FluentCue – Learn languages by watching films and series

Customizable subtitles and a popup dictionary to master your vocabulary while watching YouTube or Netflix. Open-source and free.

FluentCue helps you learn languages directly from subtitles while watching videos online. With FluentCue you can: - click subtitle words to open a translation popup - translate the full subtitle line without leaving the player - choose your translation language and translation provider - export words to connected learning tools - adjust subtitle appearance and playback-related behavior - open a full settings dashboard for translation, subtitle, and export preferences ### Core Features - Word translation popup for subtitle words - Full subtitle line translation - Quick settings inside the player - Full dashboard settings page - Export to supported learning services - Subtitle size, background, opacity, and progress settings - Optional secondary translation line for advanced learning scenarios ### Important Notes - Some features require you to be signed in to the target learning service in the same browser. - Some translation providers require your own API key. - Subtitle text and clicked words may be sent to the selected translation or export service to provide the feature you enabled. - Anki export requires Anki and AnkiConnect running locally on your computer.