Guides
What Is WebP and Why Do Websites Use It?
WebP is an image format designed to reduce file size while keeping visual quality strong enough for modern websites. It is widely used because smaller images can help pages load faster.
Published March 3, 2026 · Updated March 16, 2026
Why WebP Is Popular
WebP is popular because it often produces smaller files than PNG or JPG for the same image. Google has published WebP guidance noting that lossless WebP images can be about 26% smaller than PNG files, and lossy WebP images can be about 25% to 34% smaller than comparable JPEG images at similar visual quality.
That kind of reduction matters on websites because smaller images usually mean less bandwidth, faster downloads, and lighter pages overall. WebP also supports transparency, which makes it a flexible option for many web graphics, product images, and content-heavy pages.
Why People Still Convert WebP
Even though WebP is common on the web, some desktop tools, marketplaces, older workflows, and upload systems still expect PNG or JPG instead.
That is why WebP conversion pages remain useful. They help people move from a web-optimized format into a format that is easier to edit, upload, or reuse elsewhere.
When To Switch Formats
Convert WebP to PNG when you need an easy editing format or transparency-safe output. Convert WebP to JPG when compatibility matters more than preserving transparency.
If your main goal is website performance, keeping images in WebP can still be a strong choice for many publishing workflows.