Image Optimizer for Website Speed

Images are usually the biggest files on a webpage. If they're not optimized, they delay loading, hurt Core Web Vitals, and can reduce conversions. A good image optimization process is simple: use the right dimensions, pick an efficient format, and compress without visible quality loss.

How images affect Core Web Vitals

Large images slow down the first meaningful paint and can increase LCP. Unspecified image sizes can also cause layout shifts (CLS). Optimizing image weight and dimensions is one of the fastest ways to improve real-world performance.

Reduce image file sizes to improve LCP
Use proper dimensions to avoid wasted bytes
Set width/height (or aspect ratio) to prevent CLS

A practical optimization checklist

Start with the images that appear above the fold and on high-traffic pages. Resize them to the display dimensions, compress them, and prefer modern formats like WebP when possible. Keep decorative images very small.

Resize to actual display size
Compress to reduce transfer size
Prefer WebP for most website images
Prioritize above-the-fold images first

A simple workflow you can repeat

Use an image resizer to match your layout, compress for file size, and optionally convert to WebP. For teams, document your target sizes (hero, content, thumbnails) so everyone produces consistent outputs.