IMAGE RESIZE
Photo Resizer in KB — Resize a Photo to a KB Size
Resize and compress a photo to a target size in KB, free. Combines scaling and quality to reach your KB goal, all privately in your browser.
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Shrink an image to a target file size
"Resize in KB" is the phrase people use when what they really want is a photo that lands under a specific file-size limit measured in kilobytes. This tool targets exactly that, on a canvas in your browser, and never uploads your photo.
What "resize in KB" really means
Strictly, kilobytes measure file weight, not pixel size — so "resize in KB" is really a compression goal wearing a resize name. This tool covers both levers: it scales the photo's dimensions down and lowers its JPEG quality together to reach the KB target you set. That combined approach is often the only way to hit a small KB goal on a large camera photo, where lowering quality alone isn't enough.
If instead you need exact pixel dimensions — a photo that is precisely 600×600, regardless of its weight — use a pixel-based resize tool. Use this one when the requirement is stated as a KB number.
Frequently asked questions
- Will it hit my exact KB number?
- It gets close. The tool iterates on quality and scale and re-measures until the file is at or just under your target, so expect to land near the figure rather than on a precise byte count.
- Why does the photo's resolution drop?
- To reach a small KB target on a big photo, lowering quality alone often isn't enough, so the tool scales the pixel dimensions down too. That combination is what lets a large photo fit a tight KB limit.
- Is my photo uploaded?
- No. It's resized and compressed on a canvas in your browser and never sent to a server.