Runs on your device

Compress to 500 KB without uploading anything

Drop your images and each one comes back at or below 500 KB, at the best quality that fits. Nothing is sent anywhere unless you ask for it.

Drop images here

Or click to choose them. Several at once is fine, and you can drop more later.

How the size is hit

An encoder takes a quality and answers with a size, never the other way round. So the page tries a quality, looks at the result and halves what is left to search, about nine times per image. Each row says which quality it settled on.

When quality is not enough

A large photo pushed towards a small target runs out of quality before it runs out of pixels. Below 30% the search stops lowering quality and starts shrinking the picture instead, which looks better at the same size. A row that still could not get there says so rather than pretending.

Where 500 KB is the limit

Enough for a full-screen photo that still sends quickly by email or messenger, and a frequent cap on forums and in support ticket systems.

For the best result

Almost any photo fits into 500 KB at full HD without visible loss, so this target rarely has to shrink anything.

Questions people ask

Can I compress several photos to 500 KB at once?

Yes. Drop them all, each one is compressed on its own and they download together as a .zip.

Will a picture already under 500 KB get worse?

No. A file that is already small enough is kept exactly as it was, since encoding it again could only make it worse or bigger.

Are my images uploaded to compress them?

No. Every attempt at the target size is encoded by your own browser, so the picture never leaves your device.

How does it hit the exact size?

An encoder takes a quality and answers with a size, never the other way round. The page tries a quality, looks at the result and halves what is left to search, about nine times per image.

What if the target is too small for the picture?

Below 30% quality the search stops lowering quality and shrinks the picture instead, which looks better at the same size. A result that still cannot get there says so.