KEPUB FORMAT
KEPUB Converters
Convert EPUB ebooks to Kobo's optimized KEPUB format for faster page rendering and better reading statistics.
About KEPUB
KEPUB (Kobo Enhanced Publication) is Kobo's proprietary ebook format, designed specifically for their e-readers. KEPUB files use the double extension .kepub.epub and are internally similar to standard EPUB, but include sentence-level <span> markup that enables Kobo-specific optimizations.
Learn more: KEPUB on MobileRead Wiki
The key benefits of KEPUB over standard EPUB on Kobo devices include: 40-80x faster page rendering, accurate reading time estimates, better pagination (no mid-sentence page breaks), and improved reading statistics. KEPUB files can only be fully utilized on Kobo e-readers—other devices should use standard EPUB.
Quick Facts
- Extension
- .kepub.epub
- Developed By
- Kobo Inc.
- Format Type
- Enhanced EPUB
- Compression
- ZIP container
- Rendering
- 40-80x faster
- Reading Stats
- Accurate time estimates
- Pagination
- No mid-sentence breaks
- Platform Support
- Kobo e-readers only
Convert to KEPUB (1 tools)
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Answers at a Glance
Quick answers to common questions.
- Are my files secure?
- How long do you keep my files?
- What metadata do you keep?
- What happens after I drop a file?
- Why are conversions so fast?
- How do you measure performance?
- What are the exact limits for each plan?
- Can I process files in bulk?
- Why did my file fail to convert?
- Do you use my files to train AI?