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Compress an image

Make photos smaller for email, forms and websites. Say the size you need, Dozo keeps the sharpest version under it.

Your files never leave your device. Everything happens in this browser tab. Nothing is uploaded, and closing the tab erases it.

How it works

  1. Drop your images, or choose them. Change the size limit if you need another one.
  2. Each one is compressed right away, on your device, and you see its new size.
  3. Download them one by one, or all together as a ZIP.

Questions

Are my images uploaded anywhere?

No. The conversion runs inside your browser, on your device, so nothing leaves it: you can check by turning off Wi-Fi once the page has loaded.

How many can I convert at once?

There is no limit on the number of files and no daily limit. They convert one at a time on your own device, so a big batch takes longer on an old phone.

How does it reach an exact size?

It tries several JPG qualities and keeps the best one under your limit. If even low quality is too big, it makes the picture smaller, a little at a time. You always see the final size and the pixels.

What comes out?

A JPG, the format that shrinks photos best. Transparent parts turn white.

Does it keep the location and camera details?

No. The new file holds only the picture: the location, date and camera details stay behind in the original. Handy before you share it, and worth knowing if you sort photos by date.

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