Compress Image to 20KB
Reduce a photo to under 20KB for online forms, exam applications, ID uploads and profile pictures. The tool automatically finds the best quality and size that fits.
How to compress an image to 20KB
- Add your photo. Drop a JPG, PNG or WebP image into the box, or click to choose one. You can add several images at once.
- Keep 20 KB selected or choose another target such as 10 KB, 30 KB, 50 KB or a custom size.
- Wait a second. The tool tries different quality levels and, only if needed, smaller dimensions until the file fits under the target.
- Download. Check the before and after sizes and download your compressed image.
How the 20KB compression works
The tool first searches for the highest JPEG or WebP quality that keeps the file under your limit. If the photo is still too large at a low quality, it gently reduces the width and height and searches again. This keeps the image as sharp as possible for the size. The result is always at or below the target. Sizes use 1 KB = 1024 bytes, which is how most upload forms and operating systems count, so 20 KB means 20,480 bytes or less.
Tips for small file sizes
- Crop away empty background first with the Image Cropper. Fewer pixels means better quality at 20 KB.
- Passport photos and signatures look best at around 200 to 400 pixels wide.
- For a signature on white paper, tick "black & white" for crisp lines at very small sizes.
- WebP gives about 25% smaller files, but some government and exam portals only accept JPG.
Frequently asked questions
How can I reduce my photo size to 20KB?
Upload the photo above with the 20 KB target selected. The tool compresses it automatically, and you can download the result as a JPG under 20 KB.
Will my image lose quality?
Some quality loss is unavoidable at 20 KB, but the tool always keeps the highest quality and largest size that fit, so faces and text stay as clear as possible.
Can I compress PNG to 20KB?
Yes. PNG images are converted to JPG or WebP, which are far smaller for photos. Transparent areas are filled with white.
Are my photos uploaded?
No. Compression happens in your browser, so your photos never leave your device.
Can I compress to 10KB, 50KB or 100KB?
Yes. Choose a preset or type any custom target in KB.