ShadowText

Offline Text Steganography Engine for Android

Hide any file inside ordinary-looking text using invisible Unicode characters. No servers. No internet. No tracking.

What it does Encode: Select any file (image, video, audio, PDF, ZIP, APK, any file) and encode it into text Decode: Paste any stego text and extract the hidden file Detect: Automatically scans text for hidden payloads

How it works Files are converted to bytes, wrapped in a versioned binary format with CRC32 integrity checks, then encoded using invisible Zero-Width Unicode characters (U+200B, U+200C, U+200D, U+FEFF). The invisible payload is embedded inside ordinary English carrier text. The result looks like normal sentences but carries hidden data.