CompressPNG images
Shrink PNG files by up to 70% using indexed-color (palette) quantization — transparency is preserved and the result still looks sharp. Drop your PNGs and compress them all in your browser.
Compress PNG images
Drop images here or click to select
Multiple files supported — compressed automatically in your browser
PNG — palette-quantized, transparency keptWhy compress PNG?
PNG is lossless, so its file size is driven by how many distinct colours and pixels the image holds. This compressor applies palette quantization: it reduces the image to a smaller set of colours (you control how many via the quality slider) and re-encodes it as an indexed PNG, which is far smaller while keeping transparency and sharp edges. At 100% quality it falls back to a clean lossless re-encode.
At a glance
| Property | Detail |
|---|---|
| Compression | Lossless / quantized |
| Transparency | Kept |
| Best for | Icons, logos, UI graphics, screenshots |
| Typical saving | 40-70% |
Frequently asked questions
Is it free and private?
Yes. Compression runs entirely in your browser with no upload, and it is free with no sign-up, no watermark and no limits.
Can I compress many images at once?
Yes. Drop as many images as you like and they are compressed in a batch. Download each one or grab them all at once.