Gappier
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Fill-in-the-gap with YouTube

Learn languages with
real content

Paste any YouTube URL — a travel vlog, a tech talk, a news segment — and practice by filling in the gaps of real subtitles in real time. Free. No sign-up. No limits.

Or try directly → Friends S1E1 · The Office

Why Gappier

Content you actually care about

No more scripted audio. Use vlogs, documentaries, podcasts, shows, or tech channels. The language real speakers use — not the textbook kind.

100% free, no strings attached

No subscription, no account, no daily video limit. Open your browser, paste the URL, and start practicing. That simple.

Instant transcription

We extract subtitles automatically and generate the exercise in seconds. No install, no setup. Works on any device.

Three steps. No excuses.

  1. Pick your video

    Any YouTube video with subtitles in the language you want to learn. A show episode, a programming tutorial, a TED talk — your call.

  2. Choose your difficulty

    Control what percentage of words get hidden. Start easy and raise the bar as you improve.

  3. Fill in the gaps

    The video plays. You listen and type the missing words in sync with the audio.

Learn languages doing what you already do

No need to change your habits. Take the content you already watch and turn it into real practice.

Cooking & food

Follow Binging with Babish or Tasty. Real culinary vocabulary in context: techniques, ingredients, measures.

Tech and programming

Fireship, Theo, ThePrimeagen. The technical vocabulary you need for docs, issues and code reviews in international teams.

News and current affairs

BBC News, DW English, CNBC. Formal and journalistic language comprehension to follow global debates.

Podcasts and interviews

Lex Fridman, How I Built This. Real conversational language at natural speed, no artificial intonation.

TV shows and movies

Friends, The Office, Modern Family. Humor, idioms, and everyday vocabulary that textbooks never teach.

Travel vlogs

Mark Wiens, Kara and Nate. Casual and cultural language mixed with travel vocabulary and everyday situations.

Your language skills improve with every episode

No apps to install. No credit card. Open the app and paste any YouTube URL.

Start practicing for free