Scan Translator is a reading tool rather than a generic translator. Instead of asking you to copy text out of a page, it hooks into the browser and works directly on comic images: it locates text regions (speech balloons, captions, sound effects), recognises the source language with AI OCR, translates it, then removes or covers the original lettering and redraws the translation in place. Because it handles vertical Japanese columns and Korean webtoon strips as well as horizontal Latin text, it covers the most common raw comic formats readers run into.
Two workflows are offered. Live mode translates pages as you browse supported reading sites, with a screenshot option for pages that block or obfuscate image access. File mode lets you upload saved pages, an entire folder, or a ZIP archive, and it supports unusually tall vertical images such as webtoon strips around 20,000 pixels high, which you can scroll side by side with the original. There is also support for the Firefox Add-ons store, so the same account and credit balance work outside Chromium browsers.
Access is credit-based. Every new account gets 30 free credits (one credit translates one image), re-translating the same image to the same language is not charged twice, and purchased credits do not expire. An Unlimited plan is aimed at regular readers with a monthly fast-translation allowance followed by standard speed. The extension is published by an independent developer, ships 12 interface languages, and holds a 4.8 average rating from more than 400 Chrome Web Store reviews.
