Why doesn't PNG have a quality setting like JPG?

PNG is a lossless format by design — every pixel is stored exactly. Pixo compresses it by reducing how many distinct colors are used (palette quantization) instead, which is the only real lever PNG has.

Will reducing colors make my PNG blurry?

No — palette reduction doesn't blur or add artifacts the way JPG compression can. At the smart default (256 colors) most screenshots and graphics look identical to the original; going much lower can introduce visible banding in gradients.

Should I convert my PNG to JPG instead?

Only if the image is a photo and you don't need transparency — JPG will compress a photo much smaller. If the PNG has transparency or sharp text/lines, keep it as PNG and use the Colors slider instead.

Compress PNG images online, for free

PNG is a lossless format — there's no "quality" setting like JPG has. Pixo shrinks PNGs by reducing the color palette (fewer colors, same lossless format), which is the only way to meaningfully compress a PNG without converting it to something else.

Drop images here

or click to browse

JPG, PNG, WebP, GIF — up to 20 files, 25 MB each

Release — they stay on this device

Compressed on your device. Never uploaded. Privacy Policy

How it works

01Drop one or more PNG files into the box above.
02Click "Compress" — Pixo quantizes to a smart-default 256-color palette automatically.
03Screenshots and flat-color graphics often compress a lot; open a result's "Adjust" panel to try fewer colors with a live size preview if you want more.
04Download each result, or grab all of them at once as a ZIP.

Tips for better results

PNG is best for screenshots, logos, and graphics with flat colors and sharp edges — it keeps every pixel exact, which is exactly what those need.
For actual photos, JPG or WebP will compress far smaller than PNG ever can, since photos have too many colors for palette reduction to help much.
If a PNG still needs to be smaller after compressing, try the Colors slider in its Adjust panel — screenshots and icons often still look identical well below 256 colors.

Related tools

Main image compressor

Compress JPG, PNG, and WebP in one place.

Compress a JPG

Format-specific tips for JPG photos.

Convert to WebP

WebP often compresses smaller than PNG for photos.