Thinkio
Turn your PDFs and images into interactive online worksheets
Thinkio launched on October 2, 2021 with 103 votes, #414 of 2,933 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.
What it does
Thinkio turns your PDFs and images into interactive worksheets you can share with a link. People can draw and write on the worksheets and submit them back for you to view. We built Thinkio to help teachers, but people have found all sorts of uses for it.
Thinkio is a free and simple tool to help teachers share interactive material with students in an online environment.
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