Compress image to 300 KB
Make a photo smaller in KB, under any form's limit. Nothing is uploaded.
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 300 KB
| Picture | As JPG | As WebP |
|---|---|---|
| A detailed camera photo, 3:2 | about 1920 by 1280 px | about 2360 by 1570 px |
| A head-and-shoulders portrait, 3:4 | about 2160 by 2880 px | the whole photo |
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 300 KB is asked for
- University admission and scholarship forms with a 300 KB photo limit.
- Product and listing photos on shops and classified sites.
- Website images that should load fast on phones.
Tips for 300 KB
- 300 KB is generous: most portraits fit at full size, so check the form doesn't also ask for a pixel size.
- For a website, about 1,920 pixels wide is plenty for a full-width picture, and it fits in 300 KB.
- WebP fits even more, if the site or form accepts it.
- Check the face and any text in the Result before you download.
Frequently asked questions
How do I resize or compress an image to 300 KB?
Choose your image and press Compress: on this page the size is already set to 300 KB. Then download the smaller file.
Will the file be exactly 300 KB?
As close as it can get without going over. ChobiKit tries different qualities and keeps the best one that stays under 300 KB, so the file may come out a little smaller.
Is 300 KB counted as 300,000 or 307,200 bytes?
Forms differ, so ChobiKit keeps the file under 300,000 bytes, which passes either way.
Will my photo lose quality at 300 KB?
Hardly. A head-and-shoulders portrait of about 2,160 by 2,880 pixels fits at good quality, and a camera photo at about 1,920 by 1,280, Full HD width. Compare Original and Result before you download.
Why won't my image get under 300 KB?
It has too many pixels for 300 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.