Memento is a free and open source, mpv-based video player that makes studying Japanese easier with a built in popup dictionary, Anki integration, and more.

Features:

• Memento uses Yomichan's dictionary format and supports all the same dictionaries
• Automates Anki card creation through AnkiConnect
• Grammar aware search matches terms in subtitles regardless of most inflections
• Supports mpv plugins, upscalers, and shaders
• Supports mpv configuration files such as input.conf for rebinding keys and mpv.conf for configuring mpv
• Supports streaming from many websites through youtube-dl