Text Encryption & Decryption
Simple ciphers for fun and learning
Encrypt and decrypt text using classical ciphers. Perfect for puzzles, games, and learning about cryptography.
⚠️ These are simple ciphers for educational purposes only. Do NOT use for sensitive data!
Cipher Method
Input (Plain Text)
0 characters
Output (Encrypted)
0 characters
Caesar Cipher
One of the oldest and simplest ciphers. Each letter is shifted by a fixed number of positions in the alphabet.
Example: With shift 3, "ABC" becomes "DEF"
ROT13
A special Caesar cipher with shift of 13. Applying ROT13 twice returns the original text.
Uses: Spoilers, puzzle hints, simple obfuscation
Base64
Encodes binary data using 64 printable ASCII characters. Not encryption, but encoding.
Uses: Email attachments, data URLs, web tokens
Atbash Cipher
Ancient Hebrew cipher that reverses the alphabet. A↔Z, B↔Y, C↔X, etc.
Example: "HELLO" becomes "SVOOL"
Reverse Text
Simply reverses the order of characters in the text. Easy to decode but fun for puzzles.
Example: "HELLO" becomes "OLLEH"
⚠️ Security Notice
These ciphers are NOT secure for protecting sensitive information.
Use for: Learning, puzzles, games
Don't use for: Passwords, personal data, secrets
Use Cases
Educational
Learn about cryptography history and basic cipher techniques. Great for teaching encryption concepts.
Puzzles & Games
Create treasure hunt clues, escape room puzzles, or riddles using simple ciphers.
Spoiler Protection
Hide movie spoilers or game hints with ROT13 in forums and discussions.
Data Encoding
Use Base64 to encode data for URLs, JSON, or text-based transmission.
Related Tools
Explore more tools that might help you