ImgSecret

About ImgSecret

ImgSecret is a free, open-source image steganography tool that runs entirely in your browser. No data is ever uploaded to a server — everything happens locally on your device.

How It Works

  1. 1Upload a PNG image to use as the carrier for your secret message.
  2. 2Enter your message and optionally set a passphrase for AES-GCM encryption.
  3. 3Download the output image — it looks identical to the original but contains your hidden data.

Technology

This tool uses LSB (Least Significant Bit) steganography to embed data in the pixel channels of PNG images. Optional AES-GCM encryption via the Web Crypto API ensures your message stays private.

Use Cases

  • Secure communication — hide messages in innocuous images
  • Digital watermarking — embed ownership information
  • Privacy — store sensitive data without raising suspicion