Cobalt Tools UploadReady

Upload-ready image tool

Resize Image to 100KB Online

Use this preset when a form rejects your photo because it must be under 100KB. UploadReady compresses toward the target and warns you if the browser cannot reach it cleanly.

JPGPNGWEBPHEIC/HEIF best-effort
  1. 1. Select image

    Drop a file or choose one from your device.

  2. 2. Adjust preset settings

    Change KB, dimensions, crop or format if needed.

  3. 3. Download result

    Preview the new file before saving it.

Browser processing

Image to 100KB

Best for JPG, PNG, WEBP or HEIC photos that need a 100KB limit.

Original preview

Upload a file to preview it here.

Result preview

Processed image appears here before download.

How to use this tool

  1. 1

    Upload your image.

  2. 2

    UploadReady compresses it toward 100KB.

  3. 3

    Preview the result and download the optimized JPG.

Useful for

  • Application forms
  • Profile photos
  • Upload portals

Preset settings

target
100KB
output
JPG

Where are my files and text processed?

Processing takes place locally in your browser. Your selected files and text stay on your device during processing.

Is this tool free to use?

Yes. Use this tool for free, directly in your browser, without an account.

How do I save the result?

Use the download or copy action in the workspace once your result is ready.

Related UploadReady tools

These internal links point to nearby presets that solve similar upload-size, dimension or conversion tasks.

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