Image compression guides
Short, accurate explanations for people who want to know why a setting works, not just which button to press.
- Lossy vs lossless compressionWhat each kind throws away, with a live 8×8 JPEG block you can quantise yourself.
- WebP vs AVIF vs JPG: the best image format for the webSize, quality, speed and browser support compared, plus a live check of your browser.
- Image compression for Core Web VitalsHow image bytes turn into LCP time, a byte budget calculator, and an AI review of your image markup.