What Is WebP? Benefits, Quality, and Website Uses

Published on 2026-01-26•Updated on 2026-09-01

WebP is an image format designed for efficient image delivery on the web. It supports both lossy and lossless compression, along with transparency and animation.

## Why Was WebP Created?

WebP was created to provide efficient compression compared with older formats such as JPG and PNG while maintaining strong visual quality.

## WebP File Size

WebP images can often be smaller than equivalent JPG or PNG images. Smaller files require less data to download and can help reduce page weight.

If your existing images are JPG, use our [JPG to WebP converter](/jpg-to-webp) or read [How to Convert JPG to WebP for Free](/blog/jpg-to-webp-guide).

## WebP vs JPG

JPG remains highly compatible and is still useful for photographs, but WebP can often achieve a smaller file size at a similar visual quality.

## WebP vs PNG

WebP can support transparency, making it useful for some graphics that would traditionally be saved as PNG. The best option depends on the image and the software or platforms involved.

For a complete comparison, read [Best Image Formats Explained](/blog/best-image-formats-explained).

## WebP and Website Performance

Efficient image formats can reduce the amount of data that visitors need to download. Image dimensions, compression settings, lazy loading, and responsive delivery also affect performance.

For image SEO advice, read [How to Optimize Images for SEO](/blog/image-seo-guide).

## WebP vs AVIF

AVIF is another modern image format that can provide strong compression in some situations. WebP remains practical when you want a balance of compression, compatibility, and simple tooling.

Read [What Is AVIF? The Next Step in Image Compression](/blog/what-is-avif).

## Animated WebP

WebP also supports animation, similar to GIF but with significantly better compression. An animated WebP file can be a fraction of the size of the same animation saved as a GIF, while supporting more colors and smoother transitions. This makes WebP a practical replacement for GIFs on websites where load time matters.

## Converting Existing Images to WebP

If you have an existing library of JPG or PNG images, converting them to WebP is usually straightforward. Most images convert with no visible quality difference at a moderate-to-high quality setting, though it's worth spot-checking a few converted files before replacing your entire library.

Keep your original files after converting. If a particular image doesn't compress well as WebP, having the source file lets you try a different quality setting or fall back to the original format for that specific image.

## Final Thoughts

WebP is a strong general-purpose format for modern websites. If you want to optimize multiple JPG images, batch conversion can make the process faster.

See [How to Batch Convert Images](/blog/batch-convert-images).