What is Image Steganography?
Steganography is the art and science of hiding secret data in plain sight. Unlike cryptography, which scrambles a message so it cannot be read without a key, steganography hides the existence of the message entirely. The HU-StegoCrypt tool uses a technique called Least Significant Bit (LSB) manipulation.
How the LSB Steganography Engine Works
Every digital image is made up of millions of pixels, and every pixel contains Red, Green, Blue, and Alpha (RGBA) color channels. This tool takes your secret text, converts it into raw binary data (1s and 0s), and alters the very last bit (the least significant bit) of those color channels to embed your message. Because the alteration is so microscopically small, the human eye cannot detect any change in the image's color or quality.
Privacy Guarantee: This tool runs completely on client-side HTML5 Canvas. Your images and secret messages are processed locally in your browser. Nothing is ever uploaded or saved to our servers.