SubSmith lets language learners turn personal videos into Anki flashcards offline

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A developer learning Japanese has released SubSmith, a desktop app designed to streamline language study from personal video and audio files. The tool generates transcripts locally without sending media to external APIs, and lets users look up words, replay lines, and save sentences with their original audio context. Learners can export saved sentences directly as Anki flashcards, removing the need to juggle multiple apps during study sessions. The app works with any user-owned media — including anime, podcasts, and lectures — rather than being tied to a specific streaming platform. The developer is currently seeking feedback on usability pain points, including whether requiring an account before starting the free trial creates significant friction for potential users.

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