EPUB Preview Tool
Upload an EPUB before full processing and preview extracted text, estimated word count, and file readiness before you generate a deck.
File preview panel
Upload an EPUB, TXT, or PDF and inspect extracted text before full processing.
How to interpret this tool
A lot of deck problems start before extraction logic. Sometimes the file itself is wrong: bad formatting, wrong title, low-value front matter, or text that is denser than expected.
This preview tool lets you inspect the file first so you can catch problems before you spend credits or generate a deck you did not want.
Usage notes
FAQ
Does this generate an Anki deck?
No. This tool only previews the uploaded file so you can decide whether it is worth sending into the full BookToAnki workflow.
What should I look for in the preview?
Check whether the extracted text is clean, whether the detected title looks right, and whether the sample seems readable enough to justify extraction.
Can I preview files other than EPUB?
Yes. The preview also accepts TXT and PDF so you can inspect the extracted text before the full upload flow.
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Estimate whether a book sample is a good fit, a stretch fit, or probably too hard for your current reading level.
Reading Friction Checker
Estimate how much a text may interrupt reading flow by combining sentence length, advanced-word density, and long-word share into one practical friction score.
If the preview looks clean, move to full extraction
Once the source text looks usable, continue to the main upload flow and generate a filtered deck instead of a blind full export.
Open Full Upload Flow