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Free Online Caesar Cipher

Shift Latin letters by an integer offset. This historical cipher provides no modern confidentiality.

Your input stays on this device. Processing is bounded; regex runs in a worker with a two-second timeout.

Result



How to use Caesar Cipher
Shift Latin letters by an integer offset. This historical cipher provides no modern confidentiality.
  1. Set Text.
  2. Set Shift.
  3. Run the tool, review the result and its stated limitations, then copy or download if needed.
Example & practical use
Shift Latin letters by an integer offset. This historical cipher provides no modern confidentiality. The example below demonstrates Text; Shift.
Example input:
{
  "text": "Abz",
  "shift": 1
}
Expected result (relevant fields):
"Bca"
Features & result limitations
Shift Latin letters by an integer offset. This historical cipher provides no modern confidentiality.
Frequently asked questions
What inputs does Caesar Cipher accept?
Text; Shift
How should I interpret the Caesar Cipher result?
Shift Latin letters by an integer offset. This historical cipher provides no modern confidentiality.
Where does Caesar Cipher process my data?
Inputs are processed locally in your browser. Submitted text is not sent to external services. A successful-run event increments an aggregate tool counter without your input.