Optimize PNG
Reduce PNG file size with lossless optimization. Zero quality loss, guaranteed.
Drop images here or click to browse (up to 10)
JPEG, PNG, WebP, AVIF up to 50MB each
PNG Optimization Guide
Lossless
PNG optimization is lossless — every pixel stays exactly the same.
How It Works
OxiPNG finds the most efficient compression settings for your specific image.
Typical Savings
10-30% size reduction without any quality change.
Best For
Screenshots, graphics, logos, and any image where PNG quality is needed.
Frequently Asked Questions
Is PNG optimization truly lossless?
Yes. PNG optimization reorganizes the compression without changing any pixel data. The output is pixel-identical to the input.
How much can I reduce PNG file size?
Typically 10-30%, depending on how the original PNG was created. Poorly optimized PNGs see larger reductions.
What optimizer do you use?
We use OxiPNG, a high-performance PNG optimizer written in Rust, compiled to WebAssembly.
Should I convert PNG to WebP instead?
If file size is your priority and you don't need lossless quality, converting to WebP gives larger reductions. But PNG optimization is lossless.