Compress Image to 100KB
There's no single button that lands on exactly 100 KB, but two settings get you there: quality and pixel size. This page saves as JPG; lower the quality slider, compress, and check the size on the result. If you still need to reduce image size to 100KB or less, shrink the dimensions with Resize image and compress again.
Runs in your browser
How to get a photo under 100 KB
- 1Select your photo. JPG, PNG, WebP and other common formats work.
- 2Keep the format on JPG, as preset, and drag the quality slider down from 75% to around 60%.
- 3Press Compress image and read the new size on the result card.
- 4Still over 100 KB? Start over with a lower quality (down to 30%), or resize the photo to about 1000 pixels wide with Resize image, then compress it again.
- 5When the size shown is under 100 KB, download the image.
Good to know
- Pixel size matters more than quality. A 4000-pixel phone photo rarely gets under 100 KB, while the same photo at 1000 pixels wide usually does at decent quality.
- Forms that ask for a photo or signature under 100 KB often set pixel dimensions too. Resize to those first.
- JPG has no transparency, so transparent areas turn white.
- The tool never returns a file bigger than the original, so an already small image may come back unchanged.
Frequently asked questions
Why didn't my image get under 100 KB?
At large pixel sizes, even low quality can't make the file that small. Resize the image to fewer pixels first, then compress it again.
Will a 100 KB photo look bad?
For a photo about 1000 pixels wide, a JPG under 100 KB usually looks fine on screen. Zoom in on faces and text to check before uploading.
Is my photo uploaded?
No. Compression runs in your browser and the photo stays on your device. You can use it free 3 times a day without signing up.