Fourier Steganography

Adaptive data hiding (Stealth mode) in the frequency domain of an image.

Stealth mode (Anti-CNN): Smooth areas of the photo (sky, walls) are ignored. Data is hidden only in complex textures, leaving no traces.
Select a photo (PNG/JPEG/WEBP)
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How to use:
  • Select a photo with texture (grass, asphalt, noise); smooth photos are almost unsuitable.
  • Enter the secret text and password — it is encrypted and hidden in DCT coefficients.
  • Dual layer: open advanced options, set a decoy text and a separate decoy password.
  • The decoy password will reveal the decoy message, the real one — the real message.
  • The container must be stored without re-compression (PNG only).
+ Advanced options (Dual layer)
Upload the PNG container
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