JCC: Online Caesar Cipher Calculator

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J. Caesar Cipher

OUTPUT

SETTING & TRIGGER

ROT

INPUT

JCC

This is a pure frontend (browser) application.

How to Use

This only shifts/rotates Latin (English) alphabets (A to Z and a to z), 26 letters (52 — uppercase and lowercase).

  1. First, select the method (encrypt/decrypt).
  2. Type how many rotations (character shift) you want.
  3. Type/paste your text. The input is on the bottom (update Dec 24, 2015).
  4. RUN button will be enabled. Click it to see the result.
  5. There is another additional button to show all rotations on the bottom (update Dec 21, 2015). Use it to show all shifts.

For distracting you, Mr. Julius' caricature will rotate itself.

Rotations

Minimum 1 and 25, max. ROT1 to ROT25, forward or backward.

It works like so:

  • Encrypt: ROT1 or 1 shift forward

    The letter A or a becomes B or b.
    Letter Z or z becomes A or a.
    Letter V or v becomes W or w.
    And so on.

  • Decrypt: ROT1 or 1 shift backward

    The letter A or a becomes Z or z.
    Letter Z or z becomes Y or y.
    Letter V or v becomes U or u.
    And such.

Mirrors:

  • Encrypt ROT1 is equivalent to Decrypt ROT25
  • Encrypt ROT2 is equivalent to Decrypt ROT24
  • Encrypt ROT3 is equivalent to Decrypt ROT23
  • Encrypt ROT4 is equivalent to Decrypt ROT22
  • Encrypt ROT5 is equivalent to Decrypt ROT21
  • Encrypt ROT6 is equivalent to Decrypt ROT20
  • et cetera

As you can see, it is the sum of the total letters, 26.

JULIUS CAESAR