EPUB to FB2 Converter

Summary

Upload an EPUB ebook and download a clean FB2 file — all converted locally in your browser, never uploaded to any server.

How it works

1. Click the upload area or drag an EPUB file onto it.
2. JSZip unpacks the EPUB container and reads the OPF spine to find chapters in their correct reading order.
3. Each chapter's HTML is converted to FB2 paragraph elements.
4. Metadata such as title and author are written into the FB2 description block.
5. Click "Convert to FB2", then "Download FB2" to save the finished FictionBook file.

Use cases

• Converting EPUB ebooks to FB2 for reading on PocketBook or FBReader devices.
• Preparing ebooks for e-reader apps that support FB2 but not EPUB.
• Archiving EPUB content in the open FictionBook 2 XML format.
• Converting downloaded EPUB books for Russian-market e-readers that favor FB2.
• Batch-preparing personal ebook libraries for FB2-native reading software.
• Checking EPUB chapter structure by viewing the converted FB2 output.

Frequently Asked Questions