🕵️‍♀️ Invisible Steganography Tool (HTML + JS)

This is a simple web-based steganography utility that lets you hide messages invisibly inside plain text using Unicode zero-width characters.

The entire app is built in pure HTML, CSS, and JavaScript — no backend, no dependencies, no build system. Check it out live: 👉 https://hamkee.net/stegano/

✨ Features

• ✅ Encode a hidden message invisibly inside any visible text
• ✅ Decode and extract hidden messages from encoded text
• ✅ User-friendly web interface with two clean sections: Encode and Decode
• ✅ Copy-paste support for easy message sharing
• ✅ 100% client-side – your data never leaves your browser

---

🚀 How It Works

The tool uses two invisible Unicode characters:

Bit	Unicode Character	Code Point
0	Zero Width Space	U+200B
1	Zero Width Non-Joiner	U+200C

These are inserted invisibly after characters in your carrier text to encode the binary representation of a hidden message.

---

📦 Usage

1. Open the index.html file in any modern browser
2. Navigate to the Encode tab:
   • Paste or type a carrier text
   • Enter the message to hide
   • Click Encode
   • Copy the encoded result using the Copy button
3. To reveal a hidden message:
   • Switch to the Decode tab
   • Paste the encoded text into the input box
   • Click Decode to reveal the original hidden message

---

🛡️ Security & Privacy

This is a client-side only tool. Everything runs locally in your browser.
No data is ever sent over the network.

---

🛠️ Technical Notes

• Hidden messages are converted to binary (UTF-8) and embedded using zero-width characters.
• Remaining bits (if the carrier text is shorter than needed) are appended at the end.
• The tool works best in plaintext editors that preserve Unicode characters.