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Ttaku

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Ttaku — Demo video

Ttaku helps you speak fluent Japanese by watching anime. It's a chrome extension that currently works on Crunchyroll, with Japanese dubbed audio and English subtitles for English speakers. Ttaku displays romaji, or the roman characters to make speaking in Japanese easy after a native sentence or or phrase is spoken in a video. Ttaku automatically pauses and listens for the users correct pronunciation afterwards in order to continue playing the video. If a user needs help with pronunciation, the phonetic spelling is also available and can be displayed.

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