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• c source filetrickery.c : Stenographied file transfer using posix file locks with background article: Steganographied file transfer using posix file locks
• Camouflage : hide files by scrambling and attaching to the file of your choice
  
• Firewall bypass via protocol steganography
  
• Gifshuffle : conceal messages in GIF images by shuffling the colourmap
  freeware
• Hide and Seak (Colin Maroney) : The data is first encrypted using the blowfish algorithm
  
• ImageHide
  
• InfoStego : protect your private information and hide it into picture or other files
  
• Introduction to Steganography - Duncan Sellars
  
• Invisible Secrets : encrypts and hides files in JPEG, PNG, BMP, HTML and WAV files
  fullfeatured, commercial
• JPhide / JPseek : freeware jpg steg tool
  
• Jsteg : source code available
  
• JPegX : encryption program that hides information inside standard JPEG image files
  freeware
• MandelSteg / GifExtract
  
• mp3Stego
  freeware
• NiceText : converts any file into pseudo-natural-language text (and back)
  
• OutGuess : PNM and JPEG image formats are supported, source code available
  
• Snow : conceal messages in ASCII text by appending whitespace to the end of lines
  
• Stegdetect : automated tool for detecting steganographic content in images
  freeware
• Steganos-Portfolio : commercial suite
  
• Steganos Security Suite
  
• StegFS : a steganographic file system for Linux
  
• TextHide : subtly changes text features, such as narration tense, perspective, and single word synonym replacements to hide data within any text file
  
• ThirdEye : conceal your secret data inside pictures
  freeware