JIVX turns lines from Japanese YouTube videos into prompts you answer by typing or speaking Japanese, with AI feedback on each attempt. Its new video-practice page has a no-account trial.

A Yokohama vlog becomes 15 exercises: reconstruct a sentence before the video reveals it, then compare polite and casual versions. This gives a familiar video a more active use than simply replaying it.

It is sentence-production practice rather than an open conversation. AI grades are feedback, not a validated proficiency test, and one early user reported a long wait when adding a new video.

Example: jivx.com/yt/N8XaLy1gWV0