How to Compress Images Without Losing Quality

Images are usually the heaviest part of a web page. Compressing them is the single fastest way to speed up your site — and it takes seconds.

The 80% quality rule

For JPEG and WebP, 80% quality is the sweet spot: file size drops 60–80% versus the original, and the difference is invisible to the human eye in almost all cases. Only go lower for thumbnails or decorative backgrounds.

JPEG vs. WebP vs. PNG

• WebP — smallest files, great quality. Supported by all modern browsers. Best default choice.
• JPEG — universal compatibility. Use it when you need maximum support (email, old systems).
• PNG — only for images that need transparency or pixel-perfect sharpness (logos, screenshots with text).

Resize before you compress

A 4000px photo displayed at 800px is wasted weight. Set a max width matching your actual display size first, then compress — the savings multiply.