Skip to main content
Ebook Conversion

Convert MOBI to LRF Online — Free

Fast, free MOBI to LRF converter. No registration required.

or import from

2M+ Files Converted

Trusted by thousands of users

Secure Transfer

HTTPS encrypted uploads

Privacy First

Files auto-deleted after processing

No Registration

Start converting instantly

Works Everywhere

Any browser, any device

How to Convert

1

Upload your .mobi file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .lrf file when it's ready.

What is MOBI?

MOBI is an ebook format used by Amazon Kindle devices. While Amazon now prefers EPUB, MOBI remains compatible with older Kindle models.

Format Details

Full Name
Mobipocket eBook
Extension
.mobi

Key Features

  • Kindle compatible
  • DRM support
  • Ebook standard
  • Amazon format

What is LRF?

LRF is Sony's proprietary eBook format developed for Sony Reader devices. Discontinued in favor of EPUB, LRF files require conversion to remain readable on modern devices.

Format Details

Full Name
Sony BroadBand eBook
Extension
.lrf

Key Features

  • Sony Reader native
  • BBeB format
  • Fixed layout support
  • Discontinued format

MOBI vs LRF

FeatureMOBILRF
Full NameMobipocket eBookSony BroadBand eBook
Extension.mobi.lrf
Best ForKindle compatibleSony Reader native

Frequently Asked Questions

Yes. Our converter preserves chapter structure, table of contents, and navigation. Formatting, images, and internal links are maintained when both formats support them.
MOBI and AZW3 formats work natively on Kindle devices. EPUB works on Kobo, Nook, and most other e-readers. PDF works universally but isn't reflowable.
We can only convert DRM-free eBooks. If your file has DRM restrictions, you'll need to remove them before conversion. We don't provide DRM removal tools.
Yes. eBook conversion is free with up to 5 conversions per day. No registration or watermarks. Pro users get unlimited conversions and batch processing.
Yes. Upload from any device with a browser — iPhone, Android, tablet, or desktop. No app installation required.

Related Conversions