Compress Image to 20 KB
Free online tool to reduce a photo to under 20 KB — ideal for government forms, exam portals and visa applications that set a strict file-size limit.
How it works
- Choose or drop your photo (JPG, PNG or WebP).
- The tool searches for the highest JPEG quality that still fits within 20 KB. To be safe with every upload portal it counts 1 KB as 1000 bytes and stays 2% below the limit: at most 19,600 bytes.
- If needed it also reduces the pixel dimensions.
- Download your compressed JPG.
Tips for a small file size
- Crop out empty background before compressing — fewer pixels means a smaller file.
- Photos with a plain background compress much better than busy scenes.
- Check the portal's minimum pixel dimensions so you don't shrink the picture too far.
Frequently asked questions
How do I compress an image to 20 KB?
Upload your photo, and the tool automatically finds the best JPEG quality (and shrinks the dimensions if needed) so the file ends up at or under 20 KB. Then download the result.
Is my photo uploaded to a server?
No. Compression runs entirely inside your browser, so your photo never leaves your device.
Why is my image larger than 20 KB after compressing?
Very large or highly detailed photos may need more reduction than quality alone can give. The tool then reduces the pixel dimensions as well; if it still cannot reach 20 KB it tells you.
Is it free?
Yes, image compression is completely free with no watermark and no sign-up.