How to read a .MOBI file online
Three steps, a few seconds, no app.
Choose your .MOBI file
Drag your .MOBI file onto the box above, or click Choose file.
Supported
Your .MOBI file is opened: its chapters, cover and table of contents are read, and scripts are dropped for safety.
Read your way
Turn pages with the arrow keys, change text size, switch to sepia or night mode, or scroll instead.
What is a .MOBI file?
The open standard for reflowable e-books.
A MOBI file is a Mobipocket e-book format that Amazon based early Kindle on, now retired. Open it with Calibre (Windows/macOS/Linux) or FBReader for DRM-free files; use the Kindle app for books bought from Amazon. The main task today is converting MOBI to EPUB in Calibre, since Amazon dropped MOBI from Send to Kindle in 2022.
Programs that open .MOBI files
| Full name | Mobipocket eBook |
|---|---|
| Developer | Mobipocket SA (acquired by Amazon, 2005); format retired by Amazon |
| First released | 2000 (Mobipocket); retired from Send to Kindle by Amazon in 2022 |
| Category | Documents |
| MIME type | application/x-mobipocket-ebook |
| Signature | 42 4F 4F 4B 4D 4F 42 49 "BOOKMOBI" - Palm DB type+creator ID |
Related viewers
Other free viewers for related formats.
Is my .MOBI file uploaded anywhere?
No. Your .MOBI file is unpacked and displayed for you. Your reading position is remembered for next time.
Can I read Kindle books bought from Amazon?
Only if they're DRM-free. Most purchased Kindle books are copy-protected, and we don't remove DRM. The reader tells you when a file is protected.
Why does my .MOBI file look different from the publisher's layout?
For comfortable reading we apply our own typography and drop the file's scripts and most of its styling. Text, headings, images, tables and links are kept.
Can I read comics and manga?
Yes. CBZ and CBT open directly, CBR and CB7 through our archive engine. Switch between single and double pages, fit to width or height, and turn on right-to-left reading for manga.
What about PDF books?
Use our PDF Viewer. It has thumbnails, zoom and full-text search.
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