How to use the Compress Image to 20KB
- Add your photo or signature (JPG, PNG, WebP or iPhone HEIC).
- “Max file size” is already set to 20 KB. Adjust the width if your form asks for exact pixels.
- Press “Apply” – the tool finds the highest quality that stays under the limit.
- Check that the result is below 20 KB and download the JPG.
When you need an image under 20 KB
- Scanned signatures for government job, exam and admission forms
- Small passport-size photos for exam portals that allow only 10–20 KB
- Thumbnail images for older systems with strict upload limits
Tips for a clear photo at 20 KB
20 KB is very small. Keep the width at about 300–400 pixels; a signature can go even smaller (200–300 pixels wide). Photos with plain backgrounds compress far better than busy ones.
How the compressor reaches the exact size
The tool encodes the image several times at different quality levels and keeps the best one that is 20 KB or smaller, so you don’t have to guess. If 20 KB cannot be reached at the chosen width, it tells you; lowering the width solves it.
JPG is used because almost every upload form accepts it. Your photo is processed in your browser and is never uploaded to a server.
Frequently asked questions
How do I compress an image to 20 KB?
Add your image above, keep “Max file size” at 20 and press “Apply”. Download the JPG once the size shows 20 KB or less.
Why does my photo look blurry at 20 KB?
20 KB is a tight limit, so the image needs fewer pixels and stronger compression. Reduce the width to around 300–400 px rather than lowering quality further; smaller but sharper usually looks better than large and blocky.
Can I do this on my phone?
Yes. The page works in Chrome and Safari on Android and iPhone; pick the photo from your gallery and download the result.
Is it free?
Yes. There is no signup, no watermark and no limit on how many images you compress.