WordwiseBook – Free Online EPUB Translator (English, Chinese, Japanese, Thai and more)

WordwiseBook is a free web app that helps you add translations to your EPUB files in multiple languages including English, Chinese (Simplified), Japanese, German, Spanish, French, Thai, and more. It works seamlessly on both mobile and desktop, with instant EPUB download after processing.

Main Features:

  • Translate words and sentences in EPUB or pasted text
  • Supports multiple languages: English, Chinese, Japanese, German, Spanish, French, Thai, and more
  • Customize translation frequency using the Hint Level setting
  • Choose your preferred translation style: inline or tooltip
  • Download the translated version as an EPUB file

Try it with a sample EPUB – click here

Read EPUB with translation

Drag and drop your .epub file here or click to select a file

How to Use WordwiseBook

Upload EPUB or paste text
1. Upload EPUB or Paste Text

Drag and drop your .epub file here, click to select a file, or paste any text directly into the editor.

Translation Settings
2. Set Translation Options

Choose which type of translation to display (short definition, full definition) and set how often words appear (Hint Level).

Download results
3. Preview and Download

Preview your translated EPUB, then download it instantly.

Supports mobile and desktop • 100% free to use

WordwiseBook Extension

Chrome Extensions - Send highlighted text to WordwiseBook

Popular EPUB Samples