Compress Images for websites — Free & Instant

Web image optimization is one of the highest-impact improvements for site speed, Google Core Web Vitals scores, and organic SEO rankings. Use ImageSmith's free image optimizer to compress your websites images directly in your browser — no account needed, no watermarks, and no ads. Target under 200KB per image for best results on websites.

Max File Size

200 KB

Recommended Format

WebP

Dimensions

Match display dimensions — use responsive images with srcset

websites Compression Tips

  • 1.Target under 200KB for hero/banner images, under 100KB for thumbnails
  • 2.Use WebP or AVIF for the best compression-to-quality ratio
  • 3.Implement lazy loading: add loading="lazy" to non-critical images
  • 4.Use Next.js Image component or similar for automatic optimization

Compress by Format

Other Platform Optimizers

websites Image Optimization FAQ