What is PNG Compressor?
PNG files too large? Our compressor optimizes encoding and color quantization to significantly reduce PNG file sizes while maintaining visual quality. Adjust the quality level to find the perfect balance between clarity and file size. Everything runs in your browser — your images stay private. Great for website optimization, email attachments, and cloud storage savings.
Use Cases
- ◆Website image optimization
- ◆Cloud storage savings
- ◆Email attachment compression
- ◆App icon compression
- ◆Batch image processing
How to Use
- 1Upload your PNG image
- 2Adjust compression quality
- 3Preview before/after comparison
- 4Download the optimized PNG
Features
- ✓Adjustable quality
- ✓Before/after preview
- ✓Color quantization optimization
- ✓Browser-local processing
- ✓Free to use
- ✓No signup needed
- ✓Fast processing
- ✓Privacy secure
FAQ
Does PNG compression affect transparency?
We preserve transparency as much as possible. At high quality settings, transparency is nearly unaffected. Very low quality may cause edge artifacts.
Are my images uploaded?
No. All compression happens in your browser. Images never leave your device.
Is this tool free?
Yes — completely free. No accounts, no paywalls. Just open the page and go.
Does my data get sent to a server?
No. Everything runs in your browser. Your data never leaves your device.
Does it work on my phone?
Absolutely. Works great on phones, tablets, and desktops alike.
How fast is it?
Instant for most inputs. Large datasets might take a second or two.