How to Compress Images Without Losing Too Much Quality

Compression is about finding the smallest file that still looks good in context. The right setting depends on the image content, format and where the image appears.

Resize before compressing

If an image is much larger than the final layout, resize it first. Compression alone cannot fix unnecessary dimensions.

A smaller pixel size often creates a larger saving than changing quality by a few percentage points.

Use the right format

For many website photos, WebP or compressed JPEG can be much lighter than PNG.

For transparent graphics, WebP or PNG may be appropriate depending on your compatibility needs.

Check visual details

Look at faces, text, edges and gradients after compression. These areas often reveal quality loss first.

Do not judge only by file size; check whether the result still works for the reader.

Create a repeatable target

For blog images, a few hundred KB is often a practical target. For large hero images, the target may be higher but should still be intentional.

PublishPixel estimates compression opportunity and offers browser-based exports for common formats.

Key takeaway: Resize to the right dimensions, choose a practical format and compress until the image remains clear enough for its purpose.