Rail Fence Cipher
Encode and decode text with adjustable rails to explore zigzag transposition ciphers.
FreeBrowserAbout Rail Fence Cipher
Encode text along a zigzag rail pattern or decode a rail fence message. Experiment with the rail count to understand how character transposition changes the message order.
When to use this tool
- Demonstrate a transposition cipher.
- Experiment with rail counts for a word puzzle.
Limits to know before using it
This is an educational cipher, not secure encryption. Spaces and punctuation participate in the pattern, so adding or removing them changes the result.
Data handling and cost
The main operation runs in your browser; tool input is not uploaded for processing. The site can still use session cookies and collect operational or usage data as described in the privacy policy.
Free to use in your browser, with no sign-in needed.
Frequently Asked Questions
No. Rail fence is a classical transposition cipher for education and puzzles, not modern security.
Rails are the number of zigzag rows used to route characters before reading row by row. More rails change the transposition pattern.
No. The tool preserves every character exactly as typed, including spaces and punctuation.