"Offline Translator" lets you translate PDFs, images, EPUBs, text files, audio, and camera input offline on your smartphone for free and without limits, supports 60 languages, and even handles vertical Japanese text

Offline Translator, a free Android app, can translate text, images, PDFs, EPUBs, audio, and camera input entirely offline after language packs are downloaded.

The app supports 60 languages and includes OCR features such as Japanese vertical text recognition.

It is built around Firefox translation models and is available via F-Droid and GitHub.

The app is useful for privacy-friendly, on-device translation in travel, accessibility, and low-connectivity situations.