Is my EPUB file uploaded to a server?

No. The entire conversion runs inside your browser. Your file never leaves your device.

Which EPUB versions are supported?

The tool supports EPUB 2 and EPUB 3 files. Both versions use the same ZIP + OPF + HTML structure that this tool parses.

Are images and formatting preserved?

No. Only the readable text content is extracted. Images, tables, and HTML styling are stripped, leaving clean plain text.

Are all chapters included?

Yes. The tool reads the OPF spine to find every chapter in reading order, so the output matches the book's sequence from start to finish.

What if the EPUB has no OPF or an unusual structure?

If the OPF cannot be parsed, the tool falls back to extracting text from every HTML/XHTML file found in the archive.

Is there a file size limit?

There is no server-side limit. Very large EPUBs with many chapters may take a few seconds to process depending on your device.

EPUB to TXT Converter

Drop an EPUB file and instantly extract all readable text — processed locally in your browser, nothing uploaded.

Upload EPUB File

Drop .epub here or click to browse Processed entirely in your browser

Add chapter separators Collapse multiple blank lines

Text Preview

Upload an EPUB file and click Convert

Extracted text will appear here

Done!

Summary

This tool reads an EPUB file entirely in your browser using JSZip to unzip the container, then parses the OPF manifest to determine reading order and extracts readable text from every HTML content document. The merged result can be previewed and downloaded as a plain .txt file. Because processing happens client-side, your ebook never leaves your device.

How it works

Click "Choose File" or drag an .epub file onto the drop zone.
JSZip unzips the EPUB container directly in your browser.
The OPF package file is parsed to find the spine reading order.
Text is stripped from each HTML chapter file in order.
A preview of the extracted text appears below the controls.
Click "Download .txt" to save the full plain-text file.

Use cases

Extract ebook text for accessibility tools or screen readers.
Feed ebook content into AI summarization or analysis pipelines.
Archive an ebook in a format that is readable without any special software.
Search for specific passages across an entire book with Ctrl+F.
Convert study material or technical books into pasteable plain text.
Strip DRM-free ebook formatting before importing into note-taking apps.

Frequently Asked Questions

Last updated: 2026-10-05 · Reviewed by Nham Vu