Book Quality Checker
One report that combines epubcheck conformance, accessibility, and the Qualebook production checklist — so you know exactly what to fix before you publish.
Free toolDrag and drop your .epub file here
or
Browse filesYour file is processed securely and deleted immediately after analysis.
Conformance
Validates your EPUB against epubcheck — the canonical EPUB validator — surfacing every fatal, error and warning.
Accessibility
Audits against the DAISY Ace accessibility checks and the EPUB Accessibility 1.1 metadata the European Accessibility Act requires.
Qualebook checklist
Cross-references both reports against the Qualebook production checklist, flagging what passes, what needs attention, and what to review by hand.
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What the Book Quality Checker does
Publishing-ready is not one check — it is three. This free quality audit runs epubcheck for technical conformance and Ace by DAISY for accessibility, then cross-references both against the Qualebook production checklist, an 88-rule framework used across the publishing industry. One upload, one report, a clear verdict on whether a title is ready to distribute.
Instead of reading three separate tool outputs, you get a single list of what passes, what needs attention, and what a person should review by hand — grouped the way a production team actually works through a file.
It is free and private, one book at a time. It is the same battery of checks publica.la runs across an entire catalog, distilled into one self-serve report.
When to use it
- A final pre-distribution gate that covers conformance and accessibility at once.
- Onboarding files from a new supplier or converting a backlist.
- Deciding whether a title is ready or needs another production pass.
- Aligning a team around one shared production standard.
Do this for your whole catalog in Origami
Metadata, EPUB and accessibility checks, descriptions and more — all in one place, without the one-off limit. Origami is where these tools live for your entire list.
Start in OrigamiBuilt on epubcheck (© W3C, BSD-3-Clause) and Ace by DAISY (© the DAISY Consortium, MIT). The Qualebook checklist is a collective work of the SNE digital commission’s Normes & standards group, based on the Opquast checklist, licensed CC BY-SA 4.0.