Compress PNG Images Online.
Optimize PNG screenshots, transparent graphics, and logos without losing transparency or image fidelity.
Drop your images here to compress
or, drag and drop images here
Reduce image file size with zero quality loss • Processed locally
How to Compress PNG Files Online
Select PNG Files
Upload one or multiple PNG graphics or screenshots directly from your device.
Choose Target Size
Set a target KB ceiling or adjust the compression level to minimize file weight.
Download Optimized PNG
Get your optimized PNG files with preserved alpha channels and transparent backgrounds.
Frequently Asked Questions
Will compressing a PNG remove its transparent background?
No. Our PNG compression engine strictly preserves full alpha-channel transparency. Icons, logos, product cutouts, and UI graphics retain crisp transparent edges without any dark borders, fringing, or background discoloration, making the compressed files completely ready for immediate web and mobile application deployment.
How does PNG compression reduce file size without losing quality?
PNG utilizes lossless Deflate compression combined with row filtering. Our compressor optimizes color palette indexing and reduces redundant scanline data, stripping unnecessary ancillary metadata chunks while preserving every single pixel value identically so your graphics remain razor-sharp and pixel-perfect.
Why are PNG files typically larger than JPEGs?
PNG is a lossless format that records exact pixel values and transparency data without discarding any visual information. This makes PNG superior for diagrams, logos, and screenshots, but naturally larger in file size for photographic scenes where subtle gradients require immense uncompressed data to store.
When should I convert a PNG to WebP or JPEG instead of compressing?
If your PNG contains a photograph without transparency, converting it to WebP or JPEG will reduce file size by 70% to 90% more than PNG compression alone. Keep PNG format if you require transparency, crisp typography, UI screenshots, or pixel-perfect vector rasterizations with sharp geometric edges.
Can I compress high-resolution 24-bit and 32-bit PNG graphics here?
Yes, our tool handles 8-bit indexed, 24-bit RGB, and 32-bit RGBA PNG files seamlessly. The entire compression process executes locally in your browser memory, ensuring rapid processing and complete client-side security even for multi-megabyte graphic assets, digital illustrations, and high-DPI application mockups.