Renshi flashcards aren't a deck you download. Every card here was made by you, in one tap, from a real YouTube video, Netflix episode, news article or social post — and each one keeps the sentence it came from.
When the Renshi extension is running and you tap a word you don't know, that word becomes a card immediately. You don't stop to type anything. The card is saved with its pinyin, its definition, the full sentence it appeared in, and a link back to the page you found it on.
This is the difference between reviewing vocabulary and reviewing your vocabulary. The words in your deck are the words that actually blocked you from understanding something you wanted to understand.
Your cards are grouped by site, then by the individual page or video within it. So a card isn't a naked word on a blank background — you can see that you picked it up from a particular episode, and jump back to that exact page to re-read the line in context.
Renshi uses spaced repetition, which means each word comes back just before you'd forget it, and the gaps stretch out every time you get it right. After each card you grade yourself one of four ways:
Anything you don't mark as mastered also comes round again before the session ends — four more times if you forgot it, fewer as your grade improves — so a word never leaves a session on a failure.
After that first grading, the gap between reviews multiplies each time you succeed, and shortens whenever a word slips. Words you find hard stay in heavy rotation; words you know get out of your way. You are never manually scheduling anything.
Install the extension, then watch or read something you'd have wanted to watch or read anyway. Tap the words that stop you. Come back here when you have a handful saved — there's nothing to set up in between.
Not sure what to watch first? We keep two curated libraries of material worth studying: Taiwanese media (traditional characters) and Mainland Chinese media (simplified). Or start at the Renshi home page.