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img-cipher: Secure Image Encryption & Decryption in the Browser

Overview

img-cipher is a lightweight, client-side web app built with React for securely encrypting and decrypting images directly in your browser. It uses modern cryptographic methods and works entirely offline — no servers, no tracking, no image uploads.

Features

• 🔐 AES-256 encryption to securely encode image data
• 🔁 Base64 encoding to represent binary data as safe text
• 🧠 Client-side only — your images and passwords never leave your device
• 📱 Responsive design for seamless use on desktop and mobile
• 🧩 Simple, minimal UI with Material UI icons
• 🧾 Password-protected encryption with optional decryption toggle
• 🛠️ No backend or cloud storage required
• ✅ Open source under the MIT License

🧪 How It Works

• Encoding:
  The image is read as binary, converted to Base64 text, then encrypted using AES (via crypto-js). The encrypted text can be saved as a .txt file.

• Decoding:
  A .txt file is decrypted using the provided password, decoded from Base64, and converted back into the original image.

Installation & Setup

Clone the repository and install dependencies:

git clone https://github.com/siddharthaasal/img-cipher.git
cd img-cipher
npm install

Running Locally

Start the development server:

npm run dev

Open http://localhost:5173 in your browser.

Usage

• Navigate to Encode to upload and encrypt images with a password.
• Go to Decode to decrypt previously encrypted images by entering the correct password.
• Your images never leave your device — all processing happens client-side.

License

This project is licensed under the MIT License.

Contributing

Contributions, issues, and feature requests are welcome! Feel free to open a pull request or issue.