Comic & manga dark mode for night reading
One more chapter before sleep — and every page turn is a flash of white. Convert the file once and it opens dark in every reader, with the art left intact.
Drag to compare — a real soft-dark conversion by the engine below, not a mockup. Winsor McCay, Little Nemo in Slumberland (1908), public domain
Why reader apps don't solve this
Most comic and manga readers have a “dark mode” — for their menus. The page itself, the thing you're actually staring at, stays bright white because the app can't safely recolor someone else's document. OS-level invert tricks exist, but they flip the whole screen and turn every cover and color page into a negative.
Converting the file moves the dark theme into the document. Page backgrounds go near-black, linework and lettering turn light, and the result opens dark in any app — no per-device setup, no hacks to re-enable.
An honest note about the art
Comics are art first, so the honest guidance is: for full-color manga and painted covers, keep Keep images original ON (it is checked by default below). Color plates, covers and inserts then stay pixel-for-pixel original while the page background and text go dark around them.
For black-and-white linework — most manga interiors — Soft Dark alone looks great: the tone-mapping keeps screentones and hatching readable instead of negating them. The one preset to avoid for art is Hard Invert: it's a mathematically exact negative, wonderful for text documents, unflattering to a cover.
CBZ, CBR and other formats
This tool converts PDFs. A lot of comics circulate as CBZ or CBR — those are zip/rar archives of page images, not documents. Free converters can repack them into a PDF in a minute (several desktop and online tools do exactly this); drop the resulting PDF below, dark-mode it, and read the dark version anywhere.
Convert a volume now — it takes seconds per chapter and never uploads anything:
Reading on an e-reader or tablet
The converted file is a normal PDF, so the whole ecosystem works: Send to Kindle for a Paperwhite, copy to a Boox or reMarkable over USB, or open in any iPad/Android reader. It opens dark on every device — and you can keep both versions side by side, light for day, dark for night.
Frequently asked questions
Do manga and comic reader apps have a dark mode for the pages?
Almost none can recolor the pages themselves — app dark modes restyle the menus and borders, but the scanned page stays white. The reliable fix is to convert the file: the dark theme becomes part of the PDF and works in every reader.
What about CBZ or CBR files?
This tool converts PDFs. CBZ and CBR are just archives of page images, and free converters can repack them into a PDF in a minute — then drop that PDF here to dark-mode it. The converted file stays a normal PDF you can keep or split again later.
Will the artwork turn into a negative?
Not if you keep two defaults. Soft Dark tone-maps pages instead of negating them, and the Keep images original checkbox (on by default) leaves full-color art — covers, color inserts, painted pages — exactly as it was while the page around it goes dark. Avoid Hard Invert for art you care about: that one is an exact color negative.
Can I read the dark version on my e-reader or tablet?
Yes. The result is an ordinary PDF: send it to a Kindle with Send to Kindle, copy it to a Boox or reMarkable, or open it in any tablet reader. It opens dark everywhere, with nothing to configure per device.
Is it really free?
Yes — free, unlimited, and private. Conversion runs entirely in your browser: your files never leave your device, and there are no accounts, watermarks, or page limits.