Compress PNG Online Free
Reduce PNG file size by up to 80% without losing quality. No upload — processed entirely in your browser. No login required.
Drag & drop PNG images here or browse files
Supports JPG, PNG, WebP • Max 50MB per file • Up to 20 files at once
Why Compress PNG Files?
Faster Websites
Large PNG files slow down page load times. Compressing PNGs by 50-80% makes your website significantly faster and improves SEO rankings.
Save Storage & Bandwidth
Smaller PNG files use less server storage and bandwidth. This reduces hosting costs and makes emails with attachments more reliable.
Keep Transparency
PNG supports transparent backgrounds, making it essential for logos and graphics. Our compressor preserves transparency while reducing file size.
Frequently Asked Questions
How much can I compress a PNG file?
PNG compression typically reduces file size by 30-70% depending on the image content. Images with large areas of solid color compress more, while photographs compress less. You can also convert PNG to WebP for even smaller files.
Does compressing a PNG reduce quality?
Our tool converts PNG to a compressed format with adjustable quality. At higher quality settings (75-90%), the visual difference is negligible. At lower settings, some detail is traded for smaller file size.
Why are PNG files so large?
PNG uses lossless compression, which preserves every pixel perfectly but results in larger files than JPG or WebP. Photographs saved as PNG can be 5-10x larger than JPG equivalents. Converting to WebP or JPG can dramatically reduce size.
What's the best format for compressed PNGs?
If you need transparency, keep the PNG format but reduce dimensions or quality. If transparency isn't needed, WebP offers 25-35% smaller files than PNG at the same quality, and JPG offers even smaller files for photographs.