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Keep learning, one sentence at a time.
My videos
Pick up where you left off or explore a lesson.
Saved lessons don't use API credits when you practice. Only site administrators can import, rename or trash lessons. Trashed lessons can be restored.
Tap any Japanese sentence to play from that time. Tap a word for its meaning. Use Loop to repeat a sentence and Aa to change reading options.
Choose a lesson to load YouTube
Click a sentence to seek there. Turn on Loop and repeat until you can shadow the Japanese audio. Click a word for meanings.
Interactive Transcript
0 sentencesSentence synchronization is active. For precise word timing, import audio-derived timestamps. Unverified estimates are off by default.
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Audio word alignment
Export the current Japanese transcript JSON, then align it against an audio file you own or have permission to use. Use the included free local helper. Upload the resulting JSON here. No API credits are spent.
Audio must match the YouTube timeline from 00:00. Timing can still be imperfect; always review.