How to use it
Choose a supported image.
Select the quality level that fits your use case.
Compare the measured size and download the new copy.
Re-encode JPG, PNG, and WebP images at a selected quality level locally in your browser and compare the measured result.
Get help with this toolQuality level is the main dial controlling an image's file size: higher keeps more detail, lower saves more space. Different destinations justify different settings — a portfolio page wants quality, a thumbnail wants bytes saved, and a messaging app just needs 'good enough'.
This tool re-encodes JPG, PNG, and WebP images in your browser at the quality level you select and shows the measured resulting size. Lower quality trades visible detail for size, and the tradeoff is irreversible — which is why the tool always produces a new copy and leaves your original alone.
Choose a supported image.
Select the quality level that fits your use case.
Compare the measured size and download the new copy.
Balancing quality and size before an upload
Creating a lighter copy of a heavy image
Direct control over the quality/size tradeoff with measured results.
A separate output file — the original is never overwritten.
Local processing, so images are not uploaded for re-encoding.
The quality mode re-encodes at a quality you choose; the compressor targets size reduction automatically.
Usually, but the measured result is shown so you can confirm before downloading.
No. The tool writes a separate re-encoded copy.