Convert EPUB to MOBI online in seconds — free, with no sign-up. MOBI is lossless and ideal for older Kindle files; converted to EPUB for modern readers. Your files are encrypted and deleted automatically after 24 hours.
EPUB
Electronic Publication — The open ebook standard with reflowable text, supported by most readers.
MOBI
Mobipocket — Amazon's legacy ebook format, discontinued in 2022 in favor of EPUB.
How to convert EPUB to MOBI
- 1Upload your EPUB file
Click “Choose a file” or drag and drop your EPUB file onto the page — no sign-up or email needed.
- 2Convert to MOBI
MOBI is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your MOBI file
Your MOBI file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
EPUB vs MOBI
| EPUB | MOBI | |
|---|---|---|
| Full name | Electronic Publication | Mobipocket |
| Type | Ebook | Ebook |
| Compression | Lossless | Lossless |
| Best for | publishing to Apple Books, Kobo, Google Play and most e-readers | older Kindle files; converted to EPUB for modern readers |
Frequently asked questions
Does converting EPUB to MOBI lose quality?
Converting EPUB to MOBI keeps your content intact. We use high-quality defaults so your MOBI file looks as close to the original as the format allows.
What's the difference between EPUB and MOBI?
Electronic Publication (EPUB) is lossless and best for publishing to Apple Books, Kobo, Google Play and most e-readers. Mobipocket (MOBI) is lossless and best for older Kindle files; converted to EPUB for modern readers. Convert EPUB to MOBI when you need a ebook for older Kindle files.
Is the EPUB to MOBI converter free?
Yes — converting EPUB to MOBI is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my EPUB files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert EPUB to MOBI on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert EPUB to MOBI?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert EPUB files to?
Besides MOBI, you can convert EPUB to AZW3, DOCX, FB2, MARKDOWN, MD, PDB and more — see the full list of EPUB conversions below.
Other conversions
Last updated July 2026