Free tools
Free study tools
AI generators and small utilities. Free to try, and the utilities need no account.
AI study tools
AI flashcard maker
Upload a PDF, paste notes or type a topic. Get a 16-card deck to study.
AI quiz generator
A 10-question quiz with explanations, from any topic or your own notes.
AI mind map maker
See the structure of any topic at a glance: branches, sub-branches, done.
AI notes generator
Messy notes or a bare topic in. Clean, structured study notes out.
AI diagram generator
A labeled diagram for any concept, like a great textbook figure.
AI glossary generator
The key terms from your notes or a topic, defined in plain language.
From a PDF
For exam prep
Utilities: no AI, run in your browser
Pomodoro timer
Focus cycles with work and break intervals. Runs entirely in your browser.
Reading time calculator
Paste any text to count the words and see how long it takes to read.
Grade calculator
Weighted scores in, current grade and what you need on the final out.
Study schedule planner
Enter your exam date, daily hours and topics. See how many hours each topic gets.
CSV to flashcards
Paste a two-column CSV and practice it as flip cards.
About these free study tools
Free study tools from lezrn. The AI tools turn a PDF, your notes or a topic into flashcards, a quiz, a mind map, study notes, a labeled diagram or a glossary. They need a free lezrn account: new accounts get a 7 day free trial with 300 credits and no card, and each run costs 2 credits (a diagram costs 10).
The PDF tools are the same generators set up for one job: upload a PDF with selectable text and get flashcards, a quiz, notes or a mind map from what is in it. The study guide maker and practice test generator are set up for exam prep. The utilities are simpler: a Pomodoro timer, a reading time calculator, a grade calculator, a study schedule planner and a CSV to flashcards converter. They run in your browser with no AI and no account.
When you want more than one study set at a time, the full lezrn app turns your material into a course and schedules reviews so you remember it. Every account starts with a 7 day free trial.
Frequently asked questions
Are these study tools really free?
The utilities are free with no limit and no account. The AI tools need a free lezrn account. New accounts get a 7 day free trial with 300 credits and no card, and each run costs 2 credits (a diagram costs 10).
Do I need to sign up?
Not for the utilities, they work without an account. The AI tools ask you to make a free account before they generate, which also starts a 7 day free trial of the full lezrn app.
What files can I use with the AI tools?
PDF, DOCX, TXT and MD files, as long as the text is selectable. You can also paste text, paste a link to a web article or a YouTube video, or type a topic.
How are the free tools different from the lezrn app?
The tools make one study set at a time, and you use it on the page. The app turns your material into a whole course with lessons, quizzes, flashcards and mind maps, saves everything, and schedules reviews of each concept so it comes back right before you'd forget it.
Do the utilities send my data anywhere?
No. The timer, calculators, planner and CSV converter run entirely in your browser. Nothing you type is uploaded.