Adjust Image Gamma Online
Click to get startedDrop your image here
tap to choose a fileor click to browse
What you can expect
Adjust the gamma of your image with a single slider. Values below 1 brighten midtones while values above 1 darken them, leaving pure black and white fixed.
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Adjust image brightness online with live preview. Lighten or darken photos instantly using this free browser-based brightness adjustment tool.
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Adjust the exposure of your image using exposure steps. Mimics the effect of increasing or decreasing the exposure when taking a photo.
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Online Photo Enhancement Tools
→Frequently asked questions
- How do I adjust the gamma of an image?
- Select your file, then drag the gamma slider. Values below 1 brighten midtones, values above 1 darken them.
- What does 1.0 mean?
- At 1.0 the image is unchanged. Pure black and pure white stay fixed at any setting; only the midtones move.
- How is gamma different from brightness?
- Brightness shifts all tones uniformly, while gamma applies a power curve that reshapes midtones and preserves the black and white points.
- What file formats can I export?
- You can export as PNG, JPEG, WebP, TIFF, BMP, or HEIC.
- Is this tool free to use?
- Yes — completely free, no account needed. Your images are processed entirely in your browser and never uploaded to a server. Downloads have no watermarks.
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