Compress image to 20 KB
Make a photo smaller in KB, under any form's limit. Nothing is uploaded.
JPG, PNG, WebP, HEIC or AVIF, up to 20 MB. You can choose up to 10 images at once.
Your image stays on your device.
How to use it
Choose one or more images.
Pick a quality, or type the size you need in KB.
Download the smaller file.
What fits in 20 KB
| Picture | As JPG | As WebP |
|---|---|---|
| A detailed camera photo, 3:2 | about 500 by 330 px | about 650 by 430 px |
| A head-and-shoulders portrait, 3:4 | about 360 by 480 px | about 550 by 740 px |
Measured at good quality (80 %) on two real photos. Plain backgrounds, signatures and drawings fit far more pixels; busy pictures, such as leaves or crowds, fewer.
When 20 KB is asked for
- Photos and signatures on online forms with small limits.
- Profile pictures for chat apps and forums.
- Many photos in one email, each kept small.
Tips for 20 KB
- Resize to the pixel size your form asks for first: fewer pixels leave more KB for detail.
- A plain background behind the face saves a lot of space.
- Start from the original photo, not a screenshot or a copy that was already compressed.
- Compare Original and Result before you download, and look closely at the eyes and text.
Frequently asked questions
How do I compress an image to 20 KB?
Choose your image and press Compress: on this page the size is already set to 20 KB. Then download the smaller file.
Will the file be exactly 20 KB?
As close as it can get without going over. ChobiKit tries different qualities and keeps the best one that stays under 20 KB, so the file may come out a little smaller.
Is 20 KB counted as 20,000 or 20,480 bytes?
Forms differ, so ChobiKit keeps the file under 20,000 bytes, which passes either way.
Is 20 KB enough for a small ID photo?
Usually, yes: a head-and-shoulders photo of about 360 by 480 pixels stays clear at 20 KB. If your form gives a pixel size, resize the photo to it first, then compress.
Why won't my image get under 20 KB?
It has too many pixels for 20 KB even at the lowest quality. ChobiKit then offers to make it smaller in pixels and tries again. Cropping away what you don't need helps too.
Is my image uploaded?
No. It is compressed in your browser and never sent to a server. It is free, with no sign-up and no watermark.