What does Auto-fix tones do?

It finds the darkest and lightest parts of the picture and stretches them to the full range, which lifts flat, hazy photos without shifting colours.

What does Colour intensity do?

It raises or lowers how vivid colours are. At −100 the picture becomes black and white.

Can I adjust many photos the same way?

Yes — the same settings apply to every image you add.

Will it damage the picture?

Pushing sliders to extremes can lose detail in very bright or dark areas. Your original is never changed — you download a new file.

Image Tool

Brightness & Contrast

Brighten a dark photo, add punch with contrast, boost or mute colour — or let Auto-fix stretch the tones for you. Live before/after, and it works on many images at once. Runs entirely in your browser.

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Drag an image here, or click to browse

Multiple files supported · Max 50.0 MB

How it works

1
Add one or many images.
2
Move the Brightness, Contrast and Colour intensity sliders, or turn on Auto-fix tones.
3
Compare before and after live.
4
Apply and download — individually or as a ZIP.

Brightness & Contrast — frequently asked questions

What does Auto-fix tones do?: It finds the darkest and lightest parts of the picture and stretches them to the full range, which lifts flat, hazy photos without shifting colours.
What does Colour intensity do?: It raises or lowers how vivid colours are. At −100 the picture becomes black and white.
Can I adjust many photos the same way?: Yes — the same settings apply to every image you add.
Will it damage the picture?: Pushing sliders to extremes can lose detail in very bright or dark areas. Your original is never changed — you download a new file.