Tool Introduction

Our Encrypt / Decrypt Text tool is a powerful, free online utility that allows you to encrypt plain text and decrypt ciphertext using various cryptographic algorithms. Whether you need to secure sensitive information, protect messages, or learn about encryption, this tool provides a simple and secure way to encrypt and decrypt text. With support for multiple algorithms (AES, TripleDES, Rabbit, RC4) and complete privacy (all processing happens in your browser), you can safely encrypt and decrypt text without worrying about your data being transmitted to servers.

How to Use Encrypt / Decrypt Text

• Encrypt Text: Enter your plain text in the "Your text" field, provide a secret key, select an encryption algorithm (AES recommended), and the encrypted result will appear automatically
• Decrypt Text: Paste your encrypted text in the "Your encrypted text" field, enter the same secret key used for encryption, select the matching algorithm, and the decrypted text will appear automatically
• Choose Algorithm: Select from AES, TripleDES, Rabbit, or RC4. AES is recommended for most use cases
• Use Strong Keys: Create a strong, unique secret key. The same key must be used for both encryption and decryption
• Keep Keys Safe: Store your secret keys securely. Without the correct key, encrypted text cannot be decrypted
• Real-Time Processing: Encryption and decryption happen automatically as you type or change settings

Key Features

• Multiple Algorithms: Support for AES, TripleDES, Rabbit, and RC4 encryption algorithms
• Side-by-Side Interface: Encrypt and decrypt sections displayed side-by-side for easy workflow
• Real-Time Processing: Automatic encryption and decryption as you type or modify settings
• Secret Key Management: Easy-to-use key input fields with clear buttons for both sections
• 100% Private: All encryption and decryption happens locally in your browser - no data sent to servers
• Algorithm Selection: Choose the encryption algorithm that best fits your needs
• Error Handling: Clear error messages if decryption fails due to wrong key or algorithm
• Monospace Display: Encrypted text displayed in monospace font for better readability
• No Registration Required: Start encrypting and decrypting immediately without any sign-up
• Secure Implementation: Uses industry-standard crypto-js library for reliable encryption

Encryption Best Practices

• Use Strong Keys: Create long, complex secret keys with a mix of letters, numbers, and symbols
• Keep Keys Secure: Never share your secret keys. Store them securely using password managers
• Use AES: For most applications, AES is the recommended algorithm due to its security and performance
• Match Keys and Algorithms: Always use the same key and algorithm for encryption and decryption
• Test Decryption: Always test that you can decrypt your encrypted text before relying on it
• Backup Keys: Keep secure backups of your keys. Lost keys mean lost data
• Consider Key Length: Longer keys generally provide better security
• Use Unique Keys: Use different keys for different purposes or data sets

Use Cases

• Secure Messages: Encrypt sensitive messages before sharing them through less secure channels
• Data Protection: Encrypt sensitive text data before storing it in less secure locations
• Learning: Understand how encryption and decryption work with different algorithms
• Testing: Test encryption functionality in applications and systems
• Privacy: Protect personal information or private notes with encryption
• Development: Generate encrypted test data for development and testing purposes
• Communication: Encrypt messages for secure communication when other secure channels are not available
• Documentation: Encrypt sensitive documentation or notes