How to adjust online free?

Upload your image to our free brightness & contrast tool. Adjust the controls and download the result. All processing happens locally in your browser.

Is brightness & contrast really free?

Yes, our brightness & contrast tool is completely free with no limits, no watermarks, and no registration. All processing is local for privacy.

Does brightness & contrast work on mobile?

Yes, Brightness & Contrast works on any device with a modern browser including phones and tablets, with no app download needed.

Luminosité et contraste

Déposer l'image sur le contraste de luminosité

Prend en charge JPG, PNG, WebP

Brightness: Contrast:

Why Use Our Brightness & Contrast

100% free — no hidden fees or limits
No uploads — your images stay on your device
Works in any modern browser
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>Comment fonctionnent la luminosité et le contraste

Téléchargez votre image et ajustez les commandes pour affiner l'effet. Prévisualisez les modifications en temps réel.

Une fois satisfait, téléchargez votre image traitée. Tout le traitement s'effectue localement dans votre navigateur.