Free trial
No account is required for the first translated page on the web translator. Signing up adds 5 free pages plus 5 more to claim daily; no time-limited trial is described.
Learn moreSumi
Read raw manga, manhwa and webtoons in your own language, right on the page.
Beginner
What is Sumi?
Sumi translates raw manga, manhwa, manhua and webtoons in place: open a chapter in your browser, trigger the extension or iOS app, and the original text is erased and your language re-typeset into the artwork. Supports 134 languages and 30 tested publisher platforms, with vertical CJK typesetting and page-by-page translation.
Sumi is an AI manga translator that works inside the browser you already read in, rather than pulling chapters onto a separate server first. You open a chapter on the platform where you normally read (Shonen Jump+, MANGA Plus, WEBTOON, pixiv and similar), trigger Sumi, and the app re-letters the speech bubbles in place. The original text is erased from the artwork and your language is typeset back into it, with true vertical Japanese, Chinese and Korean placement for tall bubbles instead of horizontal text wedged in sideways. A page typically takes a few seconds to translate on Sumi's side, and pages appear one by one as they finish. Three entry points cover most readers. A browser extension for Chrome, Edge and Firefox handles desktop reading; a Safari extension and a dedicated iPhone and iPad app (also Mac) handle Apple devices, with the app offering its own browser and an Auto switch so each page turn translates itself. The app additionally opens whole chapters from PDF, ZIP, CBZ or EPUB files and keeps them in one library. A no-install option on the web site lets you drop a single page in and watch the result before creating an account. Sumi positions itself against apps that download an entire chapter before showing anything, and against readers who cannot reach pages behind a login. Because it reads what the browser already displays, signed-in chapters work. The claimed coverage is 30 official publisher platforms and 134 output languages, with 18,900+ pages translated in a recent week. Vertical-strip manhwa, colour manhua and self-published doujinshi are all called out as targets, though the site admits panels with text baked into background art are flagged rather than guessed at. Practically, Sumi suits readers following ongoing Japanese or Korean releases ahead of official translations, and anyone who wants a page readable without running it through a separate OCR and image-editing pipeline. An account unlocks 5 free pages plus 5 more to claim daily, which is enough to judge quality on your own series before committing.
How do you use Sumi?
1Pick your reading setup
Decide whether you read on a computer (Chrome, Edge or Firefox extension) or on Apple hardware (iPhone, iPad, Mac, or the Safari extension). The web translator needs nothing installed if you only want to test one page.
2Install the extension or app
Add Sumi to Chrome or Edge from the Chrome Web Store, install the Firefox add-on, or download the iOS app. Edge installs from the Chrome Web Store listing.
3Test one page before signing up
Drop a page you already own into the online translator, or paste a screenshot, and watch the original text disappear and your language get typeset back into the art. No account is needed for this first page.
4Open a chapter where you normally read it
Go to the chapter on its original platform, including series you are signed in to. In the iOS app, paste the link or pick a bookmark, then open the chapter inside the app browser.
5Trigger Sumi and read
Click the Sumi icon in the browser, or tap the ball in the app. Bubbles are re-lettered one by one as each page finishes translating.6Turn on Auto for longer sessions
In the iOS app, flip the Auto switch under the ball so every page you turn to translates itself. Whole-chapter files can be imported as PDF, ZIP, CBZ or EPUB into the app library.
Pros and cons
Pros
- Translates the page already open in your browser, so chapters behind a login still workAI
- Erases and redraws the original lettering instead of pasting white boxes over panelsAI
- True vertical typesetting for Japanese, Chinese and Korean, not rotated horizontal textAI
- Free to start with no account for the first page, then 5 free pages plus 5 dailyAI
- Native Apple app reads whole PDF, ZIP, CBZ and EPUB chapters, not just single screensAI
Cons
- Page translation depends on your connection; slow or high-latency networks make each page dragAI
- Browser extension support for Safari comes through the iOS app, so desktop Safari depends on Apple hardwareAI
- The 30 platform list is explicitly a snapshot, not a guarantee that any site keeps workingAI
- Panels with text drawn into the background art are flagged rather than translated, leaving gaps in dense manhuaAI
- Google Play build is labelled open testing, which is not a finished Android releaseAI
How much does Sumi cost?
Pricing
The Chrome extension is described as free, and readers can start without an account. Creating an account grants 5 free pages plus 5 more to claim every day. The homepage does not list paid tiers, prices or subscription rates, so the cost of heavy use beyond the free allowance is not stated.
Learn moreSupport
A public FAQ page covers common questions. The homepage lists no dedicated help centre, email address or live chat channel.
Learn moreIntegrations
Ships as a Chrome and Edge extension, a Firefox add-on, a Safari extension, and an iPhone, iPad and Mac app, working directly on third-party manga sites rather than through an API.
Learn moreFeatures
In-place page translation with original text erased and redrawn into the artwork, true vertical typesetting for Japanese, Chinese and Korean, page-by-page delivery, an Auto mode in the iOS app, whole-chapter imports from PDF, ZIP, CBZ and EPUB, and 134 output languages across 30 tested official publisher platforms.
Learn moreFrequently asked questions about Sumi
How much does Sumi cost?
The Chrome extension is described as free, and readers can start without an account. Creating an account grants 5 free pages plus 5 more to claim every day. The homepage does not list paid tiers, prices or subscription rates, so the cost of heavy use beyond the free allowance is not stated.Does Sumi offer a free trial?
No account is required for the first translated page on the web translator. Signing up adds 5 free pages plus 5 more to claim daily; no time-limited trial is described.How do you use Sumi?
The walkthrough on this page covers 6 steps: 1. Pick your reading setup 2. Install the extension or app 3. Test one page before signing up 4. Open a chapter where you normally read it 5. Trigger Sumi and read 6. Turn on Auto for longer sessions.What platforms does Sumi support?
Sumi is available on Web App, iOS, Android, MacOS and Browser extension.What does Sumi integrate with?
Ships as a Chrome and Edge extension, a Firefox add-on, a Safari extension, and an iPhone, iPad and Mac app, working directly on third-party manga sites rather than through an API.What are the limitations of Sumi?
Page translation depends on your connection; slow or high-latency networks make each page drag. Browser extension support for Safari comes through the iOS app, so desktop Safari depends on Apple hardware. The 30 platform list is explicitly a snapshot, not a guarantee that any site keeps working.
Status
StatusActive
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Added10/21/2026
Platforms
Web AppiOSAndroidMacOSBrowser extension
Pricing
FreeFreemium
