"Free" in this category usually means one of three things: free forever but manual (Anki), free with a small monthly cap (most freemium services), or free to try with the useful output behind a paywall. The fastest way to tell them apart is to run one chapter you already know well through each and count the cards you would actually keep.
None of these tools is bad — they optimise for different things. Anki is a spaced-repetition engine you feed by hand. Quizlet is a library of sets other people already made. A general chatbot will happily write you twelve cards about anything. Lookfornotes is built for one job: get a usable first draft of cards out of a document you already have, in the time you would otherwise spend deciding what to write.
The comparison
| Option | What free includes | Cards come from | Getting your material out | Best for |
|---|---|---|---|---|
| Lookfornotes | One document through the converter without an account; 30 points on signup, no card | Your own PDF / notes, auto-extracted | Clean printable notes + self-test; export unlocks with credits (HK$38 / HK$88 / HK$198 one-off, no subscription) | Turning a real chapter into cards fast, Chinese or mixed-language material |
| Quizlet | Free account with manual card entry and basic review; AI-assisted features, offline and advanced modes sit in paid tiers | You type them, or you borrow a public set | Set lives on their platform | Vocabulary and shared class sets |
| Anki | Free and open source on desktop and Android; iOS client is a separate paid app | You write or import them; shared decks exist | Fully offline, your own files | Months-long retention; nothing beats its scheduling |
| ChatGPT and similar chatbots | Free tier with usage limits | It writes them in the chat window | Copy-paste, then clean up by hand | Five cards on one obscure topic |
| Freemium AI study services | Usually a monthly cap on pages or notes, then a subscription | Your uploads, auto-extracted | Varies; export is often the paid part | Casual trial |
On a phone, swipe the table sideways to see every column.
Free tiers and prices move constantly. This table reflects what each site showed in early October 2026 — check the current page before you rely on a number, ours included.
The 10-minute test that settles it
Demo documents are always clean. Your chapter is not. Run this on the real thing:
- Use a chapter you already know cold. You cannot judge extraction quality on material you have never read — you would be trusting the tool to grade itself.
- Count the cards you would keep. Generate the set, then tally keep / fix / delete. A 70% keep rate is good; 30% means you are doing the tool's job.
- Try your mixed-language document. If your material is Chinese with English terminology, most English-first tools stumble somewhere in the middle.
- Check the exit before you invest. Can you get your notes out on the free tier? Lock-in is invisible until your subscription lapses the week before exams.
Where "free" quietly ends
- A cap that is smaller than your term's workload. Three documents a month sounds fine until week nine.
- Export as the paywall. Reading your notes inside their app is free; printing them is not.
- A trial that needs a card up front and auto-renews — the most expensive kind of free.
- Manual card entry wearing an AI label. If you are typing every front and back, you are using Anki with extra steps and no scheduling.
Do you need AI generation at all?
If your exam is four months away and you like writing cards, Anki's scheduling is the stronger long-term tool — generate a first draft elsewhere, then import it rather than choosing between them. If your deadline is next week and the chapter is sitting unread, the bottleneck was never the scheduling algorithm: it was that no cards existed yet.
Run the test on your own chapter
Upload one PDF and count the cards you would keep. No account needed for the first document; 30 points free on signup, no card.
Questions
Which free AI flashcard generator is actually free?
Anki is free and open source, with no generation built in — you supply the cards. Lookfornotes lets you run one document through the converter without an account. Most other services are free up to a monthly cap, then subscription.
Can I use the output without paying?
On Lookfornotes you can generate cards and self-test free; the printable export is what credits unlock. Test the extraction first — there is no point paying for export of notes you would rewrite.
Is a subscription needed?
No. Lookfornotes credits are one-off packs (HK$38 / HK$88 / HK$198) that do not renew, so a heavy exam month does not lock you into a year.
Do these tools work with Chinese lecture notes?
Lookfornotes is built for Chinese and mixed Chinese-English documents. Test any other tool with a page of your own mixed-language notes before trusting it.
Will AI cards be as good as ones I write myself?
They are a first draft. Expected workflow: generate, delete the junk, rewrite the vague fronts. That is still faster than starting from an empty card, and the review pass is itself useful revision.