Check Your EPUB's Accessibility in Seconds
Drop an EPUB below and get a free automated report against the machine-checkable accessibility requirements Amazon KDP's accessibility questions and EU stores now read: accessibility metadata, declared language, image alt-text and EPUB 3 navigation. If something fails, a flat $29 fix repairs the machine-fixable issues and hands back the corrected file in seconds.
Drop your .epub here or click to choose — free check
EPUB up to 15MB · your file is deleted after processing
Fixing a whole catalogue?
Publishers with a backlist can remediate in bulk via the batch API — corrected files plus a per-title report for your records. See the accessibility service page.
Frequently asked questions
What exactly gets checked and fixed?
Four machine-checkable areas: schema.org accessibility metadata (access modes, features, hazards, summary), document language and page titles on the package and content files, images missing alt attributes (descriptive alt-text written by AI), and a proper EPUB 3 navigation document with table of contents and landmarks. The check is free; the automated fix is a flat $29 per book.
How is this different from ACE by DAISY?
ACE is an excellent free auditor — it reports problems and assumes you'll edit the EPUB yourself. This tool is a fixer: it applies the machine-fixable corrections and returns the corrected EPUB along with the report, no EPUB surgery required.
Is my file stored?
The EPUB is processed to produce your corrected file and report. Nothing is published or shared, and you keep full rights to the file.
Does passing mean full accessibility compliance?
No — automated checks cover part of accessibility. Judgment calls like whether alt-text genuinely describes an image still need a human. The report flags anything that needs a human look. It's a tool, not a certification.