 5-per-day cap on transcription or translation
100% local AI - Whisper and NLLB-200 run in your browser, your audio is never uploaded
All 19 target languages - From Chinese and Japanese to Arabic, Hindi and Vietnamese
Unlimited SRT and TXT export - Bilingual, translation-only or original, for any video
Priority support - Priority support included
Clickable transcript - Click any line to jump the video straight to that moment
Lifetime
$79 one-time
Pay once, keep it forever
Lifetime Pro access - One payment, no renewals
All Pro features - Everything unlocked from day one
Future updates - New models and languages included at no extra cost
Built for daily viewers - Best fit if you watch foreign-language YouTube every day
No subscription - No recurring billing to manage
Clickable transcript - Click any line to jump the video straight to that moment
Frequently Asked Questions
What is LocalSub?
LocalSub is a Chrome extension that transcribes any YouTube video and translates the subtitles into your language. Both the speech model (Whisper) and the translation model (NLLB-200) run locally inside your browser, so no audio is uploaded anywhere. The free tier covers 5 videos per day; Pro removes that cap entirely.
What are the free plan limitations?
The free plan lets you transcribe and translate up to 5 videos per day. Every feature is included at that level — all 19 languages, the bilingual side panel, and SRT and TXT export. Pro simply removes the daily cap.
Which plan should I choose?
The Lifetime plan at $79 is the best value if you watch foreign-language YouTube regularly. Annual Pro at $129/year suits users who prefer a subscription. Monthly at $12.99 is a good way to try Pro before committing.
How do I activate Pro after purchase?
After payment, copy your token, open a YouTube video, open the LocalSub side panel, paste the token into the Pro field, and click Verify.
Is my payment secure?
Yes. Payments are processed securely through Stripe. We do not store your card information.
Do you offer refunds?
Yes. If you are not satisfied, contact support@aikc.net within 14 days and we will review the request.