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The PNG is processed locally in your browser and does not need to be uploaded.
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COMPRESS PNG
Compress PNG
Shrink PNG files locally with palette-aware compression while preserving transparency and pixel dimensions.
Local browser processing
Upload your PNG
Choose visual quality, compress the PNG locally and compare file size and appearance before downloading.
1. Source
Choose or drop your PNG file
Drag it here or click to browse
2. Compression settings
85% is a strong default. Lower values use fewer colors for smaller files. 100% switches to lossless optimization.
Processed locally. Your file never leaves your device.
Optimizing PNG locally…
3. Result
Ready
compressed.png
Original size—
Compressed size—
Saved—
Original size![Original PNG preview]()
Compressed size![Compressed PNG preview]()
Transparency and pixel dimensions are preserved. Lower quality can reduce the color palette to achieve much smaller files.
FastPrivateLocal
Benefits
Stronger PNG compression with control
Browser-based
The operation runs with browser image APIs on your device.
Local by design
Supported processing happens directly in your browser, so your files stay on your device.
How it works
How to compress a PNG
- 1Choose or drag in a PNG file.
- 2Set visual quality. Lower values reduce the color palette; 100% keeps lossless colors.
- 3Click Compress PNG, compare the original and compressed sizes and download the result.
Keep working
Related tools
FAQ
Common questions
How does PNG quality reduce file size?
Below 100%, the compressor reduces the number of colors used by the PNG while preserving transparency and dimensions. This can dramatically reduce size for graphics, screenshots and many web images. At 100%, it uses lossless encoding.
Is my PNG uploaded to a server?
No. The image is processed locally in your browser.
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