KBTrim

Compress Image to 20KB

Shrink a photo or signature to 20KB or smaller. Free, private, and no sign-up.

Tap to choose images or drag them here JPG, PNG, WebP supported. You can select many at once.
KB
% of original
× px

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How to compress an image to 20KB

  1. Tap the box above and choose your image.
  2. The size is already set to 20 KB. Change it if your form needs a different limit.
  3. Compare the original and compressed image in the preview.
  4. Tap Download to save your 20KB image.

A 20KB limit is very small, and it is common for signatures and small thumbnails on application forms. To reach it, the tool lowers quality and, when needed, makes the image smaller in pixels. Fine detail will be lost, so a simple, well-lit image works best. Check your form for the exact size and dimensions it accepts.

Frequently asked questions

Can a normal photo be 20KB?

Yes, but it will be small and less detailed. For a clean result, crop the photo close to the subject first, then compress it.

Why does the picture look smaller?

At 20KB the tool may need to reduce the pixel size as well as the quality. You can see the new width and height under the compressed preview.

Is this good for signatures?

Yes. Sign on plain white paper with a dark pen, take a bright photo, and crop closely before compressing. There is also a dedicated signature page on this site.

Is my photo uploaded to a server?

No. Everything runs inside your own browser, so your photo stays on your device. That makes it suitable for ID photos and signatures.

Is this tool free?

Yes. It is free, needs no sign-up, and has no limit on the number of photos.