Docket № I1 · Optimize
Compress PNG Images
PNG is lossless, which makes photos saved as PNG very large. This tool re-encodes them with adjustable compression so they become a fraction of the size.
Drop files here, or click to browse
JPG, PNG or WEBPProcessed entirely in your browser — nothing is uploaded
For graphics that need transparency, use the Image Converter to save as WEBP instead, which keeps transparency and still compresses well.
Need a different setting? Open the full Compress Image tool.
How to compress PNG Images
- Add a PNG.
- Set the quality.
- Download the compressed image.
Stays on your device
Every file is processed inside your browser. Nothing is uploaded, so your documents never touch a server.
No sign-up, no watermark
No account, no daily cap and nothing stamped on your file. Open the tool and get your result.
Works without internet
Once this page has loaded you can switch off Wi-Fi and the tool keeps working — proof nothing leaves your device.
Frequently asked questions
Is transparency kept?
The compressor outputs JPG, which fills transparency with white. For transparent graphics, convert to WEBP instead.
Why are PNG photos so big?
PNG stores every pixel exactly. That is perfect for screenshots and logos but wasteful for photographs.