EPUB Converter
Free EPUB converter that runs entirely in your browser. No upload, no signup — convert to EPUB or from EPUB into 200+ supported formats in one click.
Drop any file here or click to browse
All file types supported
About EPUB
EPUB
EPUB (Electronic Publication) is a free, open e-book standard maintained by the W3C (formerly IDPF). EPUB files are ZIP-based archives containing XHTML content, CSS styling, images, and navigation elements, providing reflowable content that adapts to different screen sizes. EPUB is the most widely supported e-book format and is read by Apple Books, Google Play Books, Kobo, Calibre, and most e-readers except older Kindle devices.
- Developer
- W3C (formerly IDPF)
- Initial release
- 2007
- Compression
- Lossless
- Color depth
- up to 32-bit
- Transparency
- Yes
Best for
- Distributing e-books broadly
- Reflowable reading on e-readers
- Apple Books and Kobo publishing
- Open-standard e-book delivery
- Adaptive-screen digital books
Pros
- +Open W3C standard
- +Reflowable content adapts to screen size
- +ZIP-based with XHTML and CSS
- +Supported by most e-readers except older Kindle
Cons
- −Older Kindle devices don't support EPUB
- −DRM can restrict access
- −Rendering varies across readers
- −Complex layouts can be hard to reflow
How to convert with the EPUB converter
- 1
Choose the EPUB file you want to convert from your PC, Mac or mobile device, or simply drag and drop it onto the page.
- 2
When your file is uploaded, the output format is preset to EPUB. You can add more files to batch-convert them together.
- 3
Click the gear icon and tweak codec, quality, resolution or other options if you need them, then apply to all files if you want.
- 4
Click the Convert button. When conversion completes, download the result to your computer or save it back to Google Drive / Dropbox.
Frequently Asked Questions
What is an EPUB file?▼
EPUB is the open standard for e-books — reflowable text that adapts to any screen size, supported by Apple Books, Kobo, Google Play Books, and most e-readers except older Kindle.
Why convert EPUB to PDF?▼
PDF keeps a fixed layout that prints cleanly and preserves the page-like appearance — ideal for sharing with non-e-reader users or when you want exact pagination.
Why convert EPUB to MOBI or AZW3?▼
Older Kindle models read MOBI or AZW3 natively but not EPUB. Converting makes the e-book readable on legacy Kindles without conversion on the device.
Can I edit an EPUB?▼
EPUBs are essentially zipped HTML files, so they can be edited — unzipping and tweaking the XHTML is common. Converting to DOCX gives a familiar editing surface if you prefer a word processor.
Are my e-books uploaded when converting?▼
Never. ChameLeo converts locally in your browser — purchased and personal e-books stay on your device.
Supported Conversions
Specific converters
100% Free
No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.
No Signup Required
Start converting immediately without creating an account or sharing email address.
Private & Secure
Your files never leave your device. All processing is completed locally for maximum privacy.
Batch Conversion
Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.
Runs in Browser
Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.
200+ Formats
Supports a wide variety of formats including images, documents, audio, video, and more.
EPUB Converter Quality Rating
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