Choosing the right image format is one of the easiest ways to improve your website’s performance. But with so many options, it can be confusing. Here is a breakdown of the big three.

1. WebP (The Modern Standard)

WebP is the current king of the web. Developed by Google, it provides superior lossless and lossy compression.

  • Pros: Smallest file sizes, supports transparency, supports animation.
  • Cons: Requires fallback for some very old browsers (though rare today).

2. JPG / JPEG (The Classic)

JPG is best for photographs where you can afford some quality loss to save space.

  • Pros: Universal compatibility, great for complex photographs.
  • Cons: No transparency, larger file sizes than WebP.

3. PNG (The Detail Master)

PNG should be used when you need pixel-perfect accuracy or transparency.

  • Pros: Lossless quality, perfect transparency.
  • Cons: Very large file sizes, especially for photos.

Recommendation

For 90% of web use cases, WebP is the correct choice. It offers the best balance of quality and performance.