Adjust brightness and contrast

Adjust brightness and contrast: brightness for images—local processing, no upload.

Adjust brightness and contrast performs brightness on images client-side—pick JPEG, PNG, or WebP, then download the result. Everything runs in your browser; nothing is uploaded to our servers.

How to use

Select an image file for Adjust brightness and contrast.
Adjust the options shown on the page.
Download the processed image.

FAQ

Which formats work with Adjust brightness and contrast?

Common web formats; some modes strip EXIF metadata for privacy.

Embed this calculator

Paste the snippet on your site or blog — the widget stays responsive inside the iframe.

<iframe src="https://lagnis.com/tools/brightness-contrast/embed/" title="Adjust brightness and contrast" loading="lazy" style="width:100%;max-width:640px;min-height:420px;border:0;border-radius:12px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

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