WebP or JPG
WebP gives the smallest size at the same quality; JPG is universally compatible.
Compress Image
Shrink an image for the web or email. Choose format and quality and see the result instantly — processing is local, with no upload.
Instant
The quality slider recomputes the size live — you see the saving immediately.
In your browser
The image is never uploaded — compression happens locally.
Frequently asked questions
Is my image uploaded?
No. Compression runs entirely in your browser via canvas — the image never leaves your device.
Should I choose WebP or JPG?
WebP reaches a smaller file at the same visual quality and supports transparency. Choose JPG if you need maximum compatibility with older software.
Why is the new file sometimes larger?
Already heavily-compressed images, or PNGs with few colours, can grow. Lower the quality or switch format.
Is quality lost?
WebP and JPG are lossy — lower quality means a smaller file. The slider lets you find the balance.