Compress PNG Online — Free Lossy Compressor
Compress PNG online by re-encoding to a smaller format. PNG screenshots and exported graphics often shrink 60-80% with no visible loss. Drop the file and pick the quality.
PNG vs JPG for compression
PNG is lossless and great for screenshots, logos, and graphics with transparency. For photographs without transparency, our compressor outputs JPEG, which is dramatically smaller than PNG for the same visual quality.
How small can a PNG get?
A 1.5 MB PNG screenshot typically lands around 300-400 KB after compression at quality 75 with no visible artifacts. Heavy compression at quality 50 takes it under 200 KB.
When to keep PNG output
If your image needs transparency, use the image converter instead and choose PNG or WebP as the target — both preserve the alpha channel.
Frequently asked questions
Does the compressor keep transparency?
Compression outputs JPEG which flattens transparency. For transparency, use the format converter to export PNG or WebP.
Why does PNG compress so much?
PNG screenshots usually contain lots of redundancy that lossless PNG cannot eliminate; lossy JPEG can.
Is it actually free?
Yes. No signup, no daily cap on normal personal use, no watermark on the output. Display ads keep the site free.
Does it work on a phone?
Yes. The upload box opens the camera roll on mobile browsers directly.
What happens to my photo?
Uploads are processed to return a download link and removed automatically within an hour. We do not view, share, or sell your files.