How to compress an image to 100KB
- Select Choose files, or drop a JPG, PNG or WebP image on the box.
- The tool aims for under 100KB on its own. It tests up to eight quality levels and keeps the sharpest result that fits.
- If quality alone cannot reach 100KB, it shrinks the image in small steps until it does.
- Select Download. The result is named with
-compressedso your original stays untouched.
When you need 100KB
A 100 KB limit is the most common one: email signatures, profile photos, application forms, content management systems and many exam portals. It is large enough to keep a normal passport-sized or web-sized photo looking clean.
What the tool does to your image
JPG and WebP files are re-saved at a lower quality, starting at 95 percent and going down to 40 percent if needed. PNG files cannot be compressed by quality alone, so they are saved as WebP, which keeps transparency and is usually much smaller. If an image is still too large at the lowest quality, its width and height are reduced by 15 percent at a time, and you can see the final pixel size in the result row.
The page shows the size before and after, so you can check that the file is under 100KB. Very small images that are already under 100KB are still re-saved at high quality, which is usually a little smaller.
Tips
- Photos taken on a phone are often 3 to 6 MB, so the tool may reduce their pixel size as well as their quality.
- Keep the file as JPG when a form says “JPG only”. Choose JPG in the full image compressor if your source is a PNG.
- Need it even smaller? See compress to 50KB.
- For more control, use the full image compressor.
- To change dimensions first, try the image resizer.
Your images stay on your device. Nothing is uploaded, and there is no sign-up.