Adjust Image Brightness, Contrast & Saturation

Fix dark, overexposed, or dull photos instantly. Three sliders — drag and see changes in real time. Works entirely in your browser, no upload needed.

Drop your image here

or click to browse

JPG, PNG, WebP, GIF · up to 20 MB · or paste with Ctrl+V

How to adjust image brightness online

  1. Drop or paste your photo into the upload area above.
  2. Use the Brightness slider to lighten or darken the image.
  3. Use Contrast to add depth or soften the tones.
  4. Use Saturation to make colours more vivid or more muted.
  5. Click Download to save your adjusted photo as JPEG.

All processing happens locally in your browser — your image is never sent to any server. Supports JPG, PNG, WebP, GIF, and more up to 20 MB.

What each slider does

  • Brightness — controls how light or dark the overall image appears. Below 100% darkens; above lightens.
  • Contrast — increases or decreases the difference between light and dark areas. High contrast gives a punchy, dramatic look; low contrast softens the image.
  • Saturation — controls colour intensity. 0% produces a greyscale image; 200% makes colours extremely vivid.