BrushCue
Settings
← Online Image Color Adjustment Tools

Adjust Image Contrast Online

Click to get started

tap to choose a file

Go to Contrast Adjust editor →

What you can expect

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.

Contrast Adjust animation preview

Related tools

More BrushCue tools that fit this workflow.

See all tools →
Brightness Contrast Adjust animation preview

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.

Brightness Adjust animation preview

Brightness Adjust

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

Included in collections

Browse by category

Online Image Color Adjustment Tools

→

Related posts

Read more about Contrast Adjust

View all

2026-02-09

Comparing Contrast Adjustment Options

By Anthony Dito

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

2026-01-24

How Contrast Adjustment Works

By Anthony Dito

Learn how the contrast adjustment tool works under the hood in BrushCue.

Frequently asked questions

How to adjust contrast in an image?
Select your file, drag the contrast slider — positive values increase contrast, negative values reduce it.
How does contrast adjustment work?
It scales pixel values around the midpoint, pushing bright areas brighter and dark areas darker when the value is increased.
Is this like Photoshop's or Lightroom's Contrast slider?
Yes — all three scale pixel values around the midpoint. Lightroom's Contrast applies a subtle S-curve; this tool uses a linear approach, closer to Photoshop's legacy Contrast behavior.
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 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

Build your own

Create projects with your custom presets

Sign in to save work, organize projects, and keep your favorite tool setups ready to go.

Sign in to create projects