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ZeroToolbox

Compress Image to 100KB Online Free

Shrink photos to under 100 KB for free and keep them sharp. Works in your browser, with no upload and no sign-up.

  • Free
  • No sign-up
  • Nothing is uploaded

Related tools

Key Features

  • Finds the best quality that fits under 100 KB automatically
  • Useful for application forms, email attachments and profile photos
  • Photos stay on your device, and location data is removed
  • Shows the old and new file size side by side
  • Fast, even on phones
  • Works with JPG, PNG and WebP

How to Use

  1. 1Click "Choose image" or drop your photo onto the box.
  2. 2The photo is fitted under 100 KB automatically.
  3. 3Check that the photo still looks sharp.
  4. 4Click "Download Image" to save it.

Your privacy

ZeroToolbox never uploads your image. The compression happens entirely on your device.

Frequently Asked Questions

Will compressing to 100 KB make my picture blurry?

Usually not. 100 KB is enough for a clear photo at the sizes most forms and websites use. If it looks soft, lower the width and height slightly instead of the quality.

Do you keep a copy of my photo?

Never. The image is processed inside your browser, and nothing is sent to a server.