The Best Way to Make Flashcards

Fastest and best aren't really the same question. The fastest way is about shaving seconds off a single card. This one is about the method that actually produces cards you're still glad you made three weeks from now, and the answer comes down to one thing: you make the card the moment you notice the information matters, not later, not from memory, right then.

There have been so many times where I'm reading a textbook, or going through my professor's slides, and I'm not taking flashcards, I'm not even taking proper notes, and I come across something that's clearly important. And in the moment, I think to myself, "okay, I'll jot this down later." I keep reading. Later actually comes, that night or the next morning, and I remember, vaguely, that there was something I was supposed to write down. I just don't remember what it was anymore. That's not really a personal memory failure, that's just what happens to almost anything you don't act on close to the moment you noticed it mattered in the first place. The information doesn't survive the gap between "this matters" and actually doing something about it.

So the best way to make a flashcard is right there, in the moment you're already reading, not reconstructed later from whatever you can still remember.

What making cards "in flow" actually means

This is the whole idea behind the free Chrome extension, and it's exactly what it's built to do. You make the card without leaving what you're reading, without opening a new tab, without switching over to some other app and trying to remember what you just saw well enough to type it out again. Not a separate "flashcard session" you bolt onto the end of the week, where you sit down with a stack of highlighted PDFs and try to figure out what past-you thought was important. The card gets made while the context is still sitting in your head, while you can still see the sentence it came from.

The keybinds, and why they matter more than they sound

The extension has a set of keyboard shortcuts, and honestly the shortcuts themselves aren't the interesting part. What matters is that none of them ask you to touch the mouse or leave the page you're on. That's the whole design. Friction is what kills in-flow capture, every single time. If making a card takes four clicks, a tab switch, and finding the right folder, you'll tell yourself it can wait until later, and then, like the textbook example above, it just won't happen.

• Alt+Shift+Q sends selected text to the front of the card (the term or question)
• Alt+Shift+A sends it to the back (the definition or answer)
• Alt+Shift+S saves the current card
• Alt+Shift+G hands whatever's in the sidebar to the AI and asks it to generate the card
• Alt+Shift+1 / 2 / 3 clear the front, the back, or the whole card
• Alt+Shift+T cycles focus between fields
• Alt+Shift+E toggles the explanation field on or off

None of this is complicated, and it isn't supposed to be. You keep reading, you hit two keys without really breaking stride, and a card exists that didn't exist ten seconds ago.

Using AI properly (and why there's a stigma around it)

There's a real stigma around AI-generated flashcards, and honestly, it's earned. You paste a whole PDF in, hit generate, and never actually look at what came back. What you get is a pile of vague cards that don't test anything specific. "Discuss the importance of X" isn't a flashcard, it's a prompt that happens to have a front and a back glued onto it.

Done purposefully though, AI generation is genuinely good, and the difference is custom instruction profiles. You sit down once and write out your instructions, things like "cloze deletion only," or "keep answers under one sentence," or "always name the specific term, never say 'important concept.'" You save that as a profile. Then you can switch between profiles depending on the class, or the card style you actually want that week. Every generation follows your rules instead of whatever the AI defaults to on its own. That's the real gap between "the AI made me a vague card" and "the AI made me a card the way I actually study."

When in-flow capture isn't practical: making cards in bulk

Sometimes you're not sitting with a laptop next to the material while you read it. Or you've already got a full set of typed notes sitting there and you don't want to go back and recapture every idea one at a time. For that, I actually do something different. I give my notes to Claude and ask it to output flashcards in a specific format, then I import the result directly instead of retyping any of it myself.

Nebulearn's import wizard has a copy-paste prompt built in for exactly this reason, so you're not left guessing at what format it actually wants. The import guide walks through what that looks like, and where that prompt shortcut actually lives.

Putting it together

Two different situations, two different methods. You're reading something right now and something in it matters: capture it immediately with the extension, don't wait, don't tell yourself you'll remember. You're sitting on a finished pile of notes with nothing built from them yet: generate in bulk with AI and import it in one pass. Neither one really matters much if you don't come back and review on a schedule afterward, which is really the other half of all this. How to study with spaced repetition covers that part.