Photosynthesis
Light reactions: thylakoid membranes
make ATP + NADPH, release O2
Calvin cycle in the stroma
RuBisCO fixes CO2 onto RuBP
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Cardly is a study assistant that works from your own material. Give it lecture notes, slides or a scanned chapter, and it makes flashcards and quizzes from them, saves your PDFs for next time and keeps you practising until it sticks.
Free to start, no payment details needed.
Photosynthesis
Light reactions: thylakoid membranes
make ATP + NADPH, release O2
Calvin cycle in the stroma
RuBisCO fixes CO2 onto RuBP
Where in the chloroplast does the Calvin cycle take place?
Where in the chloroplast does the Calvin cycle take place?
In the stroma.
Which molecule does RuBisCO fix?
One question to look at again while it is fresh.
Retry 1 missedPaste your notes and add up to ten PDFs in one go. Cardly reads them together, writes in the language of your notes and keeps your PDFs for the next deck.
Flashcards for learning, quizzes for checking. Every answer comes with the reason and where it came from in your notes.
Flip it, then say how well you knew it. The hard ones come back at the end, and again in tomorrow's review.
Instant feedback on every question, then your score and a retry of just the ones you missed.
Rate each card after you flip it. Cardly brings it back right before you would forget it, so every day you only go over what needs it.
The cards that are due again and a few new ones, from all your decks, in a few minutes a day.
The ones you know wait longer every time: a few days, then a week, then a month.
Set the date, and Cardly paces your decks so every card is started by the day before, then offers a practice quiz from your files. Free plans one exam at a time, Pro up to 10.
Your score after every quiz, how you rated every card, and a streak that shows whether you have studied today.
Retry just the two you missed, then take it again shuffled.
Retry 2 missedCardly writes the first draft. You decide how it studies with you.
Choose what the questions focus on, how long the answers are and how hard it gets, or add instructions like the exam you are studying for.
Each question is asked in new words every time, so you learn the idea instead of the sentence.
Write decks and quizzes by hand, or paste a list you already have. They never count toward the free limit.
Edit anything, put it in the order you want and keep your own notes on every deck.
Group decks and quizzes by subject, course or exam.
Keep your slides and handouts in Cardly and make new decks and quizzes from them any time. 10 PDFs free, 1 GB with Pro.
Apps for iPhone and Android, with the same account and everything you have made. Make a quiz from a PDF on your phone, study on the bus, and pick up on your laptop where you left off.
Decks, quizzes, your files, your daily review, exam plans, folders, your streak and card style follow you between the apps and the website.
Flip with a tap, answer with your thumb, and save a deck or quiz from a link someone sent you.
A nudge when you have not studied for a few days, and before your streak runs out.
Everything you need to study well is free. Pro is for making more, faster, in exam season.
Study properly, for free
For exam season, cancel any time
| Feature | Free | Pro |
|---|---|---|
| Make | ||
| AI decks and quizzes | 10 a month | Unlimited |
| Cards or questions in each | Up to 20 | Up to 80 |
| Saved decks and quizzes | Unlimited | Unlimited |
| Notes and up to 10 PDFs at once | Included | Included |
| Scanned PDFs | Included | Included |
| Keep PDFs in Your filesMake new decks and quizzes from them any time, up to 50 MB each | 10 PDFs | 1 GB |
| Seven kinds of quiz questions | Included | Included |
| Write your own decks and quizzesUp to 300 cards each, without using a generation | Included | Included |
| Cards in the language of your notes | Included | Included |
| Choose from 15+ languages | Not included | Included |
| Your own card styleFocus, answer length, difficulty and your own instructions | Not included | Included |
| Study | ||
| Flip-card study modeShuffle, keyboard shortcuts, explanations and sources | Included | Included |
| Quizzes with instant feedbackScore at the end, retry just the ones you missed | Included | Included |
| Reworded questions while studying | Not included | Included |
| Daily reviewRate cards Easy, Okay or Hard, and each comes back right before you would forget it | Included | Included |
| Exam plansPaced to your exam date, with a practice quiz at the end | 1 at a time | Up to 10 |
| Review just the hard cards | Included | Included |
| Study stats and day streak | Included | Included |
| Organise | ||
| Edit any card or question | Included | Included |
| Reorder cards and keep notes on a deck | Included | Included |
| Folders | Not included | Included |
| Share and export | ||
| Save decks and quizzes others share with you | Included | Included |
| Share your own with one short linkSee how often it was opened and saved | Included | Included |
| Export to .txt and Anki | Included | Included |
Paste your notes, add up to ten PDFs, or both at once. Slides, handouts, textbook chapters and scanned pages all work, and Cardly writes in the language of your notes. Keep your PDFs in Your files to make more decks and quizzes from them later.
