JPEG vs PNG vs WebP vs AVIF: Which Image Format Should You Use?

JPEG is widely supported and works well for photos. It does not support transparency and can show artifacts at very low quality.

PNG is lossless and supports transparency. It is excellent for logos, graphics and screenshots, but file sizes can be larger.

WebP is a strong default for web use because it supports both lossy compression and transparency.

AVIF can be even smaller, but browser and platform support can vary, so always test before using it for strict upload portals.