How to Compress an Image Without Losing Quality

Image compression trades file size for visual quality — but done right, you can cut 50–90% of the bytes with changes your eyes barely notice. Here's how to do it properly.

1. Pick the right format

Modern WebP files are typically 25–50% smaller than equivalent JPGs. PNG should be reserved for images that need transparency or flat graphics with sharp edges.

2. Find your quality sweet spot

For JPG/WebP, quality 75–85 is usually visually identical to the original. Below 60, artifacts appear on edges and text. Always compare a before/after preview — our Image Compressor shows sizes side by side.

3. Resize before compressing

A 4000-pixel photo displayed at 800 pixels wide wastes 90%+ of its data. Resize first, then compress — you'll save far more.

4. Never compress twice

Each JPG save loses data. Keep an original and compress copies.

Try it free: Compress Image →