Compress PNG
Your file is already PNG — it is just bigger than it needs to be. This keeps the format and cuts the bytes, choosing quality automatically from the image itself.
Drop your PNG files here
Drag and drop, choose files, or paste from your clipboard.
Up to 20 images at once.
Each image can be 50 MB at most.
JPG · PNG · WebP · AVIF · HEIC — nothing is stored on our servers
How much smaller?
We ran a PNG file back through our own engine at automatic quality and measured what came out. The format is unchanged — only the bytes.
| Source file | 3.2 MB |
|---|---|
| After conversion | 2.7 MB |
| Conversion time | 1638 ms |
| Quality chosen | 60 |
File size17.0% smaller
1920×1080 reference image · median of 5 runs · libvips 8.16.1 · measured August 28, 2026
Your own file will land somewhere else — a photo, a screenshot and a flat logo compress very differently. What carries over is the direction and the rough scale.
About the format
Lossless compression with an alpha channel. Pixel-perfect, which also makes it the heaviest option for photographs.