Best Free Online EPUB Tools

Managing EPUB ebook files doesn't require expensive software. Here are the best free online EPUB tools available in 2026.

1. Merge EPUB Files

Combine multiple EPUB ebooks into a single file. Perfect for book series or splitting errors. Try the EPUB merger →

2. Split EPUB by Chapters

Extract individual chapters from an EPUB. Useful for reading assignments or sharing specific sections. Try the EPUB splitter →

3. Compress EPUB

Reduce EPUB file size by compressing images and optimizing the ZIP structure. Save storage on your e-reader. Try the EPUB compressor →

4. EPUB to PDF Converter

Convert any EPUB ebook to PDF format. Clean output with no watermarks. Try the converter →

5. EPUB Metadata Editor

Change the title, author, language, publisher, and description embedded in your EPUB file. Try the editor →

6. EPUB Validator

Check your EPUB for structural errors, missing files, and compliance with EPUB 2/3 standards. Try the validator →