Compress PNG
Reduce PNG file size: lossless optimization (OxiPNG) or reduction to 256 colors, transparency preserved. Free, nothing is uploaded.
Accepted: PNG · Max 300 MB per file
Processed on your device — nothing is uploaded.
How to compress a PNG
Drop your PNG images above.
Pick Light (lossless) or Recommended / Strong (fewer colors, much smaller).
Click Compress and download the optimized PNGs.
How it works
- Photos and images (JPG, PNG, WebP, AVIF, HEIC)
- JPGs go through MozJPEG, often 30–70% smaller with no visible difference. PNGs are optimized losslessly with OxiPNG or reduced to 256 colors. WebP and AVIF roughly halve the size again.
Everything happens in your browser: your files are never uploaded to a server.
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