ROT47 is a substitution cipher, similar to ROT13. However, instead of just rotating letters, ROT47 rotates *all* printable ASCII characters from ASCII 33 (!) to 126 (~). It 'rotates' them by 47 positions. For example, 'A' becomes 'p', 'a' becomes '2', and '1' becomes 'h'.

What is the difference between ROT13 and ROT47?

ROT13 *only* affects the 26 letters of the alphabet (A-Z, a-z). ROT47 affects all 94 printable ASCII characters, including letters, numbers, and symbols. This makes ROT47 text look much more 'encrypted' or 'scrambled' than ROT13 text.

No. Like ROT13, ROT47 provides **zero security**. The key is always 47, so anyone can reverse it instantly. It is a tool for *obfuscation* (hiding text from a casual glance), not *encryption* (protecting text from an attacker). For security, use AES.

How do you decrypt ROT47?

You use the exact same ROT47 function. The set of printable ASCII characters is 94 characters long. 47 is exactly half of 94. Because of this, applying ROT47 twice (47 + 47 = 94) performs a full rotation and brings you back to the original text. It is its own inverse, just like ROT13.

ROT47 Translator (ASCII Shift Cipher)

Obfuscate text, numbers, and symbols with ROT47.

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What is ROT47 (Rotate by 47)?

**ROT47** is a simple substitution cipher, like ROT13. However, it's more comprehensive. While ROT13 only rotates the 26 letters of the alphabet, ROT47 rotates *all* printable ASCII characters.

How it Works: ROT47 operates on the 94 characters in the ASCII range from 33 (`!`) to 126 (`~`). It takes a character and replaces it with the character 47 positions after it, wrapping around the end of the range.

The "key" or **shift** is always 47.
47 is exactly half of 94, which means ROT47 (like ROT13) is **its own inverse**.
Applying the ROT47 algorithm twice returns the original text.

ROT47 vs. ROT13:

**ROT13:** Hello → Uryyb (Only letters change)
**ROT47:** Hello, 123! → w6==@D[ @7c] (Letters, numbers, and symbols all change)

Is ROT47 Secure?
**No. It provides zero security.** It is not encryption, but **obfuscation**. Because the key is public (it's *always* 47), anyone can instantly reverse it. It makes text unreadable to a casual glance, but it provides no real protection.

Its main purpose is to "scramble" text that includes numbers and symbols, which ROT13 would leave untouched.

ROT47 Examples

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ROT47 Key Concepts & Best Practices

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Obfuscation, Not Encryption

ROT47 is **not security**. It's a "toy" cipher for scrambling text. The key is public knowledge. Never use it to protect sensitive data. For real security, you must use **AES** (Advanced Encryption Standard).

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Encrypt = Decrypt

The most unique feature of ROT47 is that it's its own inverse. The function to encode text is the *exact same* as the function to decode it. This is because 47 is half of the 94-character set (47 + 47 = 94), a full rotation.

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Full Printable ASCII

The main difference from ROT13 is the character set. ROT47 rotates everything from the exclamation mark `!` to the tilde `~`. This includes all letters `(A-Z, a-z)`, numbers `(0-9)`, and common symbols `(!@#$%^&...)`.