WebP vs JPEG/PNG/GIF - Performance & Size Comparison

Real-world cases and detailed data showing WebP's compression gains and speed improvements.

Real-world Comparisons

JPG
-42%

HD Photo (JPEG)

1920×1080 resolution, quality 85

Original
1.2 MB
WebP
700 KB
PNG
-61%

Transparent Illustration (PNG)

Complex gradients & transparency

Original
980 KB
WebP
380 KB
GIF
-44%

Animated Graphic (GIF)

Short video converted to animation

Original
1.6 MB
WebP
900 KB

Impact on Core Web Vitals

LCP (Largest Contentful Paint)

Smaller image sizes mean faster loading times, significantly improving LCP scores.

CLS (Cumulative Layout Shift)

Fast-loading WebP images with explicit dimensions help minimize layout shifts.

Detailed Data Comparison

Original Format Original Size WebP Size Space Saved
JPEG (Q85) 1.2 MB 700 KB 42%
PNG (Transparent) 980 KB 380 KB 61%
GIF (Animated) 1.6 MB 900 KB 44%
PNG (Icon) 45 KB 12 KB 73%
Note: Data based on average test results from typical scenarios. Actual compression rates vary by image content.

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