image/*
image/webp
File extensions: .webp
Modern raster format — smaller than JPEG and PNG with transparency.
What is image/webp?
image/webp is Google's modern replacement for JPEG and PNG. It offers ~30% smaller files at similar quality for photos, supports transparency and animation, and is now available in every major browser.
Typical usage
Any image on the modern web — photos, graphics, animated stickers.
Common gotchas
For maximum browser support, serve WebP alongside a JPEG/PNG fallback via <picture> element and Accept negotiation.
HTTP header example
Response header
Content-Type: image/webpReference
developers.google.com/speed/webp
Frequently asked questions
What is the image/webp MIME type?
image/webp is Google's modern replacement for JPEG and PNG. It offers ~30% smaller files at similar quality for photos, supports transparency and animation, and is now available in every major browser.
What file extension does image/webp use?
Files served as image/webp typically use the extension .webp. The most common is .webp.
How do I set the Content-Type for image/webp?
Send the HTTP response header Content-Type: image/webp. Any image on the modern web — photos, graphics, animated stickers.
Is image/webp an official MIME type?
Yes. image/webp is officially registered with IANA (developers.google.com/speed/webp), so standards-conformant clients recognize it.
What are common mistakes with image/webp?
For maximum browser support, serve WebP alongside a JPEG/PNG fallback via <picture> element and Accept negotiation.