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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