How to reduce an image to 100 KB
Many online application forms accept photos only below a size such as 100 KB or 50 KB. Type the size you need and the tool finds the best quality that fits.
Open Compress Image: free, no uploadStep by step
- Open the Compress Image to 100 KB tool and choose your photo.
- Check Target size (KB). It is already set to 100. Change it to 20, 50 or 200 if your form asks for a different size.
- Press Start. The tool tries different quality levels and keeps the sharpest version that stays under your target.
- Check the size shown next to the result, then press Download.
How the tool reaches your size
The tool first lowers the JPG quality step by step. If even the lowest quality is still too big, it also makes the picture smaller in pixels, a little at a time, until the file fits. The result is at or just below your target, not always exactly equal to it.
Large phone photos are often 4000 pixels wide, so they usually need to be made smaller to reach 20 or 50 KB.
Read the form's rules first
Forms often ask for an exact format (JPG), a size range (such as between 20 KB and 100 KB), and sometimes exact dimensions. If a form needs exact pixels, use the Resize Image tool first and then compress.
Tips
- JPG is usually the smallest format for photos. A PNG is converted to JPG when you set a target size.
- If a signature image needs to be tiny, crop out the empty space first.
- Keep the original photo. You may need it again with different limits.
- A very small target such as 20 KB on a big photo will look softer. That is normal.
Questions
Which format should I use for forms?
JPG is accepted almost everywhere. Use the format the form specifies.
Why is the file a bit below my target?
The tool keeps the best quality that stays at or below your target size, so the file is rarely exactly equal to it.
Is my photo uploaded?
No. The image is compressed in your browser and stays on your device.