Yes. The free plan gives you 10 AI decks or quizzes a month with up to 20 cards or questions each, and keeps everything you make. The daily review, hard-card review, your streak and stats, share links and a plan for your next exam are all free. Decks and quizzes you write yourself never use a generation.
Pro is $5 a month, or $40 a year, with no monthly limit, up to 80 cards or questions each, plans for up to 10 exams and every Pro feature. You can cancel any time from your account.
Rate each card after you flip it. Hard cards come back the next day and the ones you know after longer and longer gaps, so each day's review only asks for what you are about to forget. It is free on every plan.
Add an exam date and Cardly paces your decks so every card is started by the day before, and offers a practice quiz from your files at the end. Free plans for one exam at a time, Pro for up to 10.
Cardly writes every card and question from the material you give it, and most answers come with a short reason and the page or slide they came from, so you can check. You can edit anything.
Yes. Export any deck as a text file or in a format Anki imports, or export all your decks at once.
Apps for iPhone and Android are coming soon to the App Store and Google Play, with the same account. Until then, Cardly works in the browser on any phone, tablet or computer.
Your notes are only used to make your cards and questions, and are not stored. A PDF is kept only if you save it to Your files (10 on the free plan, 1 GB with Pro), and you can delete it any time. What Cardly makes is saved to your account, and you can delete your account and everything in it at any time.
Your first deck or quiz takes about a minute.
Add your notes below to make your first deck
Today's review
Your flashcards will appear here after generation
You have gone through every card. Want to go again?
Legal
By accessing or using Cardly ("the Service"), you agree to be bound by these Terms of Service. If you do not agree, please do not use the Service.
Cardly is an AI study assistant that turns your notes and study materials into flashcards and quizzes, helps you practise them, and can keep the PDFs you study from in Your files. The Service is provided "as is" and may change at any time.
You are responsible for maintaining the confidentiality of your account credentials and for all activity that occurs under your account. You must provide accurate information when creating an account.
You agree not to use the Service to upload content that is illegal, harmful, or violates the rights of others. Only upload notes and files you have the right to use. You agree not to attempt to reverse-engineer, scrape, or abuse the Service.
Free accounts can make 10 AI generations (decks or quizzes) per calendar month, keep every deck and quiz they make, plan for one exam at a time, and keep up to 10 PDFs in Your files. Pro accounts can plan for up to 10 exams. Pro accounts can keep up to 1 GB of PDFs. Each PDF can be up to 50 MB. If a Pro subscription ends, the files already kept stay in your account, but new ones can only be added once you are within the free limits. These limits may change at any time with reasonable notice.
Pro is paid through Stripe, either monthly or yearly, and renews automatically at the end of each period until you cancel. You can cancel at any time from your account; Pro then stays on until the end of the period you have paid for.
The flashcards and quizzes made from your notes, and the files you keep in Cardly, are yours. Cardly does not claim ownership over your content and only stores it to provide the Service to you. The Cardly application, branding, and underlying technology remain our property.
Your use of the Service is also governed by our Privacy Policy.
Cardly is provided without warranties of any kind. We are not liable for any damages arising from your use of the Service, including loss of data or study materials. Please keep your own copies of the files you upload.
We reserve the right to suspend or terminate accounts that violate these terms. You may delete your account at any time from your account settings.
We may update these terms at any time. Continued use of the Service after changes constitutes acceptance of the new terms.
Questions about these terms? Email us at hello@studywithcardly.com
Legal
We collect your email address and username when you sign up. If you sign in with Google or Apple, we receive the email address they share with us (Apple can give us a private relay address instead of your real one). We store the decks and quizzes you make so you can access them later, and the PDFs you choose to keep in Your files. We do not collect payment information directly; that is handled by Stripe.
When you create an account, we also save where your visit came from: the campaign tags in the link you followed (such as utm_source=tiktok), the name of the website that linked to Cardly (for example reddit.com, never the full address) and the first page you saw. This tells us which of our posts, links and ads bring students to Cardly.
Your email is used to authenticate your account and send emails about it (such as email confirmation, password resets and your Pro subscription). Your decks, quizzes and files are used solely to provide the Service to you. Where you came from is only counted to decide where to post and advertise, and is deleted with your account.
