Shrink a photo or signature down to just 10KB for the strictest upload limits — free, private, and right in your browser.
10KB is tiny — plan accordingly
10KB is one of the smallest limits you'll encounter, usually reserved for signatures or thumbnail-sized photos. A full-resolution photo can't stay sharp at 10KB, so the key is starting with a small, tightly-cropped image.
Compress to 10KB
Upload your image below. The tool lowers quality and, if needed, dimensions to fit under 10KB, then gives you the best-looking result it can at that size.
Try it now
Compress Image to 10KB
How to keep a 10KB image readable
- Crop as tightly as possible before compressing.
- Reduce the dimensions first — a 200px-wide image looks far better at 10KB than a 2000px one.
- Use high-contrast, plain backgrounds so detail survives compression.
For signatures specifically, the dedicated signature resizer lets you set exact dimensions and a 10KB target together.