How do I use the Rail Fence Cipher?

Paste your rail-fence input on the left and click Run — results appear instantly on the right. Click "Try Sample" to load an example that demonstrates what the Rail Fence Cipher does. Copy the output with the button above the panel, or download it as a file with the icon next to it. Related keywords: rail-fence, transposition. If you're looking for a specific variant, check the Related tools strip below.

What can I use the Rail Fence Cipher for?

Quick rail-fence transformations during development Debugging production payloads without leaving the browser Generating sample data for tests, demos, and documentation Sharing reproducible tool output with teammates

Is the Rail Fence Cipher free and private?

Yes — it runs in your browser, requires no signup for basic use, and your data never leaves your device. Modern cryptographic primitives like AES-256 and SHA-256 are considered safe against classical computers for the foreseeable future.

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Rail Fence Cipher

Transposition cipher in a zig-zag pattern across N rails — enc/dec

1 credit

Line 1: rails=N op=enc|dec — then body

Ciphertext

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