WebP (.webp) is a image format. Modern image format with great compression and broad browser support. It uses both compression, supports transparency and animation.

What is WebP used for?

WebP is commonly used for: web images, thumbnails, mixed photo + graphics.

How do I optimize WebP files?

Run "npx optimo image.webp" in your terminal. Optimo applies format-specific compression to reduce WebP file size while preserving quality.

What is WebP?

WebP (.webp). Modern image format with great compression and broad browser support.

Last updated: 2026-03-18

WebP (WebP, .webp) is a image format that uses both compression. Modern image format with great compression and broad browser support. It supports transparency. It supports animation. Common uses include web images, thumbnails, mixed photo + graphics.

Quick facts

Extension

.webp

Type

Image format

Compression

both

Transparency

Yes

Animation

Yes

MIME type

image/webp

Common uses

web images
thumbnails
mixed photo + graphics

Delivery notes

Often a strong default for web delivery.
Compare with AVIF for photo-heavy workloads.

What to do with optimo

Optimize WebP Compress WebP Resize WebP Convert between formats

npx optimo image.webp

Related conversions

Convert HEIC to WebP Convert PNG to WebP Convert JPEG to WebP Convert WebP to PNG Convert WebP to JPEG Convert WebP to AVIF Convert WebP to HEIC Convert WebP to JPEG XL Convert WebP to GIF Convert AVIF to WebP

More image formats

PNG JPEG AVIF HEIC JPEG XL GIF SVG

Frequently asked questions

What is WebP?: WebP (.webp) is a image format. Modern image format with great compression and broad browser support. It uses both compression, supports transparency and animation.
What is WebP used for?: WebP is commonly used for: web images, thumbnails, mixed photo + graphics.
How do I optimize WebP files?: Run "npx optimo image.webp" in your terminal. Optimo applies format-specific compression to reduce WebP file size while preserving quality.