What is WordwiseBook?
WordwiseBook is a free, browser-based tool that adds intelligent word translations to EPUB files and pasted text, helping you read in foreign languages with instant comprehension support.
📚 About WordwiseBook
Transform Your Reading Experience with Smart Translation
WordwiseBook is a powerful, free web application that seamlessly adds multilingual translations to your EPUB files and text. Built for language learners, avid readers, and anyone who wants to break down language barriers while reading.
🎯 Our Mission
To make language learning accessible to everyone by providing instant, context-aware translations that enhance reading comprehension without disrupting the flow of great literature.
✨ Why Choose WordwiseBook?
14 Languages Supported
English, Chinese, Japanese, Korean, Thai, Spanish, French, German, Portuguese, Russian, Arabic, Hindi, Vietnamese, and Ukrainian translations at your fingertips.
100% Privacy First
All processing happens locally in your browser. Your files never leave your device, ensuring complete privacy and security.
Lightning Fast
Instant translation processing with real-time preview. No waiting, no delays—just smooth, efficient translation.
Completely Free
No subscriptions, no hidden fees, no limitations. Full access to all features forever, absolutely free.
Works Everywhere
Fully responsive design works seamlessly on desktop, tablet, and mobile devices. Read and translate anywhere.
Customizable Display
Choose between ruby text (above words) or inline display. Adjust hint levels and definition detail to match your learning style.
❓ Frequently Asked Questions
What file size is supported?
We recommend files up to 20 MB for optimal performance. Larger files will work but may take longer to process depending on your device.
Which languages are supported?
Currently supporting 14 languages: English, Chinese, Japanese, Korean, Thai, Spanish, French, German, Portuguese, Russian, Arabic, Hindi, Vietnamese, and Ukrainian. More languages coming soon!
Can I download the translated file?
Absolutely! Download your enhanced file instantly in multiple formats: EPUB (with embedded translations), PDF (for universal reading), or XTC (optimized for e-ink devices). All formats work seamlessly on any compatible reader.
Is my data safe?
100% safe. All processing happens entirely in your browser using client-side JavaScript. No files are uploaded to any server, and no data is collected or stored.
Why aren't some words translated?
Words may not appear if they're not in our dictionary or don't match your selected hint level. Try adjusting the hint level (1-5) to show more or fewer translations.
Can I customize translations?
You can choose between short and full definitions, toggle phonetic pronunciations, adjust hint levels, and switch between display styles (ruby or inline).
Is WordwiseBook really free?
Yes! WordwiseBook is completely free with no limitations, no ads, and no premium features hidden behind paywalls. Our mission is to make language learning accessible to everyone.
Can I share translated files?
Yes, feel free to share your translated EPUB files! They're fully compatible with all standard EPUB readers and will display translations on any device.
👨💻 About the Creator
Supasan Suklim
React & Node.js Engineer | Creator of WordwiseBook
Passionate about building tools that make learning and productivity accessible to everyone. WordwiseBook was born from a simple idea: language barriers shouldn't stop anyone from enjoying great literature.
💡 The Story Behind WordwiseBook
As a language learner myself, I found existing tools either too expensive, too complicated, or privacy-invasive. WordwiseBook was built to solve these problems—offering a free, privacy-first, easy-to-use solution that runs entirely in your browser.
🚀 Other Projects
- ImgBeam - Fast, privacy-focused image hosting
- Chrome Extensions - Productivity tools for developers and readers
- Open Source - Contributing to the developer community
📬 Get in Touch
📜 License: Free to use for personal and educational purposes. Support the project by sharing it with others!