Browser tool

Image Size Reducer in KB

Reduce an image to a target measured in KB and see the achieved KB. Everything runs locally in your browser.

Sized in KBEnter a target in KB, optionally resize or change format, then Process. The tool reduces toward your KB value and reports the KB it achieves.
Result will appear here.

How this tool works

What it does

Reduces an image to a size you set in KB. It keeps the largest result at or under your KB target when it can, otherwise the closest, and reports the achieved KB.

KB, not Kb

Sizes here are kilobytes (KB), the unit operating systems and upload forms use for file size, not kilobits.

Privacy

The image is processed on your device. Nothing is uploaded, and re-encoding strips EXIF and GPS metadata.

Image Size Reducer in KB in your browser

This tool reduces an image to a target measured in kilobytes (KB), in your browser. Type the KB value you need and the tool compresses toward it.

It keeps the largest result at or under your KB target when it can, otherwise the closest, and reports the achieved KB. If the target is too small for the image at full size, the panel shows the closest KB and flags it as over target.

How to use Image Size Reducer in KB

  1. Add an image with the upload box or by dragging it in.
  2. Enter the size you need in KB, and optionally resize or change format.
  3. Click Process. The tool reduces toward your KB target and reports the KB it reaches.
  4. Check the achieved KB in the panel, then click Download.

Why use this tool

Measured in KB

Set the target in kilobytes, the unit forms and operating systems use for file size.

Honest KB result

Keeps the largest result at or under your KB target when possible, and flags it as over target when the target is not reached.

Keeps your format

Outputs the same format where possible and converts HEIC, TIFF, SVG, and GIF to JPG, which it discloses.

Private and local

All reduction happens in your browser; nothing is uploaded.

Common uses for Image Size Reducer in KB

Forms that specify KB

Meet limits written in KB on applications and portals.

Consistent file sizes

Bring a batch of images to a similar KB size one at a time.

Email and uploads

Reduce an image to a manageable KB size before sending.

Web optimization

Lower image weight to a chosen KB budget for faster pages.

Frequently asked questions

Does KB mean the same as the file size on my computer?

Yes. KB here is kilobytes, the same unit your operating system and upload forms use. It is not kilobits (Kb).

Will the image be exactly the KB I enter?

No. The tool reduces toward your KB target and reports the KB it actually reaches, keeping the largest result at or under target when it can.

Are my files uploaded to reduce their KB size?

No. The image is reduced in your browser, so it never leaves your device.

What if my KB target is too small?

The panel shows the closest achievable KB and flags it as over target, so you can lower the dimensions and try again.

Does reducing KB strip metadata?

If the tool re-encodes the image to reach your KB target, it removes EXIF and GPS metadata, which the panel notes. If the original is kept because it is already under target, its metadata is unchanged.

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