Memento

mpv-based video player built for studying Japanese via subtitles and dictionaries.

Desktopfree

Memento is a free, open-source video player built specifically for studying Japanese through native video content. It provides grammar-aware subtitle search, dictionary lookups with Kanji cards, and one-click Anki card creation, aimed at learners doing immersion-based sentence mining.

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Behind the summary, Matchbox keeps a richer profile of Memento - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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