PixCloak

Research: JPEG vs WebP on varied images

Method summary: compress 10 public CC0 images (portrait, sunset, UI, text, low‑light, landscape, product, food, architecture, document) at the same target sizes (200KB/300KB/500KB/800KB). Compare file size, runtime, and perceived artifacts.

Findings

  • WebP is typically 10–25% smaller at the same perceived quality for photos
  • JPEG remains competitive on gradients/skin tones when tuned carefully
  • PNG fits UI/text/icons or when lossless + alpha is needed

Example (before vs after)

  • Original: 3.2MB → WebP 500KB (Saved ~84%)
  • Original: 1.8MB → JPEG 500KB (Saved ~72%)
demo-1demo-2

Try quickly in /compress?kb=300 or /compress?kb=500 and switch formats.

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