100% Private & Secure

Hide Your Secrets
In Plain Sight

Embed invisible watermarks into your images using advanced LSB steganography. Protect your creative work, prove ownership, or send hidden messages — all processed locally in your browser.

Invisible to Human Eye
SHA-256 Encryption
No Server Upload
Get Started Free See How It Works
256-bit Encryption
100% Free Forever
0 Data Collected
Your Image
Watermarked
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Watermark Tool

Embed or extract hidden watermarks from your images

Click to upload or drag & drop

JPG, PNG (max 5MB)

0 / 1000 characters
Watermark Strength:
Enter watermark text
Info: Upload the watermarked image to extract the hidden message

Click to upload or drag & drop

Real-World Applications

Copyright Protection

Artists and photographers embed their identity into images to prove ownership and prevent unauthorized use of their work.

Content Authentication

News agencies and forensic experts use watermarks to verify that images haven't been tampered with or manipulated.

Medical Imaging

Patient information and diagnosis data can be embedded in medical scans for secure record-keeping and privacy protection.

Digital Rights Management

Media companies track distribution of movies, music, and e-books to identify unauthorized copies and leaks.

0
Bit Encryption
0
% Invisible
0
Max Characters
0
MB Max Size

The Process

See the simple 4-step process to protect your images with invisible watermarks

1

Select Image

Upload your JPG or PNG image (max 5MB)

2

Add Watermark

Enter your text (up to 1000 characters)

3

Secure (Optional)

Add SHA-256 encryption for extra protection

4

Download

Get your watermarked image instantly

LSB Steganography Visualization

How LSB Steganography Works?

This tool uses Least Significant Bit (LSB) steganography to hide your watermark in plain sight.

  • Imperceptible Changes: Only the last bit of each color channel is modified, resulting in changes of ±1 in RGB values (e.g., 128 becomes 127 or 129).
  • Binary Encoding: Your watermark text is converted to binary and distributed across thousands of pixels.
  • Length Header: The first 16 bits store the message length, allowing perfect reconstruction during extraction.
  • Optional Encryption: Add SHA-256 password protection to prevent unauthorized extraction.

How It Works