Encryption Tools

Our collection of free and secure online encryption and decryption tools. All tools process data directly in your browser - your information never leaves your device.

Classical Ciphers

Historical encryption methods that have laid the foundation for modern cryptography.

Caesar Cipher

A simple substitution cipher where each letter is shifted by a fixed number of positions.

Vigenère Cipher

A polyalphabetic substitution cipher that uses a keyword to determine multiple shift values.

ROT13

A special case of the Caesar cipher with a fixed shift of 13 places, commonly used to hide spoilers.

Modern Encoding

Contemporary encoding and hashing methods used in various applications.

Base64

Convert binary data to ASCII text format, commonly used for email attachments and data URLs.

MD5 Hash

Generate a 128-bit hash value from text input. Used for data integrity verification.

Password Generator

Create strong, random passwords with customizable settings for optimal security.

About Encryption

Encryption is the process of converting information into a code to prevent unauthorized access. It's a fundamental aspect of cybersecurity, ensuring that sensitive data remains confidential during transmission and storage.

There are two main types of encryption:

Symmetric encryption uses the same key for both encryption and decryption.
Asymmetric encryption uses a pair of keys: a public key for encryption and a private key for decryption.

While our tools offer a practical way to learn about and use various encryption methods, it's important to note that classical ciphers (like Caesar and Vigenère) are not suitable for securing truly sensitive information. For critical data, always use modern encryption standards like AES, RSA, or ECC.