Beaufort Cipher
Encrypt and decrypt text using the Beaufort cipher, a polyalphabetic substitution cipher similar to Vigenère. The Beaufort cipher is reciprocal — applying it twice with the same key returns the original text.
How to Use Beaufort Cipher
Enter your text and a key (letters only). Click Apply Beaufort Cipher to encrypt or decrypt. The Beaufort cipher is reciprocal, so applying it twice with the same key returns the original text.
Step-by-Step Instructions
- Enter the text you want to encrypt or decrypt
- Enter a key using only letters (e.g. SECRET)
- Click Apply Beaufort Cipher to process
- Copy the result — apply again with same key to reverse
Related Tools
Word Counter
Count words, sentences, paragraphs, and characters in any text.
Character Counter
Count characters with and without spaces and track character limits.
Case Converter
Convert text between uppercase, lowercase, title case, and sentence case.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text with 1 to 50 paragraphs.