How to read a .LRF file online
Three steps, a few seconds, no app.
Choose your .LRF file
Drag your .LRF file onto the box above, or click Choose file.
Supported
Your .LRF 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 .LRF file?
The open standard for reflowable e-books.
An LRF file is a Sony BBeB (BroadBand eBook), the e-book format used by the old Sony Reader (PRS) hardware. The easiest way to read or convert one today is the free app Calibre: add the LRF to your library, then either open it in the built-in viewer or convert it to EPUB for a modern device. The format was discontinued in 2010 when Sony switched to EPUB.
Programs that open .LRF files
| Full name | Sony BBeB eBook |
|---|---|
| Developer | Sony (with Canon) |
| First released | 2004 (Sony LIBRIé / BBeB format); used on the Sony Reader line from 2006 |
| Category | Documents |
| MIME type | application/x-sony-bbeb |
| Signature | 4C 00 52 00 46 00 00 00 "L.R.F..." - the UTF-16LE string "LRF" (L 00 R 00 F 00) followed by a version word at offset 0 |
Related viewers
Other free viewers for related formats.
Is my .LRF file uploaded anywhere?
No. Your .LRF 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 .LRF 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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