Compress Image to 100 KB
Make any JPG, PNG or WebP image smaller than 100 KB at the best quality that fits, without uploading it anywhere.
- Runs in your browser
- Up to 100 MB
- No signup
Drop an image to compress it under 100 KB
Supports JPG, PNG, and WebP
Choose fileWhy 100 KB?
100 KB is a common limit for signatures on entrance exam forms, for handwritten declarations, and for profile photos on job portals and school systems.
At 100 KB a cropped passport photo or signature normally keeps its full resolution; the tool only lowers JPEG quality until it fits. A full page scan may be resized a little, and the result shows the final pixel size so you can check it is still readable.
Forms that ask for 100 KB or less
- JEE Main and NEET UG signature: 10 to 100 KB, JPG
- IBPS handwritten declaration: 50 to 100 KB, 800 x 400 pixels preferred
- GATE photo: 5 to 600 KB, so 100 KB is a comfortable target
Rules change between notifications, so check the notice for your exam or application.
How the target size works
- The tool encodes your image at different JPEG qualities and keeps the highest one that stays under 100 KB, so you get the sharpest file the limit allows.
- If even a low quality is too big, it reduces the pixel size step by step until the file fits, and shows the final width and height.
- If your form also has a minimum, it can enlarge a very small image until the file is big enough.
- Everything happens in your browser. Nothing is uploaded, so it is safe for signatures and ID photos.
Questions about 100 KB images
Usually not. Check the preview at full size; if small text is soft, crop away the margins first so more of the 100 KB goes to the text.
Yes. The output is a JPG, which is much smaller for photos and scans. Transparent areas become white.
The tool counts 1 KB as 1000 bytes for the maximum, the stricter of the two readings, so the file is accepted whichever one the form uses.
No. The image is processed in your browser and stays on your device.