Steganography Tool Kit

StegoTK

Hide secret messages inside images. Encode and decode entirely in your browser — optionally encrypted and error‑corrected.

Private, in‑browserAES‑GCMHamming (7,4) ECCNo uploads

Image Steganography

Securely embed or extract text using RGB-LSB technique.

Cover image

Drag & drop an image here, or

Technique

LSB is fastest and high capacity on PNG. Scatter randomizes placement with a key. Matching tweaks pixels ±1 for stealth. Edge modes write in busier areas. Robust uses JPEG DCT for better resilience.

Container

PNG preserves every bit (best for LSB). JPEG is lossy; use with Robust (JPEG/DCT).

ECC

Error correction adds redundancy to recover from mild edits. Hamming is lightweight.

Target Usage

100% of available capacity

Lower usage improves stealth at the cost of capacity.

Secret message

Encrypt (AES‑GCM)

Compress payload

Passphrase

Required for scatter and decryption. Keep this secret to secure your payload.

Upload a cover image to preview