Compress Images for WordPress — Free & Instant

Optimizing images before uploading to WordPress dramatically improves page load speed, Core Web Vitals scores, and SEO rankings. WordPress 5.8+ natively supports WebP. Use ImageSmith's free image optimizer to compress your WordPress images directly in your browser — no account needed, no watermarks, and no ads. Target under 500KB per image for best results on WordPress.

Max File Size

500 KB

Recommended Format

WebP

Dimensions

Max 1200px wide — WordPress generates thumbnails automatically

WordPress Compression Tips

  • 1.Target under 200KB per image for optimal page speed scores
  • 2.Use WebP format — WordPress 5.8+ supports it natively
  • 3.Regenerate thumbnails after bulk uploading pre-optimized images
  • 4.Install a lazy-loading plugin to defer off-screen image loading

Compress by Format

Other Platform Optimizers

WordPress Image Optimization FAQ