EPUB to WEBP Converter

Render EPUB pages as WEBP images — free online tool

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Modern Image Format

WEBP delivers excellent quality at smaller file sizes than JPG or PNG — perfect for web-optimized EPUB page images.

Speedy Output

Cloud rendering means your EPUB to WEBP conversion processes quickly without taxing your own device resources.

Files Removed Promptly

Your EPUB is deleted immediately after processing. WEBP image outputs are automatically purged within 24 hours.

How to convert EPUB to WEBP

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose webp or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your webp file right afterwards

About formats

EPUB (Electronic Publication) is an open ebook standard originally developed by the International Digital Publishing Forum (IDPF) and now maintained by the W3C following the organizations' merger in 2017. The first version carrying the EPUB name was approved in October 2007 as a successor to the Open eBook Publication Structure (OEBPS). An EPUB file is essentially a ZIP archive containing XHTML or HTML5 content documents, CSS stylesheets, images, fonts, and metadata organized according to the Open Packaging Format and Open Container Format specifications. The current major version, EPUB 3, supports reflowable and fixed-layout content, embedded multimedia, JavaScript interactivity, MathML equations, and rich accessibility features including semantic markup and media overlays for synchronized text and audio. A defining advantage is universal device support — unlike proprietary formats, EPUB works natively on virtually every non-Kindle e-reader, tablet, and reading application, from Apple Books and Google Play Books to Kobo and dozens of third-party apps. The reflowable text model is another core strength, automatically adapting pagination, font size, and margins to match any screen dimension and user preference. EPUB's open specification and active W3C stewardship ensure long-term preservation and vendor independence, making it the de facto standard for digital publishing across libraries, academic institutions, and commercial retailers worldwide.
Initial release: October 2007
WebP is an image format developed by Google, announced on September 30, 2010, designed to provide superior compression for web images in both lossy and lossless modes. The lossy mode is derived from the VP8 video codec's intra-frame coding (the same technology used in WebM video), applying block prediction, transform coding, and adaptive quantization to photographic content. The lossless mode uses a distinct algorithm combining predictive coding, color space transforms, backward reference to repeated pixel patterns, and entropy coding. WebP also supports alpha transparency in both modes — lossy WebP with transparency is unique among common web formats, offering semi-transparent images at much smaller sizes than PNG. The format supports animated sequences as well, providing a modern alternative to GIF with full-color support and dramatically better compression. One advantage is substantial file size reduction — lossy WebP produces images 25-35% smaller than JPEG at equivalent visual quality, and lossless WebP is typically 26% smaller than PNG, directly improving web page loading speed and reducing bandwidth costs. Universal browser support provides another key strength: Chrome, Firefox, Safari, Edge, and all mobile browsers now render WebP natively, achieving the broad adoption threshold needed for practical deployment. Google's core web infrastructure (Search, YouTube thumbnails, Gmail) uses WebP extensively, and the format is supported by major CDN platforms, CMS systems, and image processing services. WebP has established itself as the primary modern alternative to JPEG and PNG for web content.
Developer: Google
Initial release: September 30, 2010

Frequently Asked Questions

Why convert EPUB to WEBP?

WEBP offers superior compression over JPG and PNG — ebook page images load faster on websites while maintaining excellent visual clarity.

What opens WEBP files?

All modern browsers — Chrome, Firefox, Safari, Edge. Image editors like Photoshop, GIMP, and Paint.NET also support WEBP natively.

Is WEBP better than JPG for ebook pages?

For web use, yes — WEBP files are noticeably smaller at equivalent quality, meaning faster page loads when displaying ebook visuals online.

Does each page become a separate WEBP image?

Yes — each EPUB page is rendered as its own WEBP file, maintaining the original reading sequence of the ebook.

Is this conversion free to use?

Absolutely — EPUB to WEBP is free on Convertio. Upgraded plans unlock larger file allowances and faster queue priority.

Can I upload multiple ebooks?

Yes, batch uploads are supported. Convert multiple EPUB files to WEBP images in one go — efficient and straightforward.

EPUB to WEBP Quality Rating

4.3 (15 votes)
You need to convert and download at least 1 file to provide feedback!