Manga Translator for Manhwa & Webtoon — Sumi by Sumi

Sumi translates manga, manhwa, manhua, and webtoons in place — on the page you are already reading.

Open the Sumi popup on any page with comic images, pick your target language, and translate the visible images — or right-click a single image and choose "Translate this image". Sumi detects each speech bubble, caption, and sound effect separately, then redraws the translation back inside the artwork, so the page still reads like a comic. Click again to compare with the original.

Why it looks right
- Per-bubble detection, not one blurry pass over the whole page — fewer missed lines.
- The translation is drawn into the bubble and fits its shape, including vertical CJK text. It is not a text box pasted over the art.
- Click any translated image to flip back to the original.

Works on sites that block image downloads
Some manga sites refuse plain image requests. Sumi fetches the exact image bytes the page is already showing you, using a temporary, host-scoped header rule. Nothing is blocked, redirected, or collected.

Language support
Translate Japanese, Korean and Chinese comics into any of the 24 target languages available in the popup.

Auto-translate the sites you choose
- Turn auto-translate on per site from the popup; new pages translate as you read.
- Firefox asks for its optional all-sites access only when you enable this, and Sumi acts only on the sites you turned on.

Optional floating button
Off by default. Switch it on from the popup and a slim dock along the edge of the page (a draggable button on narrower windows and touch devices) puts Sumi one tap away, no popup required.

Also on iPhone, iPad, Mac and Safari
The same translation engine ships as a native app and a Safari extension, so your reading carries across devices.

What Sumi never does
- It never hosts, crawls, indexes, or links to manga.
- It only translates images on pages you open yourself, from chapters you have the right to read.
- Your browsing history is never collected or uploaded. Sumi keeps a local list of the sites you switch it on for, and sends one site's domain only if you press "Report this site".