Image Compressor

How it works

1. The image is decoded in your browser and, if it's larger than 4096px on a side, scaled down first to keep processing fast.
2. It's then re-encoded at the quality level you choose — a lower quality drops more visual detail in exchange for a smaller file.
3. The compression runs in a background web worker so the page doesn't freeze while it works, even on larger photos.
4. You get a before-and-after file size comparison before downloading, so you can judge whether the savings are worth the quality trade-off.