Photos
Compress an image to 100KB
This page starts the image compressor at 100 KB. Use it when the portal allows a little more room and you want a sharper face, document text or signature than a 20 KB or 50 KB target gives you.
Your files stay on your device. The site uses analytics and ads.
JPG, PNG or WebP output. AVIF input is decoded when your browser supports it.
Your compressed images and the comparison slider will appear here.
What a 100KB image gives you
A 100 KB allowance leaves more detail than 20 KB or 50 KB. It is a practical choice for a profile photo, a form attachment or an on-screen document when the portal permits that size.
The file is still compressed. JPG and WebP reduce quality to approach the target, so inspect the result rather than assuming it is unchanged.
Formats and settings for 100KB
JPG is the safest choice for older portals and most upload forms. WebP is usually smaller and is a good option when the form names it, but some sites reject it even though browsers display it.
Use a dimension preset only when the form asks for a specific frame. Otherwise keep the original aspect ratio and let the encoder lower the file size without cropping the image.
Check quality at 100%
Look at the eyes, hair, small text and fine lines at full size. If those details matter, compare the result with the original and keep the target higher when the form allows it.
- Confirm the downloaded file is under 100 KB.
- Check that the portal accepts JPG or WebP.
- Keep the original file for future use.
If you need to go below 100KB
Try the 50 KB page for a middle ground, or 20 KB for the strictest forms. Lower targets reduce detail, so change the target only when the portal requires it, not simply to make the file smaller.
Other KB targets
How it works
- Step 1
Add the original image
A sharp original keeps more detail after re-encoding. Avoid starting from a screenshot of a compressed photo.
- Step 2
Keep the 100KB target
The preset is 100 KB. JPG is the compatible default; WebP is an option when the form accepts it.
- Step 3
Inspect the result
Check the face, small text and fine lines at 100% before downloading.
- Step 4
Confirm the portal rule
Make sure 100 KB is within the portal limit and that the accepted format matches your download.
Frequently asked questions
What is a 100KB image useful for?
A 100 KB allowance gives a photo or scanned page more detail than 20 KB or 50 KB. It suits profile photos, form attachments and on-screen documents when the portal permits that size.
Is a 100KB image lossless?
No. JPG and WebP are re-encoded at a lower quality to approach the target. The comparison slider shows the difference; keep the target higher if the form allows it.
Should I use a preset or the original aspect ratio?
Use the original aspect ratio unless the form asks for a specific crop. Presets crop to a fixed frame and can remove part of a face or document. The photo resizer tool is better for exact pixel sizes.
Why not upload the original photo?
A portal may reject a large file or take longer to accept it. Compressing also re-encodes the image, which drops EXIF data such as GPS location. Keep the original file if you may need it later.