EPUB to KEPUB
A Kobo will open a plain EPUB, so why bother with KEPUB? Because KEPUB is the format Kobo treats as its own: reading stats work, and comics get routed through the faster comic renderer instead of the sluggish generic EPUB path. For image-heavy books that renderer difference is the whole reading experience, snappy page turns versus waiting on every swipe.
One honest scoping note before you upload: this converter is built for comics and manga, EPUBs where each page is an image. It does not just relabel your file, it re-cuts every page for the exact Kobo you own, whether that is a Clara HD at 1072 x 1448, a Libra 2 at 1264 x 1680, or an Elipsa at 1404 x 1872. If your EPUB is a text-first novel, a dedicated text tool like kepubify is the right fit; for anything drawn, you are in the right place.
EPUB to KEPUB
Free, no install, native Kobo output
How it works
Drop your comic EPUB in
Pages are extracted in your browser in reading order. Up to 20 files at once, 1GB each, up to 1000 pages per file; CBZ, CBR and PDF work here too.
Pick your exact Kobo
Clara, Libra, Sage, Elipsa: each has a different screen, and pages are re-cut for the one you choose so nothing is wasted on margins or lost to downscaling.
Preview on real converted pages
The live preview shows pages exactly as the Kobo will draw them, so spread splitting, borders and contrast can be judged and adjusted before converting.
Download and copy to the Kobo
Transfer the .kepub.epub over USB and it appears as a native Kobo book, stats and fast renderer included. Outputs stay for 24 hours, then auto-delete.
KEPUB is EPUB with Kobo superpowers
A KEPUB is structurally an EPUB with Kobo-specific markup layered in. That markup is what tells the device to track stats and to use its optimized comic renderer. Without it the Kobo falls back to the generic EPUB reader: functional, but slower on comics and blind to your reading habits.
Why the exact model matters for comics
Text reflows to any screen; drawn pages do not. A page cut for the Elipsa at 1404 x 1872 carries far more pixels than a Clara HD can show, and one cut for the Clara looks soft blown up on an Elipsa. Choosing your model means every panel is rendered at exactly the resolution the screen can display.
Frequently asked questions
What do I actually gain over reading the plain EPUB on my Kobo?
Two things: your reading stats (time per session, pages turned, progress tracking) actually record, and comics render through the faster KEPUB comic renderer, which makes page turns noticeably quicker on image-heavy books.
Should I use this or kepubify?
Depends on the book. kepubify is excellent for text-first novels: it converts the markup and keeps reflowable text. This converter is for comics and manga: it re-renders page images for your Kobo screen, which kepubify does not do.
Which Kobo models are supported?
Current and recent models each get their own profile, from the Clara HD (1072 x 1448) through the Libra 2 (1264 x 1680) up to the Elipsa (1404 x 1872), so pages match the panel exactly instead of a lowest common denominator.
Can I feed it manga that reads right to left?
Yes. Manga mode stamps right-to-left reading into the KEPUB, so the Kobo pages backward-to-Western eyes, forward-to-manga eyes, the way the book was drawn.
Conversion runs on Kindle Comic Converter (KCC), which despite the name is the comic community standard for Kobo too, open source and hosted here with a live preview, nothing to install.