Lighten Image

Open in Editor

Increase the brightness of your image by adding a fixed amount to each color channel.

How to use Lighten Image

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

About Lighten Image

Increase the brightness of your image by adding a fixed amount to each color channel. 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.