About this tool
Brightness & Contrast applies industry-standard photoshop-style formulas to your image: brightness shifts all pixel values uniformly, while contrast uses a luminance-preserving curve adjustment for natural-looking results.
How it works
- 1Upload your image.
- 2Drag the Brightness slider (−100 to +100).
- 3Drag the Contrast slider (−100 to +100).
- 4The preview updates live. Hit Reset to start again, or Download.
Common use cases
- ✓Correcting underexposed phone photos
- ✓Boosting contrast for print
- ✓Lightening dark product photography
- ✓Preparing images for presentations
Privacy first. Brightness & Contrast runs entirely inside your browser using the HTML5 Canvas API. Your images are never uploaded to any server, stored anywhere or shared with third parties. Everything happens locally on your device.
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Open Brightness & Contrast