EPUB to PNG Converter

Summary

Drop an EPUB file to extract its cover image and download it as PNG — runs entirely in your browser.

How it works

1. Select or drag an EPUB file onto the drop zone.
2. The tool unzips the EPUB archive client-side using JSZip.
3. It parses the OPF manifest (content.opf) to find the cover image entry.
4. The cover image is decoded and drawn onto an HTML5 Canvas element.
5. Click "Download PNG" to save the extracted cover to your device.

Use cases

• Preview the cover art of an ebook before sharing it.
• Extract a cover image to use as a thumbnail or social media graphic.
• Quickly check which cover artwork is embedded in an EPUB file.
• Convert EPUB cover art to PNG without installing desktop software.
• Generate a cover preview for a self-published ebook.
• Build a reading list with visual cover thumbnails.

Frequently Asked Questions