Compress PNG
Reduce PNG file size online for free. No signup, no watermark.
Tap to upload or drop a file
.png files · Max 100MB
How it works
Upload
Drop .png
Compress
Pick a level
Download
Smaller file
About PNG compression
PNG uses lossless compression — no visual data is lost. Compression works by finding more efficient ways to encode the pixel data. Tools like palette reduction and higher compression effort can significantly shrink PNG files without any quality loss.
FAQ
Is this free?
Yes, completely free. No signup, no watermarks, no hidden fees.
Is my file safe?
Files are compressed on our servers and immediately deleted. We never store or share your files.
What's the maximum file size?
You can compress files up to 100MB.
Is PNG compression lossy or lossless?
PNG compression is lossless — no visual information is lost. The compressor finds more efficient ways to encode the same pixel data, reducing file size without any quality degradation.
How much smaller will my PNG be?
Results vary by image. PNGs from other tools can often be reduced by 10-40% through better compression algorithms. Already optimized PNGs may see smaller gains.
Will transparency be preserved?
Yes. PNG compression preserves all features including transparency (alpha channel), color depth, and metadata.