← Flasher

EPUB Optimizer

Required for cover art and inline images · Converts to device-native BMP · Runs in your browser

Drop files

Drop EPUB files here or click to browse
One or more .epub files accepted

Options

Convert images to 2-bit BMP
Required — device cannot decode JPEG/PNG from EPUBs directly
Resize images to 480×800
Downscale oversized images to match display resolution
Strip all CSS
Remove stylesheets for clean, fast e-ink rendering
Remove embedded fonts
Strip web fonts — device uses its own optimized fonts
Remove JavaScript
Strip all scripts — not supported on device
Fix encoding issues
Replace smart quotes and special characters
Strip junk files
Remove .DS_Store, __MACOSX, and similar

Files

updated 21:04 Mar 31

← Back to Flasher · Saga Talu · GitHub