Compress an image to 20 KB
Aim at a hard 20 KB limit. The tool searches for the highest quality that still fits, and tells you the exact final size.
Your file is processed on your device and is never uploaded.
What this tool does
- Automatically finds the best quality that fits 20 KB
- Shows the original and final size side by side
- Reduces dimensions too, if quality alone is not enough
How to use compress image to 20kb
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Add your image
Drop in a JPG, PNG or WebP file.
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Let it find the setting
The tool tries repeatedly until it lands at or under 20 KB.
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Check and download
Compare against the original, then save.
Frequently asked questions
Why do I need an image under 20 KB?
20 KB is a tight limit typically imposed on signature and thumbnail uploads in government and banking forms, where the image is only ever displayed small.
Can any image be compressed to 20 KB?
A signature, logo or small headshot reaches 20 KB comfortably. A detailed photograph generally cannot without a visible drop in quality — the tool will reduce the dimensions as well as the quality to get there, and shows you the result so you can judge whether it is acceptable.
What will the result actually look like at 20 KB?
Signatures, logos and small headshots come out clean. A full photograph is reduced to roughly 500 pixels on the long edge, and fine detail like hair or foliage is what goes first. The preview shows you exactly what you are getting before you download.
How does it hit the target?
It repeatedly re-encodes the image, adjusting quality by binary search until it finds the highest setting that still fits. If quality alone cannot get there, it progressively reduces the pixel dimensions as well. The whole search runs on your device, typically in under a second.
Which format gives the smallest file?
PNG for a signature or line drawing, JPG for photographs. WebP is smaller than both, but many government and banking forms still reject it, so check what the form accepts before choosing it.