Getting a photo under 20 KB without making it blurry
Signatures compress very well because they are mostly white. Turn on "Clean signature" for crisp ink on pure white paper.
The tool works in two steps. First it searches for the highest JPEG quality that fits under 20 KB. Only if that is not enough does it reduce the pixel size, a little at a time. You see the final size in KB and bytes before you download.
Other sizes
10 KB · 30 KB · 50 KB · 100 KB · 200 KB · 500 KB · custom KB size
How to use the Compress Image to 20 KB tool
- Choose or drop your image (JPG, PNG, WebP or HEIC).
- The Under 20 KB preset is pre-selected. Add a minimum size or pixel size if your portal needs it.
- Wait a second for the result and check the ✓ badge.
- Press Download.
Why SaralKit?
- Free forever: no "credits", no trial, no premium tier, no watermark and no daily limit.
- No account, ever: nothing to sign up for. Just open the page and use it.
- No data stored: your files and the numbers you type are processed by your own browser. We never upload, store or see them.
- Works offline: once the page has loaded, most tools keep working without internet.
- Open source: anyone can read the code on GitHub.
Frequently asked questions
How do I compress a JPG to 20 KB?
Choose your image above. The "Under 20 KB" preset is already selected, so the tool immediately finds the best quality under 20 KB. Then press Download.
Can I compress to exactly 20 KB?
You can get just under 20 KB. If your form needs a range, for example 8–20 KB, type the lower number in Min KB too.
What is 20 KB used for?
Common uses: SSC and IBPS signatures (10–20 KB), scholarship portals and many state PSC forms.
Is it free and private?
Yes. No sign-up, no watermark, and the photo never leaves your device.