What the tool changes
Optimizes PNG encoding and can use palette reduction when the installed PNG quantizer is available.
Compress PNG
Reduce PNG file size online. Learn how it works, what may change, and how to verify the result. Private temporary files expire after 6 hours.
◈ Encrypted transfer◷ Short retention⊘ No watermark◎ Works on every device
Compress PNG: the short answer
Reduce PNG file size online. Optimizes PNG encoding and can use palette reduction when the installed PNG quantizer is available.
What to know before you use Compress PNG
Compress PNG can affect quality, metadata, compatibility, or structure. The notes below show what to check in plain language.
What can go wrong
Palette reduction can simplify gradients even though PNG itself supports lossless storage.
How to verify the result
Zoom into transparency edges, gradients, and small interface text.
A three-step Compress PNG checklist
- Before: Keep the source file and open it once to confirm that it is not damaged.
- During: Review every setting shown for Compress PNG instead of accepting a value you do not understand.
- After: Open the result and check it against the points above before you rely on it or delete the original.
Compress PNG tip: Compare file size with visible quality. A smaller download is useful only when the destination can open it and the important detail still holds up.
Before using Compress PNG for important work, browse all file tools, read the file-format guide, or review how temporary uploads are protected.
How long the result stays available
Your Compress PNG result is stored for 6 hours unless you sign in and save it to your private library.
Compress PNG questions
Is my original file changed by Compress PNG?
No. Compress PNG creates a distinct output file; the source you uploaded is never modified.
What can go wrong when using Compress PNG?
Palette reduction can simplify gradients even though PNG itself supports lossless storage.