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Shrink JPG, PNG and WebP images with a quality slider and live size comparison.
About the Image Compressor
The Image Compressor re-encodes your picture at the quality, maximum width and output format you choose, then shows the compressed file size next to the original so you can see exactly how much you saved before downloading. Smaller images load faster on websites, fit inside email and upload limits, and take up less storage — and because everything runs on your device, your photos are never uploaded.
How to use it
- Choose an image or drop it onto the box (JPG, PNG or WebP).
- Set the quality, and optionally a maximum width and output format.
- Compare the original and compressed sizes and check the preview.
- Download the compressed image — or Remove it and try different settings.
Frequently asked questions
Are my images uploaded to a server?
No. Compression runs entirely on your device inside the browser. Your image never leaves your phone or computer, which also makes it fast.
What quality setting should I use?
Around 80% is a good default for photos — a much smaller file with little visible difference. Go lower for thumbnails and previews, higher when fine detail matters.
Can I shrink an image's dimensions as well?
Yes. The Max width option scales large photos down to 1920, 1280 or 800 pixels wide, which is often where the biggest file-size savings come from.
Which output format makes the smallest file?
JPEG is usually smallest for photos, WebP is smaller still in browsers that support it, and PNG is best kept for graphics that need transparency or perfectly sharp edges.