Image TOOL

Resize image to KB

Prepare an image under 20 KB, 50 KB, 100 KB, 200 KB or your own maximum upload size.

1 Choose your file Stays on your device

Drop your image here

or choose from your device

JPG, PNG, WebP or HEIC · max 25 MB
2 Set your requirements
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No upload. No account. No charge.

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GET THE DETAILS RIGHT

How to use resize image to kb

Enter the maximum size stated by the receiving website. The quality search finds the highest tested JPEG or WebP quality under that limit while preserving your selected dimensions. If the target cannot be met, reduce dimensions or raise the limit. We use 1 KB = 1,000 bytes for conservative upload checks.

  1. Choose the original file from your phone or computer.
  2. Set your requirements and inspect the preview where available.
  3. Prepare the file, check the result and download your copy.

Good to know

Is the output exactly 50 KB?

The limit is a maximum, not padding to an exact byte count. A clear 49 KB file satisfies a 50 KB maximum. Minimum-size requirements must be checked separately.

Why can a target fail?

A detailed image at large dimensions may need more bytes than the limit even at low quality. The app reports that honestly instead of labelling the file valid.