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Kindle Previewer

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Amazon's free official tool that converts EPUB, DOCX, and HTML to Kindle format and previews how a book renders across Kindle devices.

Best for: Every KDP author, as a final conversion and QA step to preview Kindle rendering before uploading

Free
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Verified July 2026
14/20Formatting & LayoutVisit Website

Details

Tool Type
Conversion Tool
Formats Supported
Epub, Docx, Html, Kpf
Platform
Windows, Mac
conversion-toolfree· 12 categoriesamazon· 11 categorieskdp· 8 categorieskindle· 3 categoriesepub· 2 categoriespreview· 2 categoriesquality-assurance

Limitations

  • Kindle-only: It previews and produces Kindle files; it does nothing for EPUB stores like Apple Books or Kobo
  • Not an editor: You can't fix problems inside Previewer — spot the issue here, then correct it in your formatting tool and re-import
  • Windows and Mac only: No Linux build

Kindle Previewer is Amazon's free, official desktop app for converting a finished manuscript into Kindle format and checking exactly how it will look on real Kindle devices. It runs the same conversion engine Amazon uses on its side, so it's the closest thing to a guaranteed preview of your published book. When Amazon retired the standalone KindleGen tool in 2020, its conversion functionality was folded into Kindle Previewer, making this the canonical way to produce and inspect Kindle files.

Why Authors Use It

  • Best for: Every KDP author, as the final QA step before hitting publish — catch layout bugs while they're still fixable
  • Accurate device preview: Simulates phones, tablets, and e-ink Kindles so you can verify page breaks, table of contents, images, and font behavior
  • Real conversion engine: Converts EPUB, DOCX, and HTML into Kindle's KPF/KFX format using Amazon's own pipeline, not a third-party approximation
  • Free and official: Maintained directly by Amazon with regular updates; no cost and no upsell
  • Complements your formatter: Works alongside authoring tools like Kindle Create or Vellum — format there, then verify here

Limitations

  • Kindle-only: It previews and produces Kindle files; it does nothing for EPUB stores like Apple Books or Kobo
  • Not an editor: You can't fix problems inside Previewer — spot the issue here, then correct it in your formatting tool and re-import
  • Windows and Mac only: No Linux build

Alternatives

  • Calibre (free) — for cross-store EPUB conversion and previewing outside the Kindle ecosystem
  • Kindle Create (free) — Amazon's companion authoring tool for building the book file itself before previewing
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