Adjust Gamma of an Image

This handy online tool allows you to adjust the gamma of any uploaded image, giving you precise control over its brightness and contrast. The gamma filter is a widely used image editing tool that affects how smoothly the tones in an image transition from dark to light, making it essential for correcting exposure and enhancing overall image quality.

Adjusting gamma can help bring out details in shadows, tone down overly bright areas, or achieve a more balanced, natural-looking image. It’s especially useful for photographers, designers, and anyone looking to fine-tune their images without complicated software.

For your privacy, all image processing is done directly in your browser, and no files are uploaded to our servers. This ensures that your images remain secure while you make precise gamma adjustments quickly and easily.

Accepted Files : .png, .gif, .jpg and .jpeg

Drag and drop an image here or browse your device, or paste from your clipboard PNG, JPG, GIF or WebP

How to use it

The image gamma adjustment tool lets you fine tune the mid-tones of a photo.

Add your imageDrag and drop it onto the upload area, browse for a file, or paste one from your clipboard.
Set the gammaMove the slider between 0.1 and 10 in steps of 0.1. A value of 1 leaves the image as it is, values below 1 lighten the mid-tones and values above 1 darken them.
ComparePress and hold the Compare button to flip back to the original and check the difference.
DownloadHappy with the result? Save it as a PNG. Nothing is uploaded, so it is virtually instant.

Getting a good result

Bring out shadow detail

Try values between 0.5 and 0.9 to open up dark areas without blowing out the highlights.

Tame bright photos

Values between 1.1 and 2 deepen the mid-tones of an over-bright image. Small steps go a long way.

Different from brightness

Gamma keeps pure black and pure white where they are and only moves the tones in between, so it is gentler than a brightness change.

Frequently asked questions

Is my image uploaded anywhere?

No. The adjustment is applied inside your browser, so your image never leaves your device and nothing is stored on our servers.

What is gamma?

Gamma describes how the tones of an image are spread between black and white. Changing it brightens or darkens the mid-tones while leaving pure black and pure white unchanged.

Which way does the slider work?

A gamma of 1 is the original image. Below 1 the picture becomes lighter and above 1 it becomes darker. Some other editors use the opposite convention, so the numbers may differ from what you are used to.

Which file types can I use, and what do I get back?

You can add PNG, JPG, GIF and WebP images. The result is always downloaded as a PNG. For animated GIFs, only the first frame is used.

Why was my large image made smaller?

To keep your browser responsive, images longer than 4000 pixels on their longest side are scaled down before editing. The line under the preview shows the original and resized dimensions.

How do I compare the result with the original?

Press and hold the Compare button to show the original image, then let go to see your adjusted version again. On a keyboard, hold the Space or Enter key while the button is focused.