Compress JPG, PNG, or WebP Images
Set output quality and compare file sizes.
Files never leave your device
Compress Image converter
Checking whether this browser can create WebP files…
Drop your images here
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Your files never leave your device.
Your images
When to use Compress Image
Choose JPG for broad compatibility or WebP for web delivery. The quality slider controls lossy encoding; the results show each input and output size so you can compare the change before downloading.
Quality and file size
PNG inputs are re-encoded into the selected lossy format. JPG fills transparent pixels with white; WebP can retain transparency. Lower quality can soften fine detail, and the output may still be larger than the source.
Frequently asked questions
Can I compare file sizes?
Yes. Each result row shows the input size and encoded output size.
Which output should I choose?
Choose JPG for compatibility. Choose WebP for web use if your browser supports WebP encoding.
What happens to PNG transparency?
WebP can retain transparency; JPG fills transparent areas with white.
Are images uploaded?
No. Compression runs locally in this browser tab.