Resize Image to 100KB

Set a 100 KB ceiling and add an image; the page re-encodes it in your browser and keeps stepping quality and dimensions down until the file fits inside 100 KB. Because both are search variables, detail is preserved for as long as the budget allows instead of being thrown away at a fixed setting.

Upload an image to bring under 100 KB
or click the button below to browse · paste an image with Ctrl+V

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Resize to 100 KB

KB
100 KB
85%
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Add this image resizer to a related page with a visible ResizeOn source link.

Frequently Asked Questions About Resize Image to 100KB

Does a CV photo at 100 KB have to be square?

No. The 100 KB budget is about bytes, not shape, so keep the proportions the application displays. A 3:4 headshot reads better in a résumé header than a square crop that cuts the top of the head off.

Why is the result still not exactly 100 KB?

Encoders trade quality against bytes, so the output lands at or just under the 100 KB target rather than on it to the byte. Tighten or loosen the setting and run again until the size fits.

How much of the 100 KB budget goes to dimensions and how much to quality?

The page tries the largest clean frame that still fits first, then lowers quality only when size alone cannot reach 100 KB. Check the reported output size before you publish.

Will my original file be changed?

The result is downloaded as a separate file. Keep your original until you have checked the image at or under 100 KB.

What should I check before using the result?

Open the image at or under 100 KB in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.

About this workflow

When 100 KB is the real limit

Recruiter CV portals, college application systems and inline email images are the usual 100 KB requests, and what sits behind them is normally a document page or a single headshot. A page of text compresses well, so this budget is often reached by dimension changes alone; a busy photograph needs quality lowered as well.

Before downloading the result

Open the image at or under 100 KB next to the original at full size and check text edges, faces, and flat backgrounds; re-encoding softens detail long before it looks wrong in a thumbnail.