LRF to MOBI converter
Turn LRF into MOBI
Send us the LRF you already have and take away a MOBI. Handled on our servers, deleted the moment the job ends.
or drag and drop files here
LRF files • Max 50MB per file • Up to 10 files
Both formats, briefly
LRFIN
LRF is Sony's own ebook format, also known as BBeB or BroadBand eBook, used across the Sony Reader line before the company switched to EPUB. It handles reflowed text, images, embedded fonts and simple styling, which covered what those devices were sold to do. You will mostly meet LRF in libraries bought from the old Sony store or synced onto a PRS-series reader. Convert it when you want those titles on hardware that never spoke Sony's format.
MOBIOUT
MOBI is the format Amazon built its early Kindle library on, after buying it from Mobipocket. Books in it keep bookmarks, highlights and your place in the text, and Kindle hardware from that era reads them directly. Newer Kindles moved on to AZW3, so MOBI now matters mainly when an older device or a reading app of the same vintage is still in service. If you inherited a shelf of .mobi files, converting them to EPUB or AZW3 keeps those books readable on current hardware.
Three steps, start to finish
Add your LRF
Drag it onto the page, or pull it in from your computer, Google Drive or Dropbox.
MOBI is preselected
This page is already set to write MOBI. Switch the target if you change your mind.
Take the MOBI
Grab the result the moment the job clears. Your upload is wiped straight afterwards.