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Adjust Image Contrast Using Lightness Online

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tap to choose a file

Go to Brightness Contrast Adjust editor →

What you can expect

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.

Brightness Contrast Adjust animation preview

Related tools

More BrushCue tools that fit this workflow.

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Lighten animation preview

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 animation preview

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.

Related posts

Read more about Brightness Contrast Adjust

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2026-02-09

Comparing Contrast Adjustment Options

By Anthony Dito

A quick guide to choosing the right contrast tool in BrushCue.

Frequently asked questions

How to adjust brightness and contrast together?
Select your file, then use the brightness and contrast sliders together to fine-tune the luminance balance of your image.
What does Brightness Contrast Adjust do?
It controls both brightness and the contrast applied to brightness values, letting you lighten and punch up mid-tones simultaneously.
How is this different from Contrast Adjust?
Contrast Adjust targets overall color contrast; this tool focuses specifically on the brightness (luminance) component.
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.

For developers

Use Brightness Contrast 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

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