How to adjust image exposure?

Select your file, set the exposure value in stops — positive stops brighten the image, negative stops darken it.

How is exposure adjustment different from brightness?

Exposure multiplies pixel values by a power-of-two factor per stop, mimicking camera aperture; brightness adds a flat offset to all values.

What are exposure stops?

Each stop doubles or halves the light: +1 stop doubles brightness, -1 stop halves it — matching the way cameras measure exposure.

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.

BrushCue Tool

Adjust Image Exposure Online

Click to get startedDrop your image here

tap to choose a fileor click to browse

Go to Exposure Adjust editor →

What you can expect

Adjust the exposure of your image using exposure steps. Mimics the effect of increasing or decreasing the exposure when taking a photo.

Related tools

More BrushCue tools that fit this workflow.

See all tools →

Lighten

An image brightness adjustment tool with a user-controlled slider, perfect for correcting underexposed or overexposed photos, enhancing mood, and bringing out detail in shadows or highlights.

Darken

A darkness adjustment tool with a user-controlled slider, designed to deepen shadows and reduce overall luminance for a richer, more dramatic look. Ideal for toning down overexposed areas, enhancing contrast, setting mood, and subtly obscuring details to create depth and atmosphere.

Brightness Adjust

Adjust image brightness online with live preview. Lighten or darken photos instantly using this free browser-based brightness adjustment tool.

Contrast Adjust

Use this tool to increase or decrease the contrast in your images. Values greater than 0 increase the contrast. Values less than 0 decrease the contrast.

Brightness Contrast Adjust

This tool allows you to increase the contrast of the brightness of an image. Leading more stark contrast between dark and light areas of your image while leaving the colors uneffected.

Frequently asked questions

How to adjust image exposure?: Select your file, set the exposure value in stops — positive stops brighten the image, negative stops darken it.
How is exposure adjustment different from brightness?: Exposure multiplies pixel values by a power-of-two factor per stop, mimicking camera aperture; brightness adds a flat offset to all values.
What are exposure stops?: Each stop doubles or halves the light: +1 stop doubles brightness, -1 stop halves it — matching the way cameras measure exposure.
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.

For developers

Use Exposure Adjust from Python

Open the Jupyter notebook example to see how to run this tool from the BrushCue Python API, inspect the processing steps, and adapt the workflow for scripts or batch image jobs.

View Python notebook

Build your own

Adjust Image Exposure Online

What you can expect

Read more about Exposure Adjust

Learn the Difference Between Exposure and Brightness

Frequently asked questions

Use Exposure Adjust from Python

Create projects with your custom presets