HTMLZ to LRF converter
Turn HTMLZ into LRF
Send us the HTMLZ you already have and take away a LRF. Handled on our servers, deleted the moment the job ends.
or drag and drop files here
HTMLZ files • Max 50MB per file • Up to 10 files
Both formats, briefly
HTMLZIN
HTMLZ is a book packed as ordinary web files: the HTML holding the text, a stylesheet, and the images, zipped together into one archive. Nothing sits behind a proprietary container, so this is the format to pick when you want to edit a book by hand, feed it to your own publishing script, or inspect how the markup came out of an earlier conversion. Calibre reads and writes it, which makes it a comfortable stopping point between two other formats. Choose HTMLZ when the file is a working copy rather than the version someone will read.
LRFOUT
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.
Three steps, start to finish
Add your HTMLZ
Drag it onto the page, or pull it in from your computer, Google Drive or Dropbox.
LRF is preselected
This page is already set to write LRF. Switch the target if you change your mind.
Take the LRF
Grab the result the moment the job clears. Your upload is wiped straight afterwards.