Optimize comics and manga
for any e-reader.

Drop your CBZ, CBR, EPUB or KEPUB files in and get a perfectly sized file out, tailored for your e-reader. Free to use. Native app for macOS and Linux.

↓ Download for macOS

Also available for Linux (GTK4/Adwaita)

ComicsFit app showing 5 CBZ files being optimized for a Kobo Libra Color, with 90% file size reduction
Features

One job. Done well.

Compress, resize and optimize comic archives for your e-reader. Pick your device, pick your output format, hit Optimize.

Formats

Flexible input. Exact output.

ComicsFit reads the most common comic archive formats and converts to whatever your device needs.

Input
.cbz .cbr .epub .kepub
→
Output
.kepub .epub .cbz .azw3 .pdf
Pricing

Free to use.
Unlock batch for €9.

The full conversion engine is free. Unlock the queue to process your entire collection in one go.

Free
€0
Free forever
  • ✓ Full compression engine
  • ✓ All device presets
  • ✓ All input formats
  • ✓ All output formats
  • ✓ Process one file at a time
  • ✕ Batch queue (multiple files)
Download Free
License Key
€9
One-time payment · yours forever
  • ✓ Everything in Free
  • ✓ Queue multiple files at once
  • ✓ Batch process entire collections
  • ✓ Support indie development
Buy License Key for €9

Download ComicsFit

Free to use. 20 MB. No account needed.

↓ Download for macOS ↓ Download for Linux

macOS (Apple Silicon) · Linux GTK4/Adwaita

⚠️ macOS security warning: ComicsFit is not yet notarized by Apple. On first launch, right-click the app → Open, then click Open in the dialog. If macOS blocks it, go to System Settings → Privacy & Security and click "Open Anyway". You only need to do this once.