Password & Text Encryption Utility

About the AES Encryption Utility

This tool allows you to encrypt text messages, passwords, or other sensitive information using the industry-standard AES (Advanced Encryption Standard) algorithm directly in your web browser. You provide the text and a secret key (your password), and the tool generates the encrypted output (ciphertext) as Base64 encoded text. You can also decrypt previously encrypted ciphertext if you provide the exact same secret key.

How to Use:

1. Enter Data: Type or paste the text you want to encrypt (plaintext) or decrypt (ciphertext) into the left-hand text box ("Text to Encrypt / Decrypt"). If decrypting, ensure the text is the Base64 output from a previous encryption using this tool or compatible AES encryption.
2. Enter Secret Key: Type a strong, unique password into the "Secret Key / Password" field. This key is used for both encryption and decryption. Memorize or securely store this key - it is vital!
3. Choose Action: Click the "Encrypt" button if you entered plaintext, or the "Decrypt" button if you entered ciphertext.
4. View Result: The encrypted ciphertext (Base64 encoded) or the decrypted plaintext will appear in the right-hand "Result" text box.

Important Security Considerations:

• Key Security is Paramount: The security of AES encryption relies entirely on the strength and absolute secrecy of your key. Use a long, random, and unique key for sensitive data. **If you forget or lose the key, the encrypted data is irrecoverable.** Do not share the key unless the recipient also needs to decrypt the data.
• Client-Side Encryption: All cryptographic operations (encryption and decryption) are performed locally within your browser using JavaScript libraries (CryptoJS). Your secret key and the plaintext version of your data are **never transmitted** over the internet or stored on our servers, ensuring privacy from us.
• Intended Use Cases: This tool is suitable for basic text protection, such as temporarily storing sensitive notes on your own device or sending mildly confidential information through channels where end-to-end encryption isn't readily available (use with caution).
• Not a Replacement For: This utility is **NOT** a substitute for robust security solutions like HTTPS for website communication, PGP/GPG for secure email, end-to-end encrypted messaging apps (like Signal or WhatsApp), full-disk encryption for device security, or professional password managers for storing login credentials.
• AES Algorithm: We utilize AES, a symmetric-key algorithm globally recognized and trusted for its security when implemented correctly and used with strong keys.