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🔄 ROT47 Cipher

ROT47 cipher for ASCII printable characters with 0-93 shift, self-inverse detection, brute-force attack, and ASCII frequency analysis

ROT47 shifts ASCII printable characters (codes 33 to 126, 94 chars total). ROT47 (shift=47) is self-inverse: ROT47(ROT47(x)) = x. All processing runs locally in your browser.
Direction
▶ Brute Force (All 94 Shifts)
▶ ASCII Character Frequency Analysis
Enter text to see ASCII character frequency distribution (top 20).

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Free online ROT47 encrypt and decrypt tool for ASCII printable characters (! through ~, 94 chars total). Features 0-93 shift slider, ROT47 (shift=47, self-inverse) and ROT5 presets, brute-force attack with chi-squared intelligent ranking for all 94 shifts, and ASCII character frequency analysis. One-click input/output swap to verify reversibility. Real-time 200ms response. All processing runs locally in your browser — input data is not uploaded by the tool. Perfect for code obfuscation, CTF competitions, learning cryptography, and developers.