ROT47 Encoder / Decoder Online Free
Encode and decode text with the ROT47 Caesar cipher rotation.
ROT47 rotates all 94 printable ASCII characters (! through ~) by 47 positions. Applying it twice returns the original text — so encode and decode are the same operation.
What is ROT47 Encoder / Decoder?
ROT47 is a Caesar cipher that rotates all 94 printable ASCII characters (! through ~) by 47 positions. Unlike ROT13 which only affects letters, ROT47 also rotates digits, punctuation, and symbols. Since it is symmetric, the same operation encodes and decodes.
Common Use Cases
Obfuscating text for puzzles and games, CTF challenges, basic text encoding, learning about cipher algorithms, and creating simple secret messages.
How It Works
Each character with ASCII code between 33 (!) and 126 (~) is rotated by 47 positions within that range: code = ((code - 33 + 47) % 94) + 33.
Frequently Asked Questions
Is ROT47 the same as ROT13?
No. ROT13 only rotates letters (A-Z) by 13. ROT47 rotates all 94 printable ASCII characters by 47. ROT13 is a special case of Caesar cipher for letters only.
Is ROT47 reversible?
Yes — applying ROT47 twice returns the original text, so the same tool encodes and decodes.
Related Tools
ROT13 Encoder / Decoder
Apply ROT13 cipher to encode or decode text instantly.
Binary Text Converter
Convert text to binary (01010100...) or binary back to text.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text.
Text to Hex Converter
Convert text to hexadecimal encoding or decode hex back to readable text.