WordwiseBook

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

WordwiseBook is a free web app that helps you add Thai, Japanese, or Simplified Chinese translations to your EPUB files. Works on both mobile and desktop, with instant download as EPUB or PDF.

Main Features:

  • Translate words and sentences in EPUB files
  • Supports multiple languages: Thai, Japanese, Simplified Chinese
  • Adjust translation frequency with Hint Level
  • Download translated files as EPUB or PDF

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 file
1. Upload Your EPUB File

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

Translation Settings
2. Set Hint Level and Translation Type

Choose how many translated words you want to see and the format (short definition, full definition, or example sentence).

Download results
3. Preview and Download

Once processed, preview the result and download the translated EPUB or PDF instantly.

Supports mobile and desktop • 100% free to use

Popular EPUB Samples