How to Translate Korean Manhwa & Webtoons to English

Korean webtoons and manhwa are some of the most-read comics in the world — and plenty of them are either not officially in English yet, or the official translation is chapters behind where you want to be. If you can see the panels but can't read the Korean, here's how to fix that.

The methods are the same three as for reading raw manga, but the format is different enough to matter — so this guide is webtoon-specific.

Why webtoons are harder to translate than manga

A page of manga is a tidy rectangle. A webtoon is a long vertical strip, in full colour, with dialogue and sound effects scattered down tall panels and often drawn into the art itself. That trips up the cheaper tools two ways:

• they translate one screen-height at a time and lose the thread between panels, and
• they drop a flat box over the bubble, which looks especially wrong on a clean full-colour webtoon.

What you want is a translator that reads the whole strip, erases the original lettering, and re-types your language back into the art — vertical text and sound effects included.

Vertical text re-set into the bubble — colour art left alone.

Method 1 — A browser extension (on the reader site)

If you read on a webtoon site in your browser, a browser extension is the least-friction option: open the episode, click, and the Korean is replaced in place as you scroll. Best for keeping up with a series on the site you already read it on.

Open the episode → click → keep scrolling.

Method 2 — Upload the panels (online translator)

Saved a few panels, or reading from images you own? Drop them into an online translator — nothing to install, works on any device, and you choose the language you want the result in. Best for one-off panels and chapters.

Method 3 — A reader app (for following a series)

If you're following a manhwa volume to volume, a reader with a continuous vertical scroll is the right home. Import the chapter once and Sumi translates the whole strip end to end, keeps the full-colour art intact, and lets you scroll it the way it was drawn — with a one-tap fix when a line reads wrong.

Manhwa, manhua, or manga — the source doesn't matter

Good comic translators read the lettering whatever the source language — Korean manhwa, Chinese manhua, or Japanese manga — and render it in the language you choose. The same tool that handles your Korean webtoons handles the Japanese series on your shelf too.

A note on where to read

Plenty of webtoons are officially free and legal: WEBTOON and Tapas publish huge catalogues in English, and many more in the original Korean — that's the right place to start. Use a translator on series you have a right to read (official free episodes, your own purchases), not to route around a paywall or an official English release.

FAQ

What's the best free way to translate a webtoon? For an episode open in your browser, a browser extension is the fastest free route; for saved panels, an online uploader. Sumi gives you 5 free pages on sign-up, 5 more to claim each day after that, and a page a day without an account — so you can judge the quality on your own webtoons first.

Does it work on the long vertical scroll? Yes — that's the whole point of a webtoon-aware reader. It translates the full strip and keeps the continuous vertical layout instead of chopping it into pages.

Does it handle Korean and Chinese? Yes. Manhwa (Korean), manhua (Chinese), and manga (Japanese) all work — Sumi detects and translates the lettering whatever the source.

Will the colour and art survive? Yes. The original text is erased and your language re-typeset in its place, so the full-colour panel still looks drawn, not pasted over.

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Reading a series that isn't in English yet? Start with the webtoon translator, or translate in place with the Chrome extension — both free to try on your own episodes.