Maskoot

Hide text and files inside images without changing their appearance.

🌍 مشاهده نسخه فارسی

🚀 Live Demo: https://maskoot.ir

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About

Maskoot is a free and open-source steganography tool that allows you to hide text messages and files inside PNG images.

The hidden content can optionally be encrypted using AES-256-GCM and is processed entirely in the browser using the Web Crypto API.

No files, passwords, or messages are stored on the server.

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Features

• Hide text inside PNG images
• Hide any file inside PNG images
• Optional AES-256-GCM encryption
• PBKDF2 key derivation
• SHA-256 integrity verification
• PNG and JPG input support
• Automatic JPG → PNG conversion
• Extract hidden content from images
• Fully client-side cryptography
• Persian and English interface
• Responsive UI
• Open source

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Security

Maskoot uses modern cryptographic standards:

• AES-256-GCM encryption
• PBKDF2 with 100,000 iterations
• SHA-256 integrity fingerprint
• Web Crypto API
• HTTPS communication

All sensitive operations are performed inside the browser.

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How It Works

1. Select an image.
2. Choose Text or File mode.
3. Optionally enter a password.
4. Generate the encoded image.
5. Share or store the generated PNG.
6. Upload the image later to recover the hidden content.

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Technology Stack

• JavaScript (ES Modules)
• Cloudflare Workers
• Web Crypto API
• HTML5
• CSS3
• OffscreenCanvas
• PNG Chunk Manipulation

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Live Demo

https://maskoot.ir

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License

MIT License

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Author

Radmehr

GitHub: https://github.com/radmehr2025

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