Sumi

AI manga translator that instantly translates manga pages in your browser.

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About Sumi

Sumi is an advanced AI-powered manga translator crafted specifically to enhance the reading experience for manga, manhwa, and doujinshi enthusiasts worldwide. By leveraging cutting-edge artificial intelligence, Sumi translates each page in real-time directly within your browser or app, eliminating the need to upload entire chapters or wait for lengthy processing. Its sophisticated technology erases original text and seamlessly re-typesets translations directly onto the artwork, preserving the authentic look and feel, including true vertical typesetting for Japanese, Chinese, and Korean (CJK) characters.

Available as extensions for popular browsers such as Chrome, Edge, Firefox, and Safari, and as a standalone app on iPhone, iPad, and Mac, Sumi supports 134 languages and integrates with over 30 official manga platforms. This means users can enjoy quick page-by-page translation even on sites requiring login credentials. The freemium model offers daily free translated pages, making manga accessible effortlessly across diverse linguistic backgrounds. Sumi’s ability to work without interrupting your usual reading environment defines it as a uniquely immersive tool in the AI translation space.

Use Cases

A non-Japanese-speaking reader wants to enjoy newly released Shōnen Jump manga on official Japanese websites without waiting for fan translations.
Manhwa fans prefer reading on Korean portals behind paywalls or login walls and require instant translations without uploading content elsewhere.
Doujinshi collectors wish to read niche Japanese works in multiple languages while preserving the original art styles and speech bubble placements.
A bilingual reader wants to switch languages seamlessly on the fly while browsing manga in a browser extension without installing separate apps.
Mobile manga readers using iPad or iPhone want an integrated app solution with offline capabilities for instant translations on the go.
Educators and translators studying manga vocabulary use Sumi’s glossary and vertical typesetting features to understand contextual language nuances in original manga pages.

Key Features

Instant page-by-page translation in-browser without uploads
Seamless re-typesetting replacing original text in the artwork
Supports 134 languages including vertical CJK typesetting
Available as Chrome, Edge, Firefox, Safari extensions and iOS/macOS apps
Works directly on over 30 official manga platforms with no waiting

Pricing

Sumi follows a freemium pricing model. Users can access a free version that grants daily free pages to translate, ideal for casual readers or those trying the service. For more frequent or power users, paid subscription options unlock increased daily page quotas, priority translation speeds, and access to advanced features such as batch translation and offline modes on iOS/macOS apps. Pricing tiers are transparently displayed on the official website, offering scalable plans depending on usage needs, ranging from basic free access to professional-level subscriptions for heavy manga consumption or translation workflows.

Pros & Cons

Pros

+ Instant page-by-page translation without needing to upload entire chapters, making for swift reading with minimal delays.
+ Seamless re-typesetting directly onto artwork preserves original style and layout, including true vertical CJK text orientation.
+ Supports an extensive 134 languages, accommodating a global user base across many popular manga and manhwa platforms.
+ Available as browser extensions and standalone apps for major platforms, allowing flexible use on desktop and mobile devices.
+ Works directly on over 30 official manga sites, including those behind logins, ensuring convenience and breadth of supported content.

Cons

- Free version limits daily translated pages, which may restrict heavy users unless subscribing to paid plans.
- Translation quality can vary depending on text complexity and artwork style, sometimes requiring manual verification.
- Currently limited to certain browsers and Apple devices; lacks native apps for Android phone users, which may exclude some audiences.
- Real-time translation speed can be affected by internet connection quality, potentially causing delays for users with slower networks.

Frequently Asked Questions

Which platforms and browsers are compatible with Sumi?

Sumi works as extensions for Chrome, Edge, Firefox, and Safari browsers, and offers standalone apps for iPhone, iPad, and Mac. This broad compatibility supports reading across your preferred devices and platforms.

Do I need to upload manga chapters to translate?

No upload is required. Sumi translates the manga page you have open in your browser or app instantly, maintaining a seamless reading experience without uploading entire chapters to external servers.

How many languages does Sumi support?

Sumi supports translations into 134 languages, including special support for vertical typesetting languages like Japanese, Chinese, and Korean, preserving the authentic reading style.

Is there a free version available, and what are its limits?

Yes, Sumi offers a free version that provides daily free pages for translation. This is ideal for casual users who want to translate a limited number of pages per day, with optional paid plans available for higher usage.

Can Sumi translate manga pages behind login or paywalls?

Yes, because Sumi works directly on the pages loaded in your browser while you are signed in, it can translate manga pages that require login, providing access even on restricted platforms.

How accurate is Sumi’s translation and typesetting?

Sumi erases original text and re-typesets the translation directly into the artwork, preserving original speech bubble placement and vertical CJK text orientation. While AI translation quality is high, reading experience may vary based on content complexity.

Does Sumi require an account to start using?

No account is needed to translate your first page instantly. Creating an account unlocks 5 additional free pages and daily bonuses, enhancing your translation allowance and experience.