Reduce PNG color palette for dramatically smaller files. Free online color quantization tool — no signup required.
Drop your images here
Supports HEIC, JPG, PNG, WebP, AVIF, TIFF, GIF · Up to 50 files · 50MB max
Fewer colors means smaller files but more visible color banding
Dramatically reduce PNG file sizes by reducing the color palette. Most PNG images use far more colors than necessary. By quantizing to 256, 128, or fewer colors, you can achieve 50-80% file size reduction with minimal visual difference. Perfect for web graphics, icons, and illustrations.
Your images are processed entirely in your browser. They are never uploaded to any server. Once you close the tab, all data is gone. No tracking, no storage, no cookies for your files.
For photographs with complex gradients, some banding may be visible. For graphics, icons, and illustrations, results are typically indistinguishable from the original.