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Ajusteur de luminosité et contraste

Outils d'image · Outil en ligne gratuit

Ajuster luminosité, contraste et saturation.

Équipe CoderNewbie
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Aperçu
Upload an image to tune it

Three Sliders

Brightness, contrast and saturation in one tool.

Live Preview

Adjustments render instantly before exporting.

Reset to 1.0

Default values keep the image unchanged.

Comment utiliser Ajusteur de luminosité et contraste

  1. 1Upload your image file or drag and drop it into the tool.
  2. 2Adjust the tool-specific settings (quality, size, format, etc.).
  3. 3Click the process button to apply changes.
  4. 4Download the processed image.

Fonctionnalités

  • 100% gratuit — sans inscription, sans abonnement, sans publicité
  • Fonctionne entièrement dans votre navigateur — vos données ne quittent jamais votre appareil
  • Rapide et léger — résultats instantanés
  • Multiplateforme — compatible ordinateur, tablette et mobile

Questions fréquentes

Are my images uploaded to a server?

No. All image processing happens locally in your browser using canvas and WebGL APIs. Your images never leave your device.

What image formats are supported?

We support JPEG, PNG, WebP, ICO, and BMP formats depending on the tool. See the tool description for specifics.

Is there a file size limit?

Images up to 20MB are typically supported. Larger files may cause performance issues on some devices.

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