How do I compress a photo to exactly 20 KB?

Upload the photo above, leave the target at 20 KB, and click Compress. The tool adjusts quality and, if needed, resolution until the file is just under 20 KB, then lets you download it — nothing is uploaded to a server.

Is this tool free and safe to use?

Yes. It's free, requires no account, and runs entirely in your browser using your device's own processing — your image is never sent anywhere.

Which exams use a 20 KB photo limit?

No single major exam uses exactly 20 KB as its only limit, but it's a useful size when a form's stated range falls between the more common tiers — always check your own notification's exact number.

FormFitExact-KB image tool

Runs in your browser — nothing is uploaded

Compress Photo to Exactly 20 KB

Upload your photo, and this tool will get it just under 20 KB — fit for upload, free, and without sending your file anywhere.

Drop a photo or signature here, or choose a file

Image type

Your exam or form

Custom target: 20 KB

Output settings

Target size

Format

How exact-KB compression works

This adjusts JPG/WEBP quality and, if needed, slightly reduces pixel dimensions until the file lands just under your target — typically with a small safety margin so a strict portal doesn't reject it for being a byte over. The compression runs on a background thread when your browser supports it, so the page stays responsive even on a large photo. Your file is never sent to a server — everything happens on your device.

When you need a 20 KB photo

The strictest tier in common use — mostly for signatures, but a small number of exams also cap the photo here. There's very little room for detail at this size, so the source image matters more than the compression.

Start with a small, well-lit photo on a plain background. A close, simple original compresses far better than a busy or shadowed one.

Frequently asked

How do I compress a photo to exactly 20 KB?: Upload the photo above, leave the target at 20 KB, and click Compress. The tool adjusts quality and, if needed, resolution until the file is just under 20 KB, then lets you download it — nothing is uploaded to a server.
Is this tool free and safe to use?: Yes. It's free, requires no account, and runs entirely in your browser using your device's own processing — your image is never sent anywhere.
Which exams use a 20 KB photo limit?: No single major exam uses exactly 20 KB as its only limit, but it's a useful size when a form's stated range falls between the more common tiers — always check your own notification's exact number.