Caesar Cipher — Encrypt, Decrypt & Auto-Detect Shift Cipher

Cách dùng

1. 1 Pick Encrypt, Decrypt, or Auto-decrypt mode.
2. 2 For Encrypt/Decrypt, choose a shift (1–25).
3. 3 For Auto-decrypt, the tool tries all 25 shifts and picks the one closest to English letter frequencies.
4. 4 Copy the result.

Vì sao dùng công cụ này

• Configurable shift 1–25.
• Auto-decrypt uses chi-squared scoring against English letter frequency.
• Preserves case, digits, punctuation, whitespace.
• Educational tool for cryptography classes.

Câu hỏi thường gặp

Caesar Cipher là gì?

A Caesar Cipher is a tool that encrypts and decrypts text using the classic Caesar shift cipher, replacing each letter with one a fixed number of positions away in the alphabet. It runs entirely in the browser and includes an auto-detect mode that uses English letter frequency to recover the likely shift, making it useful for decoding classical ciphers without knowing the key.

Công cụ liên quan