Premium
Phoneme-level scoring
Kaldi GOP scores each phoneme so you see which exact sound slipped — not just a vague "try again".
Free
Pitch & intonation
Compare your pitch contour to the speaker's via DTW. See where you flatten or rise wrong, phrase by phrase.
Always free
Privacy-first
Whisper transcription and pitch analysis run locally on the free plan. Audio never leaves your device.
How it works
Three steps from video to better pronunciation
01
Open any YouTube video
Pin the extension on YouTube. We split the subtitles into shadowing-sized phrases automatically.
02
Listen, then repeat
The phrase plays once. Tap Record, repeat what you heard. Recording auto-stops when the phrase length is up.
03
See exactly what to fix
Color-coded words show pronunciation accuracy. Phoneme tips tell you which sound to focus on next.
Try it on a video you actually want to learn from
No credit card required. Install the extension and start in under a minute.
Get started free