Will my transparency be preserved?

Yes — the output stays PNG, so transparent backgrounds are kept intact. That's the main reason to compress as PNG rather than convert to JPG.

Why are PNGs so large?

PNG stores every pixel losslessly, which is great for sharp graphics but heavy for detailed images. Compressing trims the size while keeping the format's strengths.

Compress PNG Online — Free & Private

Reduce PNG file size in your browser while keeping transparency — no upload, no watermark.

Target size

Drop an image here or click to choose

processed on your device — never uploaded

PNGs are lossless and often huge — screenshots, logos and graphics can be several megabytes. This tool shrinks a PNG while keeping its transparency, so it loads faster on a website or fits an upload limit without turning into a white-backed JPG.

Everything runs on your device — your PNG isn't uploaded anywhere.

More sizes & options

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Frequently asked questions

Will my transparency be preserved?: Yes — the output stays PNG, so transparent backgrounds are kept intact. That's the main reason to compress as PNG rather than convert to JPG.
Why are PNGs so large?: PNG stores every pixel losslessly, which is great for sharp graphics but heavy for detailed images. Compressing trims the size while keeping the format's strengths.

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🔒 Your files never leave your device. This tool runs entirely in your browser — nothing is uploaded.