AES Text – Encryptor / Decryptor – Offline use:

Use a browser to work with it. No LAN/Wifi needed. 

•  This code provides a browser-based tool for encrypting and decrypting text using AES (Advanced Encryption Standard), allowing users to work offline. 
•  The interface consists of fields for entering an encryption key (recommended length: 8 / 16 / 32 characters) and the text to be encrypted or decrypted, along with buttons to trigger the encryption / decryption.
•  When a user enters their key and text, they can click "Encrypt" to produce encrypted output or "Decrypt" to restore the original plaintext, with results shown in an output area.
•  The CryptoJS library, included in the script, handles the actual cryptographic operations in the browser, ensuring that all processing occurs locally and securely. This approach ensures no data is sent to servers, making it suitable for privacy-focused or offline use cases such as secure messaging or confidential note-taking.