WebP Image Format Explained: Pros, Cons & Conversion Tips
What Is WebP?
WebP is a modern image format developed by Google in 2010. It supports both lossy and lossless compression, transparency (alpha channel), and animation — essentially combining the capabilities of JPG, PNG, and GIF into a single format with better compression efficiency.
Pros of WebP
WebP files are 25-35% smaller than JPEG and 26% smaller than PNG at equivalent quality. This means faster page loads and lower bandwidth costs. Full transparency support makes it a PNG alternative, and animated WebP can replace GIF with much smaller files.
Cons of WebP
Despite wide browser support (Chrome, Firefox, Edge, Safari 14+), some older systems and applications still can't open WebP. Email clients, WordPress media libraries (older versions), and some desktop software may require JPG or PNG. When you need maximum compatibility, WebP isn't the safest choice.
When to Use WebP
WebP shines on the web. If your audience accesses content through modern browsers, serving WebP files can significantly improve page speed scores. Many websites use WebP with a JPG/PNG fallback via the HTML <picture> element.
Converting To and From WebP
CocoConvert supports both directions: convert any image to WebP for web delivery, or convert WebP back to JPG/PNG when you need compatibility. The conversion preserves transparency (when targeting PNG) and optimizes quality automatically.