Compress PNG Files
Reduce PNG file size while maintaining quality. Fast, free, and secure.
✨ Key Benefits
- Preserves full alpha transparency
- Keeps original pixel dimensions
- Smart PNG-8/PNG-24 palette optimization
- No watermarks, ever
- Runs in your browser with results in seconds
💡 Why Use This?
- Shrink logos and icons for faster page loads
- Keep transparent UI graphics small in apps and web
- Email screenshots without hitting attachment limits
- Store design exports without filling your drive
- Meet upload size caps on CMS platforms and marketplaces
How to Compress PNG Files
Upload File
Select or drag your PNG file to the upload area above.
Compress
Your file is automatically compressed to reduce size.
Download
Download your compressed file instantly.
Why Compress PNG Files?
PNG is lossless and supports transparency, which makes it perfect for logos, icons, and screenshots — but that also makes files heavy, especially photos saved as PNG. Compressing a PNG removes redundant data and optimizes the color palette so the file shrinks 30-70% with no visible change.
How PNG Compression Works
PNG uses lossless DEFLATE compression. Our tool re-optimizes that compression, prunes unused palette entries, and can quantize 24-bit PNGs to an efficient 8-bit palette when the image has few colors — all while keeping the alpha channel intact.
PNG-8 vs PNG-24: Picking the Right Depth
PNG-24 stores millions of colors and suits complex images; PNG-8 uses up to 256 colors and is far smaller, ideal for flat graphics, icons, and logos. Our compressor selects the smallest depth that still looks right.
When to Use PNG vs JPG or WebP
Keep PNG for transparency, line art, text, and screenshots. For photographs, JPG or WebP will be much smaller — if your PNG is really a photo, converting it saves far more than compression alone.
Lightning Fast
Cloud-powered processing delivers results in seconds, not minutes.
Bank-Level Security
256-bit SSL encryption. All files automatically deleted after 1 hour.
100% Free
No hidden costs, no registration required. Compress files instantly.
Frequently Asked Questions
Does compressing a PNG remove transparency?
No. We keep the full alpha channel, so transparent areas stay transparent.
How much smaller will my PNG be?
Usually 30-70%, depending on colors and detail. Flat graphics with few colors shrink the most.
Is PNG compression lossless?
PNG itself is lossless; we re-optimize compression and, where safe, reduce the color palette with minimal visible change.
Should I use PNG for photos?
Photos are far smaller as JPG or WebP. Use PNG for transparency, logos, icons, and text.
Is there an upload size limit?
Up to 20 MB per PNG, which covers virtually all web and app graphics.
Are my uploaded files safe and private?
Yes. Uploads use a 256-bit SSL encrypted connection and every file is automatically deleted from our servers within one hour. We never add watermarks.
