SanTools

    Steganography Tool
    Hide Messages & Files in Images

    Encrypt your messages and files, then hide them invisibly inside images with end-to-end encryption. 100% free.

    Encryption

    Your data is encrypted in the browser before being inserted into the image.

    Upload Image (JPG, JPEG, PNG)

    or drag & drop here

    Only JPG, JPEG, or PNG images are allowed

    Result

    Select data type and upload to begin

    Supports text messages and any file type

    What is Steganography?

    Steganography is the practice of hiding secret information within an ordinary file or message to avoid detection. Unlike encryption, which scrambles data to make it unreadable, steganography conceals the very existence of the data.

    Our tool uses advanced pixel-level hiding combined with end-to-end encryption to conceal your data inside ordinary images. You can hide text messages or entire files (documents, images, etc). Supports JPG, JPEG, & PNG — output is always PNG. The changes are completely invisible to the human eye, making your secret data undetectable.

    All encryption happens in your browser using the Web Crypto API. Your encryption keys and messages never touch our servers, ensuring true zero-knowledge privacy.

    Powerful Features

    Unlimited capacity, all formats, Zero-Knowledge

    Client-Side Encryption

    Strong encryption happens entirely in your browser. Zero server access to your data.

    Invisible Embedding

    Your data is hidden invisibly inside image pixels. No one can tell it's there.

    All file Formats

    Supports All file formats, hide as much as the image can hold.

    Zero-Knowledge

    We never see your keys, messages, or files. Complete privacy by design.

    How It Works

    Simple 3-step process to hide your secrets

    Step 1

    Upload & Select

    Select any image as carrier (JPG, JPEG, and PNG) and choose what to hide: a text message or any file (PDF, DOCX, ZIP, etc.)

    Step 2

    Encrypt & Hide

    Your data is encrypted end-to-end and hidden invisibly inside the image pixels. File type and name are automatically preserved. Works with all file formats.

    Step 3

    Download & Share

    Download the image and share it anywhere. Only those with the key can decode it.

    Use Cases

    Secure Communication

    Send confidential messages without raising suspicion. Perfect for journalists, activists, and privacy advocates.

    Digital Watermarking

    Embed copyright information or metadata invisibly in your images for protection.

    Password Storage

    Store sensitive passwords or recovery codes in an innocent-looking image file.

    Data Exfiltration

    Bypass content filters by hiding data in images for legitimate backup purposes.

    Explore All Free Tools

    Browse our full collection of tools.

    SanTools

    Privacy-first online tools that run entirely in your browser. Forever free.

    Tools

    • Steganography Tool
    • Background Remover
    • ZIP Password Remover
    • → All Tools

    Resources

    • Documentation
    • Security
    • FAQ

    Support

    • Trakteer
    • Privacy Policy
    • Terms of Service

    © 2026 SanTools by mrsan. All rights reserved.

    |