View LRF File files directly in your browser. No installation, no account. 100% private — files never leave your device.
Drop your file to view it instantly
or click to browse from your device
Desktop: up to 50MB · Mobile: up to 20MB
Works entirely in your browser — no software installation required
100% private — files never leave your device or touch any server
Completely free with no account or registration required
Mobile-friendly — works on phones, tablets, and desktops
Accurately renders LRF files entirely in your browser
Instant file loading — no server upload or processing delay
Sony BroadBand eBook format
Readable on dedicated e-reader devices and apps
Supports adjustable text size and font preferences
Efficient for long-form text distribution
Formatting can vary between different reader apps
DRM-protected ebooks may limit portability
Complex layouts may not reflow correctly on all devices
E-reader device reading (Kindle, Kobo, etc.)
Digital book publishing and distribution
Personal reading library management
Academic and professional reference materials
Test rendering on Kindle, Kobo, and Apple Books for cross-reader compatibility
Use 72 DPI for cover images to keep file size small and fast to download
Validate EPUB files with EPUBcheck before uploading to publishing platforms
Include a fallback font specification in case the device font is unavailable
Drag & drop your .lrf file, or click to browse
Your file opens instantly — no upload or server
Save the original file anytime with one click
Yes, completely free. View any LRF file with no limits, no sign-up, and no software installation required.
Your LRF file is processed entirely in your browser using client-side JavaScript. It never leaves your device, is never uploaded to any server, and is cleared when you close the tab.
Yes. After viewing, you can convert your LRF file to another format using our free LRF converter linked below.
Free, instant, and 100% private. Your files are processed locally in your browser.