Unicode Variation Selector Data Hiding Tool

Hide secret messages in plain text using invisible Unicode variation selectors (VS1-VS256). Based on Paul Butler's technique, this powerful steganography tool encodes data into invisible characters that remain hidden in plain sight.

Invisible Messages Steganography Digital Watermarking Secure Communication Document Tracking

Hide Data in Text

Enter the secret message or data you want to hide in plain text.
Choose a character or emoji that will carry the hidden data.

Extract Hidden Data

Paste text containing hidden data to extract it:

Paste the text that contains hidden Unicode variation selectors.

What is Unicode Variation Selector Data Hiding?

Unicode Variation Selector Data Hiding is a powerful steganography technique that allows you to hide secret messages within plain text using invisible Unicode variation selectors. Based on Paul Butler's innovative technique, this method encodes data into Unicode variation selector codepoints (VS1-VS256) that are completely invisible when rendered but can be extracted later.

How Does Unicode Steganography Work?

This technique works by encoding data bytes into Unicode variation selector codepoints (U+FE00 through U+E01EF) attached to visible characters. Since variation selectors are designed to be invisible and preserved during text operations, they create a perfect hiding place for data. The hidden information remains completely undetectable to the naked eye while being preserved in the text.

Use Cases for Unicode Data Hiding

  • Steganography: Hide secret messages in plain text for covert communication
  • Digital Watermarking: Embed tracking codes or ownership information in documents
  • Document Tracking: Add invisible identifiers to track document distribution
  • Secure Communication: Transmit hidden data through public channels
  • Covert Messaging: Send messages that appear as normal text

Important Security Notes

Important: This is a steganography tool, not encryption. It hides data in plain sight rather than scrambling it. For truly secure communication, you should encrypt your message before hiding it with this tool. Some platforms may strip variation selectors, so always test before using for important data.

Whether you're conducting security research, implementing digital watermarking, or exploring steganography techniques, our Unicode Variation Selector Data Hiding Tool provides a powerful and free way to hide data in plain text.