Caesar Cipher Encoder Decoder
Encode or decode text using the classic Caesar cipher with adjustable shift values. Encrypt messages by rotating letters forward or decrypt by shifting backward.
This tool processes all data locally on your device.
Input
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Output
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Readme
What is the Caesar cipher?
The Caesar cipher is a substitution technique that rotates each letter of the alphabet by a fixed number of positions. It illustrates the foundation of classical cryptography, showing how simple shifts can conceal messages and how frequency analysis can reveal them again. While it offers no real security today, it remains a useful teaching tool and a fast way to obfuscate text.
Tool description
Encode or decode text with a configurable shift from 0 to 25 using the caesar-salad library. Letters are rotated while numbers, punctuation, and spacing stay untouched, making the results easy to read.
Features
- Adjustable shift slider with clamped values between 0 and 25
- Instant encoding and decoding powered by the caesar-salad implementation
- Preserves punctuation, digits, and whitespace while rotating letters
- Supports both uppercase and lowercase characters without extra steps
Use Cases
- Demonstrating substitution ciphers in classrooms or workshops
- Decoding simple puzzle clues or escape-room hints
- Quickly obfuscating snippets in notes, prototypes, or handouts
- Verifying homework or self-study exercises on Caesar cipher decoding
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Disclaimer
The tools provided on this website are designed to assist users in solving various problems. While we strive to ensure that the tools are accurate and effective, we do not guarantee or warrant that the output of any tool will be 100% accurate or error-free. The results generated by these tools are provided as-is and should be used with caution. We recommend that users verify any important information or results with additional resources or professional advice, as we cannot be held responsible for any consequences arising from the use of these tools. By using this website, you agree to assume all risks associated with the accuracy and use of the results provided.
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