Compress image
Compress an image locally and compare its original and resulting byte sizes before downloading. Choose JPG or WebP for the most useful quality control.
Local processing
Result
Your result will appear here
The input stays available if you need to adjust a setting.
How to use compress image
- 1
Choose an image.
- 2
Select the output format and quality.
- 3
Compare the size change, then download.
A realistic example
Compress a 4.8 MB product photo to WebP at 78% quality and inspect the result before saving it.
Supported formats and limits
Input: JPG, PNG, WebP. Output: JPG, PNG, or WebP.
- PNG export is lossless, so the quality slider has little effect.
- Already optimized images may become larger after re-encoding.
Questions people ask
Which format usually creates the smallest file?
WebP commonly balances size and quality well, but the best result depends on the image.
Will compression change the dimensions?
No. This tool preserves the source width and height.