Compress PNG
Drop your PNG files and download them lighter, with their transparency.
- Often half the weight
- Transparency kept
- Never uploaded
Drop PNG images here
JPG, PNG, WebP, AVIF, GIF, SVG, BMP or ICO, one or many. They are read on this device and never sent.
Free · No ads · No sign-up Runs entirely in your browser. Nothing you enter is sent or stored.
How a PNG is made lighter
A PNG can hold sixteen million colours a pixel, and most pictures use a few thousand. Reduced to the 256 that matter most and written with a palette, the same picture often fits in half the weight or less, and on a screenshot, an interface or a drawing the eye rarely finds the difference.
Smooth gradients are where it shows. “Smooth gradients” mixes neighbouring colours to hide the steps, and the file pays for it in weight; turn it off for the lightest file. Where smoothing would make a picture heavier than it was, it is saved in steps and the row says so. Fewer colours, 64 or 16, suit icons and diagrams and make the file smaller still.
What is kept
- Transparency, including the partly transparent pixels of a soft edge.
- The size in pixels, unless you set a width.
- The format: the result is a PNG that opens wherever the original did.
A photograph saved as PNG is better served by another format: PNG to JPG, or PNG to WebP to keep transparency.
Made by Mystya.
We are a web studio in Québec. These tools are free and will stay free: they are how we show what we care about, in something you can use. If you want a site built with the same attention, we would like to hear about it.