Your notes and PDFs are sent to an AI service to make your flashcards and quizzes. Notes you paste are not stored. A PDF is only stored if you keep it in Your files (you choose this when you add it, and you can turn it off). Otherwise, only the generated cards and questions are saved.
PDFs you keep in Your files are stored privately with our hosting provider and can only be opened from your own account, through links that stop working after an hour. You can rename or delete any of them at any time, on the website or in the app, and they are deleted straight away when you delete your account.
We do not sell your data. We share it only with the services that run Cardly for us: Supabase (database, files and sign-in), Vercel (website hosting), Stripe (payments), Resend (emails), the AI service that makes your cards and questions, Google or Apple when you sign in with them, and Sentry for error reports (see section 8). If you accept advertising cookies, TikTok, Meta and Reddit receive the information described in section 7.
Your data is retained as long as your account is active. When you delete your account, your decks, your saved PDFs, your profile and your sign-in details are deleted straight away. Technical logs, which record events such as generations, payments and emails sent (never your notes or files), are kept for up to 90 days and then deleted automatically.
One exception keeps the free plan fair. If you were on the free plan and had already created decks that month, we keep one short note until the end of that calendar month. It holds a scrambled code made from your email address (the address cannot be read back from it) and the number of free decks you used that month, and nothing else. If you sign up again with the same email during that month, your free count continues instead of starting over. The note is deleted automatically when the month ends. Accounts on Pro do not get this note.
Needed. Cardly keeps your sign-in session and your settings (such as the side your cards start on and your cookie choice) in your browser, and remembers where your visit came from for that tab only until you sign up or close it. These are needed for the Service and are always on.
Advertising, only if you accept. When we advertise, the TikTok, Meta (Facebook and Instagram) and Reddit pixels may set cookies and tell those companies which Cardly pages you visit and whether you signed up or started Pro, so they can tell us which ads worked. They use this under their own privacy policies. Nothing like this loads unless you choose Accept all or switch on Advertising, and you can change your choice at any time with Cookie settings at the bottom of the page.
When something breaks on the website, in the app or on our servers, a short error report goes to Sentry so we can fix it: what went wrong, where, your browser or device, and your account's id. Reports never include your notes, files, cards or email address, and Sentry keeps them for up to 90 days.
You have the right to access, correct, or delete your personal data at any time, and to withdraw consent to advertising cookies whenever you like. You can delete your files, or your account and all associated data, directly from the app. For other requests, contact us at hello@studywithcardly.com.
We use industry-standard security practices including encrypted connections and secure authentication. However, no system is completely secure.
Privacy questions? Email us at hello@studywithcardly.com
About Cardly
Cardly started as a personal project born out of frustration. Spending hours turning lecture notes into flashcards by hand made no sense when the actual studying was what mattered.
So we built a study assistant that handles the tedious part. Give it your notes, slides or a scanned chapter, and it makes focused flashcards and quizzes from them in about a minute. The goal has always been simple: less time making study material, more time actually learning.
Flashcards or a quiz from your notes and up to 10 PDFs at once, scanned pages too, in the language of your notes.
Flip cards, take quizzes with seven kinds of questions, and a daily review that brings each card back before you forget it.
Your decks, quizzes and PDFs stay in your account, with Your files ready for the next deck.
Works in any browser today, with apps for iPhone and Android on the way. One account for all of it.
Questions, feedback, or just want to say hi? Always happy to hear from fellow students.
hello@studywithcardly.comHelp
Answers to the questions students ask most. Can't find yours? Email hello@studywithcardly.com.
Cardly is a study assistant. Give it your notes or PDFs and it writes flashcards or a quiz from them in about a minute. Then you study them: flip cards, take quizzes, and let the daily review bring each card back right before you would forget it.
On your dashboard, choose Flashcards or Quiz under Make a deck, paste your notes or add PDFs, and press Generate. The cards appear one by one and the deck is saved to your library when it is done.
Flashcards are best for learning: you test yourself one card at a time and they come back in your daily review. A quiz is best for checking what you know before an exam: you answer questions, see right away if you got them, and get a score at the end.
Yes. Open Account and choose Replay the tour. The study tips show again the next time you open a deck.
Paste notes, add up to 10 PDFs, or both at once. Slides, handouts, textbook chapters and scanned pages all work, and each PDF can be up to 50 MB. Cardly writes in the language of your notes, and with Pro you can choose from more than 15 languages.
