Compress Image to 20KB
Shrink a photo toward 20KB for forums, email forms and portals with very strict file-size limits.
from your phone or computer, or drop a file here
No image loaded yet.
The size comparison appears under the preview after compression.
Original
Result
How to compress an image to 20KB
- Choose an image, or drag and drop it above.
- Click Compress to under 20KB. The tool lowers quality step by step, then shrinks the dimensions, until the file fits under 20KB — or reaches the closest size it can.
- Compare the before and after sizes, check the preview looks readable, then tap Download to save it.
Why 20KB is hard — honestly
20KB is a very small file for a photo. A plain, simple image at a small size can reach 20KB and still look fine, but a busy, detailed photo usually cannot stay sharp at that size. If your result lands over 20KB, crop the image to the subject first, or resize it smaller, then compress again — smaller dimensions save far more than quality alone. If the photo is already under 20KB, the tool returns your original file untouched instead of re-encoding it larger.
Frequently asked questions
Will my photo stay sharp at 20KB?
Simple images usually do. Detailed photos, text and faces lose visible sharpness at 20KB — that is the trade-off of the size limit, not a defect in the tool. For larger limits, use Compress to 50KB or the Image Compressor.
What if the result is still over 20KB?
The tool shows the closest size it could reach. Crop with the Image Cropper, shrink with the Image Resizer, then compress again.
Is my image uploaded?
No. Compression runs on your device, in your browser. See the guide to compressing images to 20KB for forums and email for the manual steps behind this tool.