Is my image uploaded?

No — all pixel operations run locally via Canvas getImageData.

Image Brightness & Contrast

Adjust brightness and contrast of any image in your browser with live preview. Download as PNG.

By AbraCalc Editorial Team · Reviewed by AbraCalc Methodology Review · Last reviewed: 2026-06-25

Choose an image

Brightness: 0
Contrast: 0

Choose an image to adjust brightness and contrast.

Pure browser JavaScript (HTML canvas) — no upload.

Embed this tool on your site

<iframe src="https://abracalc.com/app/image-brightness-contrast/" width="100%" height="640" style="border:1px solid #e4e7ec;border-radius:12px" loading="lazy"></iframe>

How to use this tool

Choose an image.
Drag the Brightness and Contrast sliders.
Click Download.

Adjust brightness and contrast of any image in your browser with live preview. Download as PNG.

Frequently asked questions

Is my image uploaded?: No — all pixel operations run locally via Canvas getImageData.

Image Brightness & Contrast

How to use this tool

Frequently asked questions

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