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Reduce image size in KB

Upload forms rarely tell you how to get there, only that the photo must be under so many KB. Choose the limit, drop the photo and download a copy that fits, at the best quality possible. Nothing leaves your device.

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How to use it

Reduce image size in KB in three steps

  1. 1

    Pick the size limit

    Choose 20 KB to 1 MB, or Custom to type any number.

  2. 2

    Add a photo

    JPG, PNG, WebP or iPhone HEIC.

  3. 3

    Download

    The tool picks the highest quality that fits, and resizes only if it must.

FAQ

Reduce image size in KB: questions

Is my photo uploaded?

No. The file is read by your browser and processed on your device; nothing is uploaded to a server, so there is nothing for us to keep.

What is the difference between KB and MB?

1 MB is 1024 KB. A typical phone photo is 2 to 5 MB, so a 100 KB limit means making it 20 to 50 times smaller.

Why is my file still slightly too big for the website?

Some sites count 1 KB as 1000 bytes rather than 1024. If a file is rejected, set a limit a few KB lower than the site asks for.

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