Work · alternatives · 2026
24 alternatives to Thinkio
Turn your PDFs and images into interactive online worksheets
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Thinkio launched in 2021; newer entries below may have overtaken it.
- 1
Draw on your pdf online
2020 · goodannotations.com · its alternatives →
- 2
Convert Excel templates into dynamic PDFs
2023 · pdfhippo.com · its alternatives →
- 3
PDFToQuiz▲129As a former student I created PDFToQuiz to solve I problem I had in college, how could I be sure I knew and understood all the material in the notes if I couldn't test myself. That's why I built PDFToQuiz, it helps students test thier knowledge on their own notes.
2024 · pdftoquiz.com · its alternatives →
- 4
Fun printable worksheets to boost kids’ creativity
2022 · littlebigartists.com · its alternatives →
- 5
Brainio▲190Brainio combines rich-text notes with visual mind maps. Organize your thoughts, link ideas, and collaborate in real time across desktop and web.
2020 · brainio.com · its alternatives →
- 6
Use search to analyze and visualize your Sheets data
2022 · workspace.google.com · its alternatives →
- 7
Sheeto▲2Create printable worksheets with AI and edit them visually
Jul 2026 · sheeto.work · its alternatives →
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- 9
Showeet▲104Impress your audience with creative & free PPT templates
2019 · showeet.com · its alternatives →
- 10
App that lets you write, draw, and annotate PDF files
2024 · its alternatives →
- 11
Infinite canvas for PDF docs, annotate PDF & images visually
2025 · apps.apple.com · its alternatives →
- 12
Transform your documents into interactive quizzes
2025 · pdf-to-quiz.com · its alternatives →
- 13
PDF Interact▲20Interact with your PDFs and uncover insights in seconds.
2025 · pdf-interact.live · its alternatives →
- 14PR
Hey HN, I built a PDF reader that can generate interactive visualizations right inside the document. The goal is to reduce the “intuition gap” when reading dense papers: select a concept, click Visualize, and it tries to produce a solid visual interactive app where you can rotate/zoom/step through (not just a text explanation). Upload any PDF, select text, click Visualize. Demo (no signup): https://zerodistract.com/try/pdf/67cdee74-810b-4f1b-af7d-010... Product link: https://zerodistract.com I’d love feedback, especially on what feels useful vs.…
Feb 2026 · zerodistract.com · its alternatives →
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- 16
Smarter Documents, Smoother Workflow
2024 · gopdf.pro · its alternatives →
- 17
- 18
Convert, edit, and optimize pdfs and images
2025 · pdfimagetools.app · its alternatives →
- 19
Effortless document generation with Google Sheets or Forms
2017 · chromewebstore.google.com · its alternatives →
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- 21
Turn your documents (PDF, DOCX, etc.) into fun quizzes
2024 · apps.apple.com · its alternatives →
- 22
View, edit, convert , merge, split, extract, compress PDF
2022 · pdfreaderpro.com · its alternatives →
- 23
Free online tools for PDF, Excel, images & more.
Nov 2025 · pdfalltools.com · its alternatives →
- 24
Back in college, I really enjoyed reading The Manga Guide to Calculus and other books in that series. Inspired by that, I recently added a feature to my app AISheets.study that lets you turn any material into a manga-styled study guide using AI. It also supports other styles like xkcd and traditional colored comic styles. The link I shared is an example I generated from Paul Graham’s essay on fundraising (https://paulgraham.com/fr.html) Still ironing out a few quirks, but I thought it’d be fun to share this with the community!!
2025 · aisheets.study · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →