Steganography Lab
Hide a message in a picture. The secret is in the pixels.
Processing image...
Observatory postcard
original image: Observatory postcard
PNG or JPEG / up to 8 MB and 4 million pixels
Your secret message
27 / 0 bytesUTF-8
PNG or JPEG, up to 8 MB and 4 million pixels. Transparent areas become white.
The hidden message
Text is stored in the lowest bit of red, green, and blue values. Each color changes by at most 1.
01
Hidden, not encrypted
Steganography conceals a message inside something else. Encryption scrambles its meaning. Anyone with a compatible decoder can read this message. Keep the original PNG: resizing, screenshots, and JPEG conversion can change its bits.