Guides & articles

Image formats, compression for web performance and resizing without quality loss, written by the team behind the tool.

Three lossy formats with different ideas about what detail to discard. Where each is supported, how fast it encodes, and when JPEG still wins.

Images decide most LCP scores. How to size them, which quality to pick, when to lazy-load, and whether you need an image CDN at all.

Resampling filters, why big reductions happen in steps, when to sharpen, what DPI means on screen, and the honest limit of upscaling.