Histogram Equalization

Open in Editor

Automatically improve contrast by equalizing the histogram. Spreads pixel values across the full tonal range.

How to use Histogram Equalization

  1. Upload your image using drag & drop or click to browse.
  2. See the result instantly — processing happens in your browser.
  3. Download your processed image as a PNG file.

About Histogram Equalization

Automatically improve contrast by equalizing the histogram. Spreads pixel values across the full tonal range. This tool is part of ImageToolbox's collection of free online image tools. It runs entirely in your browser — your images are never uploaded to our servers.