Brightness & Contrast Adjuster
Adjust the brightness and contrast of an image with live preview.
Brightness and contrast are the two most common fixes a photo needs: brightness lifts or lowers the overall exposure, while contrast stretches or compresses the gap between lights and darks to make a flat image pop or a harsh one soften. Together they rescue underexposed snapshots and dull scans in seconds.
Upload an image, drag the two sliders with a live preview, and download the adjusted result. Everything runs on the browser's canvas engine — your photo is processed on your device and never uploaded.
How to use Brightness & Contrast Adjuster
- 1
Upload an image
Drop a PNG, JPG or WebP.
- 2
Drag the sliders
Brightness and contrast update the preview live.
- 3
Download
Save the adjusted image.
Features
- Live preview while adjusting
- Independent brightness and contrast control
- Private, browser-based processing
Frequently asked questions
Common mistakes to avoid
- Cranking contrast to compensate for poor lighting, which clips detail; a gentler touch usually looks better.
- Editing a JPEG repeatedly, accumulating compression artifacts with each save.
Get new tools in your inbox
One email a month with new tools, guides, and updates. No spam, unsubscribe anytime.