Compress PNG Images Online
Reduce PNG file sizes by up to 80%. Fast, free, and completely private — no server uploads required.
Drop images here or click to upload
PNG, JPG, WebP — up to 50MB each
Lossless and lossy PNG compression options
Reduce PNG sizes by up to 80%
Maintains transparency in PNG files
Batch compress multiple PNGs at once
Convert PNG to smaller formats like WebP or JPG
100% client-side — images stay on your device
Frequently Asked Questions
Does compressing PNG reduce quality?
Compresso uses smart compression that minimizes visible quality loss. At 80% quality, most images look identical to the original while being significantly smaller.
Is PNG compression lossless?
PNG supports both lossless and lossy compression. When converting to JPG/WebP, lossy compression achieves much better size reduction.
What's the maximum file size I can compress?
Since everything runs in your browser, the limit depends on your device's memory. Most devices handle files up to 50MB easily.
Does Compresso remove PNG transparency?
No. Compresso preserves the alpha channel (transparency) when compressing PNG files. If you convert to JPG, transparency is replaced with a white background.
How does Compresso compare to TinyPNG?
Both tools compress PNGs effectively, but Compresso processes everything in your browser — your images never leave your device. TinyPNG uploads files to their servers for processing.
Can I compress multiple PNG files at once?
Yes! Compresso supports batch compression. Upload multiple PNGs and compress them all simultaneously, then download individually or as a ZIP.