Processed in your browser
Compress PNG Online Free
Reduce PNG file size for websites, forms, and sharing while preserving transparency where the browser supports it.
Why use Compress PNG?
- Reduce upload errors by creating smaller image files for forms, email, websites, and social media.
- Control output settings such as quality, dimensions, format, or target size depending on the tool.
- Process common image workflows without installing desktop software.
Common use cases
Online formsEmail attachmentsProfile photosWebsite images
How to use Compress PNG
1
Upload a PNG image.
2
Preview the optimized result.
3
Download the smaller PNG file.
Frequently Asked Questions
Does PNG compression keep transparency?
PNG output preserves transparency when the source image contains transparent pixels.
Are my files private?
Client-side tools process files directly in your browser. When a future tool needs server-side processing, CompressFree will clearly label that behavior before upload.
Why are PNG savings sometimes smaller?
PNG is a lossless format, so file-size savings depend heavily on the image content.