PhonetiSync LogoPhonetiSync
Learn Languages Through Sound & Obsession

Fall in love with the music.
Own the language.

PhonetiSync injects sub-second phonetic subtitle guides and translation layers directly onto YouTube. Sing along instantly to C-Pop, J-Pop, and anime themes, then watch the scaffolding fade as you master the lyrics.

Explore Seeded Demos

The 3 Steps to Fluency

1

Sing it first

Immediate vocalization builds neurological muscle memory. Phonetic approximate spellings bypass Pinyin/Romaji friction, getting you singing in key in seconds.

2

Understand it next

Tap any line in the extension sidebar to fetch natural context-aware English translations on-demand. Bridge the gap between acoustic sound waves and meaning.

3

Own it eventually

Track your play logs. As your familiarity grows, the phonetic guidance track fades away progressively, leaving you with original native character scripts.

Seeded Showcase Songs

These pre-cached tracks require zero credits or user accounts to experience. Activate the extension and play immediately on YouTube.

JapaneseSeeded

Lemon

Kenshi Yonezu

yume naraba dore hodo yokatta deshou

夢ならばどれほどよかったでしょう

Sing on YouTube
MandarinSeeded

喜欢你 (Xi Huan Ni)

Beyond

shee yee dai fung sup tau wong fun dik gai do

细雨带风湿透黄昏的街道

Sing on YouTube
JapaneseSeeded

First Love

Hikaru Utada

sa-ee-go no kee-soo wa ta-ba-ko no ka-o-ree ga shee-ta

最後のキスはタバコの香りがした

Sing on YouTube
MandarinSeeded

稻香 (Rice Field)

Jay Chou

duei chee-jye shwo-sa-ba yo sye shee-wahn jyo tway-chwa

对这个世界如果你有太多的抱怨

Sing on YouTube