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MixTool

Adjust image contrast

Make flat, hazy photos pop — or soften harsh ones — with a single contrast slider and instant preview.

  • Files never leave your device
  • Free · no sign-up
  • Works on phone and desktop
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Give photos depth and punch

Contrast is the difference between the darkest and lightest parts of a picture. Photos taken on hazy days, through windows or with budget cameras often look grey and flat; a contrast boost restores depth so colours and edges stand out.

Going the other way — lowering contrast — creates a gentle, matte look that's popular for lifestyle and wedding photos. Compare with the original using the split slider and fine-tune brightness in the same place.

How to change contrast

  1. 1

    Open the image

    Choose, drag in or paste a photo.

  2. 2

    Adjust contrast

    Move right for more punch, left for a softer, faded look.

  3. 3

    Check both halves

    Use the split view to compare, and tweak brightness if needed.

  4. 4

    Download

    Save the result at full resolution.

Key features

  • Two-way control

    Increase or decrease contrast from −100 to +100.

  • Split comparison

    See the before and after side by side on your photo.

  • Complete basics

    Brightness, grayscale, blur and sharpen are one click away.

  • No upload

    Editing runs locally in your browser.

Common uses

  • Hazy landscapes: Cut through mist and glare.
  • Scanned pages: Make faint text darker and backgrounds cleaner.
  • Social posts: Create a consistent matte or punchy style across photos.

Tips and good to know

  • Big contrast increases can clip shadows to pure black and highlights to pure white. Stop when detail starts to vanish.
  • Contrast plus a little sharpening makes documents much more readable — try the Sharpen tool next.

Frequently asked questions

What does increasing contrast do?

It makes dark areas darker and light areas lighter, which makes the picture look clearer and more vivid.

How do I get a faded, matte look?

Lower the contrast by 15–35 and slightly raise the brightness.

Will adjusting contrast reduce quality?

No. The output keeps the full resolution and original format.