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Automatic generation of flashcards and other exercises using

Learn any language with content you already watch.

Paste a YouTube URL and LingoFuse generates vocabulary flashcards with real clip audio and context from the video — not generic word lists.

Flashcards from YouTube videos

YouTube flashcards and spaced repetition

Review cards in SRS decks so vocabulary from your favourite creators sticks long after you watch. Know it, not sure, or don't know — the deck adapts.

Spaced repetition with YouTube

Reliable and robust tool to achieve your goals.

Learn

you want with content that you already watch.

any language

with content you already watch.

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You control which task part students see and play the video from your screen. Students follow along without their own video playback.

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Content you submit for generation, such as YouTube links, uploaded MP4 files, text prompts, and language selections.

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On the website, subscription payments are processed by Stripe. We do not store your full payment card details on our servers. Stripe processes payment-related data according to Stripe’s policies.

On the iOS app, auto-renewable subscriptions are purchased through Apple In-App Purchase. Apple processes payment information for those purchases; Apple’s handling of that data is described in Apple’s privacy policy and terms. We receive information from Apple that we need to validate access and manage subscriptions.

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We share data only as needed to run the Service, for example with service providers that help us with authentication, payments, hosting, storage, and video processing. We also use Google’s generative AI services (Gemini) to create tasks and exercises from your Inputs; when you request generation, relevant Input (such as prompts, language selections, and material derived from submitted video or links) may be sent to Google for processing, in line with Google’s terms and policies. We do not sell your personal data. We may also share data to comply with legal obligations. For our mobile app we use Sentry for crash and error reporting and PostHog for product analytics; both are configured to store data in the European Union and receive only a pseudonymous account identifier, not your name or email.

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Title

Start making flashcards from YouTube

Frequently asked questions

How to make flashcards from a YouTube video

Spaced repetition (SRS) schedules reviews right before you forget a word. LingoFuse builds SRS decks from the flashcards generated from your YouTube clips — so vocabulary from creators you follow moves into long-term memory, not a one-time watch.

Spaced repetition with YouTube content

You remember faster when you hear the word in a scene you care about. LingoFuse keeps the clip, translation, and sentence context on each card — closer to immersion than drilling isolated words from a textbook.