Reduce Image Size Without Losing Quality

"Smaller without quality loss" really means mostly invisible loss. Pull these three levers in order.

1. Right format

Use the format that suits the content: JPG/WebP for photos, PNG/SVG for flat graphics and logos. A photo stuck in PNG is huge for no reason — convert it.

2. Right dimensions

A 6000-pixel-wide photo displayed at 800px is wasting ~98% of its data. Resize to the size you actually show — this is the single biggest, lossless win.

3. Smart compression

Now compress at ~80% quality, watching the live size. The eye won't notice; the file shrinks a lot.

Putting it together

Format → dimensions → compression, in that order, routinely cuts a multi-megabyte photo to a couple hundred KB with no visible change. To hit an exact target, see compress to 100 KB. Related: file size vs dimensions.