EpubCCPut an EPUB on your Kindle
You don't need to convert an EPUB to MOBI or AZW3 for a Kindle any more: Amazon's Send to Kindle accepts EPUB files and converts them for the device. Check the EPUB here first: EpubCC validates it, repairs the problems Send to Kindle rejects, and gives you the file back free.
Free, no account needed. You see the EPUBCheck report before you download.
Updated:
Private files. Never used for training. Deleted automatically, or right away when you press Delete now.
Three steps
- Upload the EPUB above. EpubCC runs EPUBCheck and repairs what it safely can.
- Download the checked EPUB.
- Send it with Send to Kindle: Amazon's web page, its app for your computer or phone, or your Kindle's email address. The book appears in your Kindle library.
Why not convert to MOBI or AZW3?
Amazon stopped accepting MOBI files through Send to Kindle, and it converts every EPUB it receives into its own format for your device. Converting to AZW3 yourself only matters when you copy books over USB, and the result is the same book.
When Amazon still says no
Send to Kindle can't take DRM-protected EPUBs, and very large files hit Amazon's size limit. For anything else the repair report shows what was fixed and what still needs a hand edit.
Sources
FAQ
Do I need to convert EPUB to MOBI for Kindle?
No. Send to Kindle accepts EPUB, and Amazon has stopped accepting MOBI there. Send the EPUB.
Can I copy an EPUB to a Kindle over USB?
A Kindle can't open EPUB files copied over USB. Use Send to Kindle, which converts the file for you.
What does the repair change?
Only mechanical problems with a single safe fix: the mimetype file, a missing container.xml, missing language, title, identifier or modified date, manifest entries for files that don't exist, wrong media types, text that isn't UTF-8, HTML entities such as that XML doesn't know, links to anchors that don't exist, file:// links, and a table of contents with duplicate play order. Text, images and styles are left exactly as they were.
What happens to my EPUB?
The file you upload is deleted as soon as the check and repair finish. The repaired EPUB is deleted 1 hour after your first download, or 24 hours after it's ready. Files are never published, and never used for benchmarks or training.