Compress PNG Images for WordPress

Optimizing images before uploading to WordPress dramatically improves page load speed, Core Web Vitals scores, and SEO rankings. WordPress 5.8+ natively supports WebP. Lossless image format that supports full alpha transparency. Best for logos, graphics, and images requiring sharp edges. Use ImageSmith to compress your PNG images to the ideal file size for WordPress — target under 500KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.

Recommended format

WebP

Max file size

500KB

Dimensions

Max 1200px wide — WordPress generates thumbnails automatically

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

Compress PNG for Other Platforms

Compress PNG for WordPress — FAQ