Free AI fill in the blank generator
Paste notes, upload a file, or drop a link. Each card is one sentence from your material with the key term blanked out. Type the missing word and get graded on the spot. No signup, no card.
Free to use. Free to keep.
The tool needs no account. A free account saves every result, adds the full study kit, and syncs to your phone.
This free fill in the blank generator turns your material into sentences with the key word left out. Paste notes, upload a PDF, a slide deck, or a photo, or paste a YouTube or web link. Each card is one sentence from the source with its key term blanked out. The page opens in Write mode, so you type the missing word and get graded right away. Switch to multiple choice, a match game, or print it. No sign up and no card.
Give it your source
Paste your notes, a transcript, or an article, paste a YouTube link, upload a PDF, a doc, slides or an ebook, upload a photo of the page, or paste a link to a public web page. No account needed.
Run the tool
The AI reads your source on our server and writes the result. A long file takes a little longer.
Study or save
Use it right away, or save it to a free library and get the full study kit from the same source.
Why use this fill in the blank generator
Type the missing word
Write mode grades what you type, forgives small typos, and lets you overrule it.
Wrong choices that fit
In Learn mode the wrong options fit the blank but make the sentence false. You have to know it.
From your own sentences
Every blank comes from your material and is checked against a quote from it.
Print or take to Anki
Print a worksheet with answers, or export CSV, an Anki deck (.apkg), Markdown, or JSON.
Who it's for
Students
Learn the exact terms a test asks for. Typing the word sticks better than reading it.
Teachers
Turn a reading into a fill in the blank worksheet and print it with the answers.
Language learners
Blank out key words in a text you are learning and fill them back in.
Questions
How do I make fill in the blank questions?
Paste your text, upload a file, or paste a link, then press Make blanks. The AI takes up to 12 key sentences from your material and hides the key term in each one as a blank.
How do I answer them?
The result opens in Write mode. Type the missing word and the page grades it. Small typos are forgiven, and you can mark an answer right yourself if the grader was too strict.
Can I get choices instead of typing?
Yes. Switch to Learn. It shows the right word next to wrong ones that also fit the blank but make the sentence false. Missed cards come back until you get them.
Can I print it as a worksheet?
Yes. Print or save as PDF to get the sentences with their answers. You can also export CSV, Markdown, JSON, a file Anki or Quizlet can import, or an Anki deck (.apkg).
Will the sentences match my notes?
Yes. Each card carries a short quote from your source, and the server checks it. A card it cannot trace back to your material is dropped.
Is it free?
Yes, no account and no card. There is a small daily limit on free runs. Sign up free to save the cards and review them on a schedule.
Study it on your phone too
Synapsi runs on the web, iPhone, iPad, Mac and Android. One free account, the same notes everywhere.
Related study tools
Got a PDF instead? Pull the text out first, then run any study tool on it.
Switching from another study app? See how Synapsi compares, feature by feature.