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
- Drop or paste your photo into the upload area above.
- Use the Brightness slider to lighten or darken the image.
- Use Contrast to add depth or soften the tones.
- Use Saturation to make colours more vivid or more muted.
- 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.