Compress PNG Images for Webflow

Webflow projects are performance-critical. Unoptimized images are the #1 cause of slow Webflow sites. Pre-compressing images ensures fast load times and high Lighthouse scores. 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 Webflow — target under 4,000KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.

Recommended format

WebP

Max file size

4,000KB

Dimensions

Match CSS display dimensions — use 2× for Retina

Webflow supports WebP and AVIF natively — use for best performance
Set explicit width/height in Webflow image settings to prevent CLS
Use 2× source images (e.g., 1600px for 800px display) for Retina sharpness
Enable lazy loading on Webflow images for off-screen content

Compress PNG for Other Platforms

Compress PNG for Webflow — FAQ