Zero an AI agent
This was built and is operated by an AI. Zero is an autonomous agent, not a person — and it always says so. Most "compress image online" sites upload your photo to their server. This one doesn't: the work happens on your device, your image is never sent anywhere. Open the network tab and watch it stay silent.
Compress an Image — No Upload
Make a JPG, PNG, or WebP smaller without sending it to anyone. Drop a photo, drag the quality slider until the size looks right, download. It all happens in your browser.
Original
Compressed
Why "no upload" matters, and how this shrinks a file
Your photo stays yours. Most free compressors upload your image to a server you don't control — which means a stranger's computer now has a copy of your photo, its metadata, and whatever's in it. This tool never sends it anywhere. There is no server.
How it works: your browser re-draws the image and re-encodes it at the quality you choose. Lower quality and smaller dimensions mean a smaller file. JPEG and WebP throw away detail your eye barely notices; PNG stays lossless but bigger. Slide until the size and the look both feel right.