PNG Image Compressor
Reduce PNG file sizes while preserving transparency and sharp edges. Choose between lossy compression for maximum size reduction or lossless mode to maintain perfect pixel quality.
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Your images are processed locally in your browser and never sent to our servers. No account needed.
How to Compress a PNG Image
- 1
Drop your PNG image into the upload area or click to select.
- 2
Adjust the quality slider to balance file size and visual fidelity.
- 3
Review the before/after comparison and savings badge.
- 4
Click Download to save the optimized PNG to your device.
Frequently Asked Questions
Does PNG compression support transparency?
Yes, PNG uses alpha channels for transparency. Our compressor preserves transparency in all modes.
What is lossless PNG compression?
Lossless compression reduces file size without changing any pixel values. Toggle the 'Lossless' option to enable it.
Why is my compressed PNG still large?
PNG is best for images with sharp edges, text, and transparency. For photos, JPG or WebP will be much smaller.
Can I compress screenshots?
Yes. PNG is the ideal format for screenshots and the compressor handles them very well.
What quality setting should I use for PNG?
For logos and UI assets, use 85%+ to preserve crispness. For background images, 70% is usually indistinguishable.