EPUB Analyzer

Analyze EPUB files to extract metadata, chapter structure, word count, images, fonts and detailed insights.

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About This Tool

The EPUB Analyzer is a comprehensive tool that allows you to upload any EPUB file and get detailed analysis of its contents. It extracts metadata like title, author, publisher and language, analyzes the chapter structure and table of contents, counts words and characters, identifies embedded images and fonts, validates the EPUB structure, and provides insights about the digital book's composition. The tool works entirely in your browser for privacy and supports EPUB 2.0 and 3.0 formats.

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How to Use

Click the upload area or drag & drop your EPUB file
Select analysis options (metadata, structure, content, images, fonts)
Click 'Analyze EPUB' to process the file
View detailed results including metadata, chapter list, word count, and file structure
Download the analysis report as JSON if needed

Frequently Asked Questions

Find Quick Answers

What EPUB versions does this tool support?

The tool supports both EPUB 2.0 and EPUB 3.0 formats. It can parse the container.xml, content.opf, and toc.ncx/toc.xhtml files to extract comprehensive information.

Is my EPUB file uploaded to a server?

No, for basic analysis the tool works entirely in your browser using JavaScript. Your EPUB file never leaves your computer. Only if you use advanced analysis features requiring server processing will the file be sent to our secure servers.

What information can I extract from an EPUB file?

You can extract: metadata (title, author, publisher, language), chapter structure and table of contents, word and character counts, embedded images and their details, embedded fonts, file structure validation, and overall EPUB composition insights.

Is there a file size limit?

There's no strict file size limit for browser-based analysis. However, very large EPUB files (over 100MB) may take longer to process depending on your device's memory and processing power.

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