Compress image to 20 KB
Get any photo under 20 KB without guessing quality settings. Drop it in, and the tool finds the best version that fits, right on your device.
When you need 20 KB
- Signature and thumbnail uploads on exam and job portals
- Passport-style photos where the form caps files at 20 KB
- Avatars and forum profile pictures
What to expect
At 20 KB a full-resolution phone photo can’t keep its pixel dimensions. The tool shrinks the width until quality stays above the floor, so expect something around 400–600 px wide for a photo. Signatures and scans on white compress far better than photos.
Questions
How do I compress a photo to 20 KB?
Add the image above; the target is already set to 20 KB. The tool finds the highest JPEG quality that fits under 20480 bytes, shrinking the width only if needed, then you save the file.
Why is my image under 20 KB but smaller than expected?
The search steps in quality increments and always stays under the limit, so the result is usually a little below the target. That leaves margin for forms that count KB as 1,000 bytes.
My form also requires exact pixel dimensions. What do I do?
Enter the required width and height as max width and max height before adding the image. The tool resizes first and then fits the size target, which gives better quality than letting it shrink on its own.
Is my photo uploaded?
No. The compression runs in your browser with WebAssembly; the file stays on your device. That matters for ID photos and signatures.