The Encoder conceals a text message into an audio file. Any audio/video (mp4, mov, mp4, wav) files are supported via file upload. Enter your secret message into the text area, and a new audio file will be provided containing it. For additional security, you may also choose to encrypt your secret message and provide a key (alphabetic characters only).
The Decoder extracts a text message from an audio file. If the sender encrypted the message with a key, you can supply the same key to obtain the original message.