Image Optimization Guides

Practical knowledge about image formats, compression, and web performance.

How Image Compression Works

Learn how lossy and lossless image compression work, from DCT and quantization to modern approaches for reducing file size.

Compare JPEG, WebP, and AVIF image formats - file size, quality, browser support, and when to use each format.

Practical guide to optimizing images for faster web pages - formats, compression, responsive images, lazy loading, and Core Web Vitals.