Compress PNG
Compress PNG — Reduce PNG File Size Online Free
PNG files can be surprisingly large. Our smart color quantization algorithm reduces PNG file size dramatically while keeping transparency and visual quality — all in your browser, no upload, no signup.
Why use this compress png tool?
Advanced PNG color quantization for smaller files
Preserves transparency and sharp edges
Batch compress multiple PNGs at once
Quality slider for optimal size/quality
Before/after comparison slider
100% local, private, free, no signup
Frequently Asked Questions
How do I compress a PNG?
Drop your PNG onto the compressor or click to browse. It is compressed instantly in your browser using smart color quantization. Adjust quality if needed, then download.
Can I compress PNG without losing transparency?
Yes. Our PNG compression preserves alpha-channel transparency while reducing file size.
How much can I compress a PNG?
For icons, logos and screenshots, compression of 50–80% is common. The exact ratio depends on image complexity and the quality setting.
Is PNG compression free?
Yes, completely free with no watermark, signup, or file limits. All processing happens locally in your browser.