Compress Image to 20KB

How to compress an image to 20KB

1. Drop your image on the box above, or click to choose it.
2. The tool works down to 20 KB or less on its own.
3. Check the result and the final size.
4. Press Download to save it.

Why 20KB is a tough target

20 KB is one of the smallest limits you will meet. Some exam and job application forms set it for a signature or a thumb impression, and a few set it for the photo itself. At this size there is not much room for detail, so the tool lowers the quality and, if needed, makes the image smaller in pixels to fit. The result is meant to pass a strict form, not to look perfect on a big screen.

How the tool reaches the target

It first lowers the JPEG quality step by step, checking the size each time. If even the lowest quality is still over 20 KB, it starts reducing the width and height as well, since a smaller picture holds less data. It stops as soon as the file is 20 KB or under and shows you the final size, so you always know what you are getting.

Best input for a tiny target

A signature or a simple photo on a plain background compresses best, because there is less detail to store. A busy photo with lots of texture is harder to squeeze this small. If the tool warns it could not reach 20 KB without going too small, try cropping tightly to just the part you need first.

FAQ

Why does my photo look rough at 20KB?

There is very little data at this size, so fine detail is lost. That is expected. The goal is to pass a form's limit, not to keep full quality.

What is a 20KB limit usually for?

Often a signature, a thumb impression, or a small photo on an exam or job portal. Check whether your form wants the photo or the signature at this size.

The tool could not reach 20KB. What now?

Crop the image to just the part you need, then try again. Less area means a smaller file.

Does it change the pixel size?

Only if it must. It lowers quality first, and shrinks the dimensions only when quality alone cannot reach 20 KB.

Are my files uploaded?

No. All of it runs in your browser and nothing is saved.

Why would a form want an image under 20 KB?

Strict portals, often for signatures and thumb prints, set caps this low. To reduce an image to 20 KB, the tool lowers quality first and then shrinks the width and height if it has to. A 20 KB photo still reads clearly at small sizes, which is what these forms display.