Dehaze

Remove fog, haze, and the low contrast they cause in your photos, restoring a clear and crisp scene. The tool uses the dark channel prior algorithm to estimate and compensate for atmospheric scattering. All processing happens locally in your browser.

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Drop a photo or click to upload

PNG, JPG, WEBP, BMP

What Is the Dehaze Tool?

The Dehaze tool uses the dark channel prior algorithm to remove fog and haze from photos, restoring the scene's original clarity and color saturation.

It is ideal for fixing landscape photos taken on foggy or hazy days, making distant mountains and skies clear again.

How to Remove Haze from a Photo

Follow these steps:

  • Drop or upload a hazy or foggy photo.
  • Adjust the strength and window size as needed.
  • Click Dehaze and review the result.
  • Download the dehazed image as a PNG file.

Tips

  • The default strength of 100% suits most foggy photos.
  • Pair with Auto Contrast afterwards for further refinement.
  • For extremely dense fog, process twice for a more natural result.

Frequently Asked Questions

How does dehazing work?+
The tool uses the dark channel prior algorithm: it estimates the atmospheric light in the image, uses the dark channel to estimate the haze density (transmission) of each region, then reverses the atmospheric scattering to restore a clear scene.
Which photos is it good for?+
It works well on photos taken on foggy, hazy, or humid days, hazy-looking shots, and lightly misted mountain landscapes.
What does the window size mean?+
The window size is the local neighborhood range used when computing the dark channel, and it determines how finely the haze density is estimated. Larger windows give smoother estimates; smaller windows keep more detail.
Is my photo uploaded anywhere?+
No. All processing happens locally in your browser — your photos never leave your device.

Related Tools

Auto ContrastWhite BalanceHDR Tone Mapping

Dehaze — free online dehaze, remove fog, photo dehaze, haze removal, clear landscape, dehaze photo, remove haze. No signup required. Works in your browser.