Why convert PNG to WebP?
WebP images are typically 25–35% smaller than PNGs at the same visual quality. Converting PNGs to WebP speeds up your website, reduces bandwidth usage, and improves Core Web Vitals scores. All modern browsers support WebP.
How WebP compression works
WebP uses predictive coding to compress images — it predicts pixel values based on neighboring blocks and only stores the difference. For lossy WebP, it also uses quantization similar to JPEG but with more efficient block partitioning, resulting in 25-35% smaller files at equivalent quality.