Batch Hide Data in PNG
Conceal secret messages inside your images using advanced steganography. Protect your sensitive information with optional encryption, all processed locally in your browser.
Drop your images here
Supports PNG, JPG, WebP, AVIF. Note: Using JPG may lose hidden data due to compression.
Try with Examples
Loaded Gallery
Steganography Studio
Image List
| Preview | Image Info | Original | Status | Action |
|---|
Steganography Editor
Message Settings
Batch Apply
Same message for all images
Why Choose Our PNG Steganography Tool?
The most secure and intuitive way to hide messages inside images with zero footprint.
Ultimate Privacy
Your secret data and images never leave your browser. Everything is processed locally using JavaScript, ensuring that no third party or server ever sees your hidden messages.
Strong Encryption
Optionally protect your hidden messages with an encryption key. Even if someone knows the image contains data, they won't be able to read it without the correct password.
Batch Steganography
Need to hide the same message across multiple images? Or extract data from a folder of images? Our tool handles bulk operations seamlessly and efficiently.
How to Hide Data in 3 Steps
Upload Your Image
Drag and drop the PNG or WebP images you want to use as carriers. High-resolution images can hold more data.
Enter Secret Message
Type your secret message and set an optional password. The tool uses LSB steganography to weave bits into pixels.
Save Encoded Image
Download the resulting image. It will look identical to the original but contains your secret data inside.
Frequently Asked Questions
Will the image look different after hiding data?
No. We use Least Significant Bit (LSB) steganography, which modifies the color values so slightly that the human eye cannot perceive any difference. The carrier image remains visually identical.
How much data can I hide in an image?
The capacity depends on the image resolution. Each pixel can store 3 bits of data (one bit per RGB channel). For example, a 1080p image can hide over 700KB of raw text data.
Can I hide data in a JPG?
While you can upload a JPG, it is highly recommended to export as PNG. JPG compression is "lossy," meaning it discards pixel data to save space, which will likely destroy the hidden message bits.