HTML to EPUB Converter
Convert HyperText Markup Language (HTML) to Electronic Publication (EPUB) online for free. Runs 100% in your browser. Files never leave your device. No signup, no watermarks, no limits.
Drag & drop files here
or
Choose filesProcessed on your device. Nothing is uploaded
How to HTML to EPUB convert files
- 01Add your files
Click “Choose Files” or drag and drop them onto the page. Batch conversion is supported.
- 02Adjust settings
Pick quality, size or other options. Sensible defaults are pre-selected.
- 03Convert & download
Hit Convert and download your files. Everything runs locally. Nothing is uploaded.
What is a HTML (HyperText Markup Language) file?
HTML is the standard markup language of the web. Converting documents to HTML makes them viewable in any browser without special software.
- Developed by
- W3C / WHATWG
- Initial release
- 1993
What is a EPUB (Electronic Publication) file?
EPUB is the open e-book standard used by every major e-reader except Kindle. It is a ZIP of XHTML, CSS and metadata, which makes it friendly to in-browser conversion.
- Developed by
- IDPF / W3C
- Initial release
- 2007
Frequently asked questions
How do I convert HTML to EPUB?
Click “Choose Files” or drag your HTML file onto the page, optionally adjust the settings, then hit Convert. Your EPUB file downloads straight from your browser. Nothing is uploaded anywhere.
Is this HTML to EPUB converter free?
Yes, completely free with no hidden limits, watermarks or signup. Because all processing happens on your own device, there are no server costs to pass on to you.
Are my files uploaded to a server?
No. The conversion engine runs entirely in your web browser using WebAssembly. Your files never leave your device. You can even disconnect from the internet after the page loads and keep converting.
Is there a file size limit?
We impose no fixed limit. The practical ceiling is your device's free memory, since processing happens locally. Most conversions work comfortably with files up to a few hundred megabytes, and image or document conversions handle much more.
Does it work on my phone?
Yes. The converter runs in any modern browser on Windows, macOS, Linux, Android and iOS. No app installation is required.