asantoolCompress an image to 20 KB
Bring a photo under 20 KB without leaving the page. Old forum avatars and a few strict government portals still cap uploads this low. The tool below opens already set to that limit — add your image and it finds the best quality that fits.
Drop an image here to compress it
JPG · PNG · WebP · GIF · BMPUp to 50 MB · Your files never leave your device4 steps, no waiting.
- 01Add your imageDrag a file onto the page or pick one from your device. On a phone this opens your camera roll directly.
- 02Confirm the targetThe tool is already set to 20 KB. Move the slider if you need a different limit, or pick one of the presets.
- 03Check the resultSwitch between before and after to see what you gave up. The file size shown is the real encoded size, not an estimate.
- 04DownloadSave the compressed file. Your original is untouched — nothing on your device is overwritten.
Common questions
Will a photo still look alright at 20 KB?
At full resolution, no — 20 KB is very little data for a photograph and you will see blocking. If the image is going to be displayed small, crop or resize it first; fewer pixels at decent quality nearly always looks better than every pixel at terrible quality.
How do I compress an image to 20 KB?
Add your image to the tool on this page. It is already set to a 20 KB target, so it will search for the highest quality that lands under that size and show you the result next to the original. Then download it.
Is my image uploaded anywhere?
No. The work happens in your browser using image APIs it already ships with, so the file never leaves your device. There is no upload to wait for and nothing stored on a server afterwards.