Security & Privacy 100% Local Processing Limit: 15 MB

In-Browser Image Steganography (Hide Text in Image)

Conceal secret confidential messages and cryptographic keys inside harmless PNG images using Least Significant Bit (LSB) pixel encoding, or decode hidden text.

Sponsor Space

1. Carrier Image & Secret

2. Steganographic Output

Sponsor Space

How to Use the In-Browser Image Steganography (Hide Text in Image)

  1. 1
    Select Encode Mode: Drop a carrier image and type your secret message.
  2. 2
    The tool modifies the least significant bit of RGB pixel channels—completely invisible to the human eye.
  3. 3
    Download the stego-PNG image.
  4. 4
    Switch to Decode Mode and drop any stego-PNG to extract the hidden payload.

Practical Example & Use Case

Common Real-World Scenario

Transmitting a confidential Bitcoin recovery phrase or secret password securely hidden inside a normal travel photograph.

Technical Notes & Limitations

Browser Engine Architecture

Requires lossless PNG format (JPEG lossy compression overwrites LSB data).

Frequently Asked Questions

Can someone visually see the hidden message?

No! Changing the lowest bit shifts color luminance by only 1 part in 256, which is optically imperceptible to human vision.