FlexiLingo — Learn Languages While You Watch

Stop watching passively. Click any word in YouTube, TED or BBC subtitles to learn it — and remember it forever.

Every video you watch is a language lesson. FlexiLingo makes it one. Most learners watch hundreds of hours of content and remember almost none of it. Watching is not studying — not unless something turns the words you don't know into words you own. That is the entire job of FlexiLingo. WHAT YOU GET Open Studio on any supported video or podcast and a full learning workspace appears over the player: Interactive subtitles — Click any word for an instant definition, translation and pronunciation. No pausing, no second tab, no copy-pasting into a dictionary. See what is actually worth learning — Every word is graded by CEFR level, A1 to C2. Instead of guessing, you see at a glance which words are above your level and worth your attention, and which ones you already know. Save it once, remember it for good — Add words to your decks in one click and review them with spaced repetition, the method built around how memory actually works. The word you met in a video today comes back exactly when you are about to forget it. Understand the whole episode, not just a line — Get a full breakdown of the content: vocabulary, grammar, collocations, difficulty level, and how much of it is already within reach for you. Ask Lena, your AI tutor — Ask why a sentence works the way it does and get a plain-language answer without leaving the video. Translate and grammar on demand — Full-sentence translation and grammar explanations, in place. Podcasts too — Audio with no subtitles is transcribed automatically, so you can read along and learn from it like any other lesson. WHERE IT WORKS YouTube, TED, BBC Learning English, BBC Audio, CBC, and Spotlight English — with new platforms added regularly. HOW IT WORKS 1. Open a video or podcast on a supported site. 2. Click FlexiLingo in the player. 3. Watch. Tap the words you don't know. Review them later. WHO IT IS FOR Learners who have outgrown textbooks and want the real thing — the talks, the news, the shows and the podcasts they would watch anyway. FlexiLingo does not ask you to find time to study. It puts the studying inside the time you already spend.