Workflow guide

Image compression for the web

Compression is not just lowering quality. Width, format, and content type matter just as much.

Last updated: June 1, 2026

Resize before you chase quality sliders

A page image that only renders at 1200px wide should not be uploaded at 4000px wide unless you have a concrete reason. Width reduction often creates cleaner savings than extreme compression and directly helps page speed and Core Web Vitals.

For many blog and documentation layouts, 1600px, 1200px, or 1024px is enough.

Format choice matters

Use WebP first for modern sites, JPG for older compatibility or photo-heavy workflows, and PNG when the asset still needs transparency or lossless editing.

Picking the wrong format can cost more bytes than any slider adjustment later.

Check the failure cases

Compression problems usually show up in text edges, gradients, UI lines, and product details. Those are the parts to inspect before shipping an image.

The Image Compressor and Image Resizer let you adjust both size and output format in the browser.