Compress Image
Reduce JPG and PNG file size with adjustable quality. No upload required.
Runs locally — nothing is uploaded
How to use
- 1
Upload an image
Select a JPG or PNG file from your device. The original file size is shown so you can compare results.
- 2
Adjust the quality
Use the quality slider to balance file size and visual quality. Lower values produce smaller files with more compression.
- 3
Download the compressed image
Preview the new file size, then click Download to save the optimized image. Processing is done locally in your browser.
Frequently Asked Questions
JPEG and PNG only. Transparent PNGs stay PNG; opaque PNGs can optionally convert to JPEG for smaller files.
It depends on the photo. Use the quality slider (10–100, default 80) — high-resolution photos often shrink a lot around 70–80%, while already-compressed images may gain less.
No. Compression runs in your browser and the download stays on your device — nothing is uploaded.
No. Width and height stay the same; only file size/quality change. If the result is not smaller, the tool offers the original as already optimized. Use Image Resizer to change dimensions.
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