LSB hidden text · audio
Pull a hidden message out of a recording
Least-significant-bit steganography writes text into the lowest bit of each audio sample, below anything the ear can hear. The hidden text scan finds readable strings in a file's bytes; this reads a message embedded in the samples back out, and lets you embed one yourself to see how the channel works.
Runs entirely in your browser. Your file is never uploaded or stored.
Decoding audio…
Samples versus bytes
Two different hiding places, two different tools. The hidden text scan reads the file's raw bytes and surfaces readable strings — tags, encoder names, or a note appended after the audio. This tool decodes the file to its actual sound samples and reads the low bits of those, which is where a real audio-steganography payload lives. A clip can look clean to one and carry data for the other.
Why the format matters
The message lives in the exact sample values, so it only survives a lossless format. A PCM WAV keeps it; MP3, AAC or Opus re-compress the samples and destroy it. That is why a message embedded here is saved as a WAV, and why a hidden payload does not survive being converted to a compressed format or sent through an app that re-encodes audio.
Hiding is not encryption
LSB steganography conceals that a message exists; it does not protect it. As this tool shows, anyone who suspects a clip carries LSB data can read it straight out. A real secret is encrypted first, then hidden, so that finding it is not the same as reading it.