How do I open a Sony LRF file without a Sony Reader?

Upload your .lrf file here and it opens in any browser. Sony discontinued its Reader line and the LRF format with it, so LRF libraries are otherwise stranded on hardware that no longer syncs.

LRF is Sony's BroadBand eBook format, used by Sony Reader devices before the company moved to EPUB. Books bought from the old Sony store are typically LRF.

Can ReadLoudly read my LRF books aloud?

Yes. ReadLoudly extracts the text from the LRF container and narrates it with AI voices, so an old Sony library becomes listenable rather than just readable.

Will my LRF bookmarks from the Sony Reader carry over?

No — Sony stored bookmarks on the device, not in the file. ReadLoudly creates fresh bookmarks and remembers your listening position from the moment you first open the book here.

Is the LRF reader free to use?

Yes. Reading and listening to LRF files is free, with no account required to start and no watermark on anything. Paid plans — Core at $5/month, Plus at $10/month, Pro at $19/month — raise the upload size limit, unlock all 1200+ AI voices, add MP3 downloads and offline listening, and remove ads.

Does ReadLoudly support LRF as well as other formats?

Yes — LRF is fully supported on this page, and it is one of 24 formats ReadLoudly reads aloud: documents (PDF, DOCX, ODT, RTF), ebooks (EPUB, MOBI, AZW, FB2, CHM, LRF, LIT, PDB, RB), text and web files (TXT, HTML), comics (CBR, CBZ), and images (via OCR) (JPG, PNG, GIF, BMP, WEBP, TIFF, SVG). Upload an LRF file here and it opens straight away; any other format on that list has its own reader page.

Can I open LRF files on my phone or tablet?

Yes. This reader runs in the mobile browser on iOS and Android — nothing to install — so you can open an LRF file straight from your phone's Files app, an email attachment or a cloud drive. Playback continues in the background, and your position syncs to any other device you sign in on.

What happens to my LRF file after I upload it?

It is parsed to extract its text, then removed from the processing servers. ReadLoudly does not train models on your files, does not share them with third parties, and does not make them visible to anyone else. Signed-in users can choose to keep an LRF file in their own private library; a guest upload is discarded when the session ends.

What exactly is an LRF file?

LRF is Sony's BroadBand eBook format, used by Sony Reader devices before EPUB took over. ReadLoudly opens it directly in the browser, so you do not need the original software that created it.

What if my file is not an LRF?

Every format gets its own reader page rather than being funnelled into one generic uploader, so nothing loses its format-specific handling. Nearest neighbours to LRF among ReadLoudly's ebooks: LIT, PDB, RB, EPUB. The Tools page lists all of them.

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Listen to your LRF files like audiobooks, chat with content, track progress, highlight key points, and save bookmarks — all in one place.

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LRF files files up to 50MB each

Supported formats: LRF files

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How to listen to your LRF files.

Listening to your LRF files hands-free is simple with ReadLoudly.

Upload Your File

Upload the LRF files you want to listen to.

Choose Your Page

Open your file and jump to the page you want to hear.

Press Play & Listen

Hit play and let ReadLoudly read it aloud—hands-free.

What is LRF Format?

LRF (Librie Reader Format) is Sony's proprietary eBook format, used by older Sony Reader devices. While Sony discontinued their e-reader line, many users still have LRF files in their personal libraries.

ReadLoudly opens LRF files directly in your browser — no Sony Reader device needed. Upload your .lrf file and listen with AI text-to-speech voices.