How to compress an image to 20 KB
- Choose your image.
- Keep 20 in “Max size”.
- Click “Compress to 20 KB”.
- Download your image.
About the 20 KB limit
Some exam and job applications limit photo uploads to 20 KB. Instead of trying different quality settings by hand, Vertozi tests them for you and keeps the sharpest version under 20 KB.
If the image is very large, its dimensions are reduced step by step until it fits.
Tips for better results
- Crop or resize large photos first to keep more detail.
- Choose JPG or WEBP as the output format. They reach small sizes with better quality than PNG.
- Photos with fewer details (like plain backgrounds) compress better.
Frequently asked questions
Will my image always be under 20 KB?
In almost every case. Very large or detailed images may need to be resized to fit, which Vertozi does automatically.
Does it change the image dimensions?
Only when quality changes alone aren’t enough to reach the size.
Can I choose a different size?
Yes. Type any value in “Max size”.
Is Vertozi really free?
Yes. There is no subscription, no premium plan and no sign-up. The site is funded by ads.
Are my files uploaded?
No. This tool runs in your browser, so your files never leave your device.