Resize in KB

Government forms, job applications, and online portals often require photos under a strict file size — for example 100 KB or 50 KB. Adjusting dimensions and re-compressing by trial and error is slow. RelahConvert lets you specify the exact

How to Resize an Image to a Target KB Size in Three Steps

  1. Select your image — click "Select Image" or drag and drop a JPG, PNG, or WebP file.
  2. Enter your target size — type the KB you need (for example 50, 100, or 200 KB).
  3. Download — save the resized image at or just under your target size.

The Best Free Tool to Resize an Image to an Exact KB Size

Government forms, job applications, and online portals often require photos under a strict file size — for example 100 KB or 50 KB. Adjusting dimensions and re-compressing by trial and error is slow. RelahConvert lets you specify the exact KB target and the tool iterates until your image fits.

Behind the scenes, smart dimension scaling and quality adjustment combine to land on or just below your target. The result is the largest possible image that still meets the size requirement, so quality stays as high as the limit allows.

Why Resize an Image to a Specific KB?

Why Resize an Image to a Specific KB?

What KB sizes are supported?

Any value from a few KB up to several MB. Common targets like 50, 100, 200, and 500 KB are typical for forms and applications.

How does the tool reach the exact size?

It uses an iterative algorithm — compresses and scales the image, checks the result, then adjusts until the file lands at or just under your target.

What if my target is smaller than the original?

The tool reduces dimensions and quality progressively until the size constraint is met. Very small targets may produce visibly lower quality.

Will the aspect ratio be preserved?

Yes. The tool adjusts overall scale, not dimensions independently — your image keeps its original proportions.

What image formats are supported?

JPG, PNG, and WebP. JPG generally gives the most predictable results for hitting small KB targets since its compression is more flexible.