🔐VigenèreTool

0
Keys checked
Best χ²
?
Key length
100% client-side

📥 Ciphertext Input

Ready to crack (works best with 100+ letters)
Kasiski + Index of Coincidence + χ² frequency analysis

📊 Results & Analysis

🏆 BEST DECRYPTION
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📈 Frequency Match
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🔑 Top 10 Key Guesses
Sorted by χ² score (lower=better)

🔑 Known Key Decrypt

Ready to decrypt

📤 Decryption Result

🔓 Plaintext
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🔐 Encrypt Plaintext

Ready to encrypt

📤 Encryption Result

🔐 Ciphertext
Enter plaintext above
🔑 Current Key
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