Compress PNG
Shrink PNG images with lossy or lossless compression.
Quality
Frequently Asked Questions
How much can PNG be compressed?
Lossy compression can reduce PNG files by 60–90% depending on the image — photos and gradients compress best. Lossless compression saves less but keeps every pixel exact.
Do you upload my images?
No. Compression runs entirely on your device using WebAssembly. You can verify this in DevTools → Network while compressing — your file data never leaves your browser.
Can I convert multiple images at once?
Yes — use Image Factory to build a batch pipeline: convert, compress, crop and resize many images in one flow, entirely on your device.
Need batch processing or more options? Open full image converter