Steganography Detector

Visualise the least-significant bits (LSB) of each colour channel in an image. If hidden data has been embedded using steganography, the LSB planes will show structured patterns rather than random noise. Useful for detecting stegano-watermarks in AI-generated content.

100% freeNo sign-upRuns in your browserNo upload · data stays private
No file chosen

How to interpret the results

Random noise (uniform grey static): No detectable hidden data — the LSB planes look like white noise, which is normal for natural images and most AI images.

Visible patterns or structures: May indicate steganographic embedding. The pattern will often match the outline of a message, another image, or repeated blocks.

Note: JPEG compression randomises LSBs, so JPEG images almost always look like noise. PNG images (lossless) are better candidates for LSB steganography.

How to use this tool

  1. Upload an image (PNG gives clearest results; JPEG will show mostly noise due to compression).
  2. Choose how many LSB planes to extract.
  3. The tool shows each colour channel's LSB plane. Look for structure vs. noise.