ROT47 Encoder Decoder - ROT47 Cipher Tool Online

ROT47 is a simple character substitution cipher that replaces each printable ASCII character with the character 47 positions after it in ASCII table. It's an extension of ROT13 that works on all printable ASCII characters (not just letters).

How ROT47 Works:

• Character Range: Operates on ASCII 33-126 (all printable characters including symbols)
• Rotation: Each character is shifted by 47 positions (half of 94 printable chars)
• Symmetric: Applying ROT47 twice returns the original text
• Preserves Format: Character positions and line breaks remain unchanged

⚠️ Security Warning:

ROT47 is NOT secure encryption! It's a simple obfuscation technique. Do not use it for:

• Protecting sensitive data or passwords
• Security-critical applications
• Compliance requirements (GDPR, HIPAA, PCI-DSS)

Legitimate Use Cases:

• Spoiler Protection: Hide plot twists in forums/reviews
• Email Obfuscation: Hide emails from basic scrapers (not security)
• Cache Busting: Simple obfuscation in URLs or config files
• Geocaching: Hide hints and coordinates
• Light Obfuscation: Prevent casual reading of non-sensitive data

For Real Security, Use:

• AES Encryption: For encrypting sensitive data
• Bcrypt/Argon2: For password hashing
• TLS/SSL: For secure network transmission

Client-side only: All ROT47 encoding and decoding is performed locally in your browser using JavaScript. No text is sent to any server. Your content remains completely private.