MOBI to EPUB Converter
Convert Amazon MOBI ebooks to the open EPUB format for any reader.
Complete the security check to begin
Free your Kindle library
MOBI is tied to Amazon's older ecosystem. If you switched to a Kobo, an Android tablet, or Apple Books, converting MOBI to EPUB lets you keep reading your DRM-free books anywhere.
- Universal - EPUB opens on nearly every modern reader
- Reflowable text - adjust fonts and spacing freely
- Private - processed in memory, never stored on a server
About Converting MOBI to EPUB
MOBI is a legacy Amazon Kindle e-book format. Although Amazon now prefers AZW3/KFX, MOBI remains widely compatible with older Kindle devices and apps. When you need to move away from MOBI, the usual reason is simple: deprecated by amazon.
Converting your MOBI e-book to EPUB solves that. EPUB is the open, reflowable e-book standard used by most readers except Kindle. Text adapts to any screen size, and the format supports images, styling and navigation. In practice you gain reflowable text for any screen and open standard. PrivConvert runs the whole MOBI-to-EPUB conversion in server memory and deletes your file the instant the EPUB is ready — nothing is stored, logged or reused.
When this conversion helps
- You need reflowable text for any screen
- You need open standard
- You need supported by most e-readers and apps
- Escaping a proprietary MOBI file for the open EPUB standard
- Sharing a MOBI e-book with someone whose software expects EPUB
Tips for best results
- Files up to 250 MB are supported, and you can batch-convert several MOBI files at once; each is processed privately and deleted immediately.
How to Convert MOBI to EPUB Online
Here is how a MOBI → EPUB conversion works on PrivConvert, from start to finish. What you gain with EPUB: reflowable text for any screen.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from MOBI to EPUB starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
A more private way to convert MOBI files
Plenty of sites convert MOBI files. Very few promise never to keep them — PrivConvert does, and backs it up with how the service is built.
Runs in any modern browser on Windows, macOS, Linux, Android and iOS — no install, plugin or desktop software needed.
Each job runs in an isolated in-memory sandbox, so most conversions finish in seconds instead of waiting in a queue.
We never keep a copy. Once your EPUB is delivered, both the original and the result are gone — there is nothing left to leak or misuse.
Every conversion runs in its own locked-down process with no network access, so files can never leak or interfere with one another.
MOBI vs EPUB - Format Comparison
| Feature | MOBI | EPUB |
|---|---|---|
| File extension | .mobi | .epub |
| Full name | Mobipocket eBook | Electronic Publication |
| Encoding | Binary | Binary |
| Editable | No | No |
| Open standard | — | Yes |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Why people pick PrivConvert for EPUB
Thousands of people trust PrivConvert with their files because privacy here is structural — enforced by how the service runs, not just promised.