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Hide Text Inside Image - Online Image Steganography

Free online image steganography tool to hide text or data inside images securely using LSB encoding. Supports AES encryption, real-time preview, browser-based processing, and stego image download. No data is stored—privacy guaranteed.

Steganography is a technique used to hide information inside another file so that its existence remains invisible. Unlike encryption , which protects the content itself, steganography conceals the presence of the data entirely.

This online image steganography tool embeds secret text or data directly into an image using Least Significant Bit (LSB) manipulation. The resulting image looks identical to the original while securely carrying hidden information, making it useful for private communication, watermarking, and data protection.

🖼️ Embed Text

PNG recommended. Capacity = pixels × 3 channels × 1 LSB.
preview
Capacity: {{vm.capacityBytes || 0}} bytes
Message size: {{vm.messageBytes || 0}} bytes
Message too large for selected image.
{{vm.embedMsg}}
{{vm.embedError}}

🔍 Extract Text

preview
{{vm.extractError}}
Hidden message: 
{{vm.extractedText}}

You can use our online password vault tool to securely store your text for free.

We do not store or log any image, message, or key you enter. This tool is intended for personal and educational use only. We strongly recommend not using online tools to protect real production secrets.

Image Steganography – Tool Overview

Our free Image Steganography Tool lets you securely hide secret text or data inside an image without changing its visible appearance. Using advanced LSB (Least Significant Bit) steganography combined with AES encryption, your message remains invisible and extremely difficult to extract without the correct key.

If you need stronger protection where the image itself should not be viewable, you can also use our Image Encryption & Decryption Tool , which completely encrypts the image instead of hiding data inside it.

Everything runs directly inside your browser — no uploads, no tracking, and no server-side storage. This tool is designed for users who value privacy, anonymity, and strong client-side security.

You can use this tool to hide text inside an image, embed secret data, or protect sensitive information from casual inspection. The generated image looks completely normal in photo viewers, messaging apps, and galleries, making it suitable for discreet communication.

✨ Key Features of Our Steganography Tool

  • 100% Client-Side Processing – No images or messages are uploaded or stored
  • AES Encryption secures your message before embedding
  • Real-time Image Preview before hiding your text
  • Supports PNG and JPG image formats
  • Automatic Stego Image Download with original filename preserved
  • Easy Text Extraction using the extract tab
  • Fast, lightweight, and privacy-focused

🛠 How Does It Work?

  1. You upload an image (PNG or JPG)
  2. Enter your secret message and encryption key
  3. The message is encrypted using AES encryption
  4. The encrypted data is hidden inside image pixels using LSB manipulation
  5. You download the new image (stego file)
  6. Only someone with the correct key can extract and decrypt the hidden data

🧩 Use Cases

  • Protect sensitive or private messages
  • Share secret codes or credentials discreetly
  • Send notes that avoid detection by automated scanners
  • Digital watermarking and copyright marking
  • Cybersecurity research and academic learning

Images created using this tool can be safely stored in Android gallery apps or shared through messaging platforms without revealing the hidden content. The embedded data remains invisible unless extracted using the correct secret key.

🌐 Why This Tool Is Safe

Unlike online steganography tools that upload images to their servers, this tool performs all operations locally in your browser.

  • No server storage
  • No logging or tracking
  • No message retention
  • No third-party processing
  • Everything exists only in your browser’s memory

Once you close or refresh the page, all temporary data is wiped automatically.

For additional privacy, you may also want to inspect or remove hidden metadata from your images. Use our Image EXIF Metadata Viewer to check camera details, GPS location, and other embedded information before sharing images online.

Frequently Asked Questions

No. All encryption and steganography operations happen in your browser. We do not store images, messages, or encryption keys.

The tool supports PNG and JPG/JPEG image formats, which are well-suited for LSB-based steganography.

Visually, no. The image appears unchanged. Even if steganography is suspected, the encrypted data cannot be decrypted without the correct key.

Yes. Messages are encrypted using AES before being embedded. Extracted raw data is unreadable without the encryption key.

No visible quality change occurs. Only the least significant pixel bits are modified, which is imperceptible to the human eye.

Yes. This tool allows you to hide text inside an image using LSB steganography. The hidden message remains invisible and can only be extracted using the correct key.

This tool is optimized for hiding encrypted text or data inside images. Hiding full images inside other images typically requires specialized steganography formats.

Support This Free Tool!

I build these tools to give you fast, secure, privacy-friendly utilities—free and signup-free.

Buying me a coffee helps keep the project running and supports new features.

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