Online EPUB converter

Our free online converter makes it easy to convert books to the epub format.

How to convert a epub file?

Step 1

Upload file

You can select the file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.

Step 2

Select «to aai»

Choose aai or any of the other 200+ supported formats you'd like to convert to.

Step 3

Download your aai file

Please wait for the conversion to complete, then click on the download button to obtain your converted file in the aai format.

Best epub converter tool

Convert aai Fast and easy

Simply drag and drop your aai files onto the webpage, and you'll be able to convert them to over 250 different file formats, all without having to register, provide an email address, or include a watermark.

Secure aai Conversion

As soon as you upload your aai files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.

No Software Installation Required

You don't have to go through the hassle of installing any software. We handle all aai conversions in the cloud, which means that none of your computer's resources will be used in the process.

Electronic Publication

Extension	.epub
Category	🔵 books
Programs	🔵 FBReader 🔵 Sumatra PDF 🔵 CoolReader 🔵 STDU Viewer 🔵 Calibre 🔵 Adobe Digital Editions 🔵 Sony reader 🔵 Comic Book Reader 🔵 QuarkXPress
Description	🔵 .epub (Electronic Publication) The .epub file format is a widely used and freely available eBook standard, designed by the International Digital Publishing Forum (IDPF). EPUB files are designed for reflowable content, meaning that the text display can be optimized for the particular display device used by the reader of the EPUB-formatted book. It allows for the embedding of fonts, images, and other media necessary for a full multimedia experience, and is compatible with many e-readers and reading apps. This format is popular for digital books because it's capable of adapting to different screen sizes and supports features like bookmarking, text highlighting, and note-taking.
Technical details	🔵 The `.epub` (electronic publication) format is a free, open eBook standard with these features: - Standardization: Maintained by the International Digital Publishing Forum (IDPF), current version EPUB 3.2. - Reflowable Content: Adjusts text to various screen sizes and resolutions, unlike fixed-layout PDFs. - HTML5 and CSS3 Support: Enables rich formatting and layout, including fixed-layout content. - Multimedia Integration: Supports audio, video, and interactive elements. - Global Language Support: Accommodates vertical writing and right-to-left reading for languages like Japanese, Arabic. - Accessibility: Strong support for accessibility features, including screen reader compatibility. - DRM Support: Can be DRM-protected, but DRM-free versions are also common. - Zip Compression: Comprises a compressed archive of HTML files, images, stylesheets, using ZIP compression. - Metadata: Includes bibliographic details like author, title, publisher, stored in XML. - Backward Compatibility: EPUB 3 is backward compatible with EPUB 2. - File Structure: Contains a manifest file, standard navigation file, content files (HTML/CSS), and optionally multimedia files. - Reading Systems Support: Supported by various e-readers, desktop, and mobile apps. - SVG Support: EPUB 3 supports Scalable Vector Graphics for high-quality images and interactive elements. EPUB is a preferred format in digital publishing for its adaptability, device compatibility, and support for complex layouts and interactivity. The EPUB format is favored in the digital publishing industry for its versatility, compatibility across a wide range of devices, and its ability to support complex layouts and interactive features. Its open standard nature ensures that it continues to evolve with advancing technology and industry needs.
Developer	🔵 nternational Digital Publishing Forum (IDPF)
MIME type	🔵 application/epub+zip