No upload · 100% free · Works in your browser
Compress PNG, lossless & free.
Reduce PNG file size without losing a single pixel. Nothing is uploaded. Ever.
Lossless · optimised encoding
Drop images here to compress
or browse files·.jpg, .png, .webp
Files stay on your device — nothing is uploaded
Why compress PNG images?
PNG is the go-to format for screenshots, UI elements, logos, and any graphic that needs hard edges or transparency. But many tools export PNGs with suboptimal compression settings — leaving significant file size on the table.
Unlike JPEG compression, PNG optimisation is lossless: every pixel in the output is identical to the original. You get a smaller file with zero quality trade-off.
PNG vs WebP — what's the difference?
Both formats support transparency (alpha channel). The key differences:
- →PNG: universal compatibility — works in every app, OS, and browser including old ones.
- →WebP: 25–35% smaller than PNG for the same image. Best for web. Not all native apps support it.
- →For web projects started after 2022, WebP is the better default. For anything else, stick with PNG.
Frequently asked questions
PNG Compression