How does PNG compression work?
PNG uses lossless compression, so re-encoding can slightly reduce size. For dramatic reductions, convert to WebP which supports both lossy and lossless modes.
All Tools
PNG Compressor
Optimize PNG files or convert to WebP for much smaller sizes while keeping transparency.
Drag & drop an image here, or click to browse
Supports PNG
Max file size: 20MB
Privacy and limits
Your image is processed on your device without uploading it to a server. No account is needed. Convert one image up to 20MB at a time.
How to compress a PNG
- 1
Upload a PNG file
Select the PNG image you want to compress.
- 2
Choose output mode
Select WebP for smaller sizes or keep PNG for maximum compatibility.
- 3
Download the result
Save the compressed file to your device.
PNG Compression FAQ
Will converting to WebP preserve transparency?
Yes. WebP fully supports transparency, just like PNG.
When should I keep PNG format?
Keep PNG when you need maximum compatibility with older software, or when the file will be edited further in design tools.
Is this processed locally?
Yes. All compression happens in your browser. No images are uploaded to any server.
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