On the free plan, 10 decks or quizzes a month with up to 20 cards or questions each. The count starts again on the 1st of every month. Pro has no monthly limit and goes up to 80 cards or questions each.
Yes. Use Write a deck or Write a quiz on the dashboard, card by card or by pasting a list you already have. What you write yourself never uses one of your free generations.
Open the deck from your library. Edit cards changes any card or question, Reorder puts them in your own order, and the notes box keeps your own notes with the deck. Ratings and review dates stay with a card when you edit its words.
Every card comes from the material you give Cardly, and most answers come with a short reason and the page or slide they came from, so you can check. If something is off, edit it.
Today's review on your dashboard collects the cards that are due again from all your flashcard decks, plus up to 15 new cards a day. Rate each card after you flip it and Cardly works out when it comes back. It is free on every plan.
Hard brings a card back tomorrow, and once more at the end of today's review. Okay and Easy push it further out every time you know it: a day, a few days, a week, then longer, up to a year. Easy pushes it further than Okay. Each button shows when the card will come back.
Yes. When you are caught up, Learn new cards adds 10 more. You can also study any deck from start to finish whenever you like, and the ratings you give there count too.
Add an exam in Today's review: give it a name, the date and the decks to learn. Cardly spreads the new cards of those decks over the days you have, so every card is started by the day before, and makes sure no card is put off past the exam. On the last day it offers a practice quiz made from the PDFs those decks came from. The free plan plans for one exam at a time, Pro for up to 10.
In study mode, Space flips the card, the left and right arrows move between cards, and 1, 2 and 3 rate a flipped card Hard, Okay or Easy. In a quiz, the number keys pick an answer and Enter checks it and moves on.
A Pro option in study mode. Every question is asked in new words each time, so you learn the idea instead of recognising the sentence. The original question is on the back of the card.
A day counts toward your streak once you turn over a card and move on, or answer a quiz question (just opening a deck or skipping cards does not count). A new streak day gets a short celebration when you finish. The flame at the top of the dashboard fills in once you have studied today, and Stats shows the full picture. It is free on every plan.
A place to keep the PDFs you study from, so you can make new decks and quizzes from them later on any device. Keep new PDFs when you add them to a deck, or add them on their own in Your files in your library.
10 PDFs on the free plan and 1 GB with Pro. Each PDF can be up to 50 MB. You can rename or delete any of them at any time.
Only you. Files are stored privately and can only be opened from your own account, and they are deleted straight away if you delete your account.
Unlimited generations with up to 80 cards or questions each, 1 GB for your PDFs, plans for up to 10 exams, card style, 15+ languages, reworded questions and folders. It is $5 a month, or $40 a year. Everything else, from the daily review to share links, is free.
All of them. Every deck and quiz you make, generate or save stays in your library on every plan. The free plan limits how many you generate each month, not how many you keep.
Open Account and choose Manage Subscription. You can cancel there at any time, and you are not charged again.
Everything you made stays in your account, including your files and exam plans. The free limits apply again to anything new, and your next exam keeps its plan while the others wait until Pro is back.
Your username is in Account. To change your password, sign out and choose Forgot password on the sign-in page, and Cardly emails you a link.
Apps for iPhone and Android are coming soon, with the same account and everything you have made. Until then, Cardly works in the browser on any phone, tablet or computer.
Yes. Use Continue with Google on the sign-in page, on the website or in the iPhone app. Use the same way to sign in every time, so you land in the same account and library.
Yes. Use Continue with Apple on the sign-in page, on the website or in the iPhone app. If you chose Hide My Email, Apple forwards Cardly's emails to you. Use the same way to sign in every time, so you land in the same account and library.
Your notes are only used to make your cards and questions, and are not stored. A PDF is kept only if you save it to Your files. Read more in the Privacy Policy.
Only the ones needed to keep you signed in and remember your settings. Advertising cookies, which tell TikTok, Meta and Reddit when one of our ads led to a sign-up, load only if you accept them. Change your choice any time with Cookie settings.
Open Account and choose Delete my account and all data. Your decks, files and profile are deleted straight away, and a Pro subscription is cancelled first so you are never charged again.
Nothing matches that. Try another word, or email hello@studywithcardly.com.
Email hello@studywithcardly.com and you will hear back, usually within a day. Found something broken? Report a bug.
What's new
The bigger updates, newest first.
The free plan makes more, and Pro costs less if you pay for the year.
Everything you need to study well is now on the free plan.
Cardly now remembers when to show you each card again.
Tell us what would help you study at hello@studywithcardly.com. Every message is read.