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KlockBase

Text Encrypt & Decrypt

Text Tools

Encrypt & decrypt text

About Text Encrypt & Decrypt

Encrypt and decrypt text with AES-256 encryption.

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Frequently Asked Questions

What encryption algorithm is used?
This tool uses AES-GCM (Advanced Encryption Standard with Galois/Counter Mode) with a 256-bit key derived from your password using PBKDF2 with 100,000 iterations.
How secure is this encryption?
AES-256 is a military-grade encryption standard used worldwide. The security depends on the strength of your password. Use a long, unique password with mixed characters for best protection.
Can I decrypt without the exact password?
No. The encrypted text can only be decrypted with the exact same password that was used to encrypt it. If you lose the password, the data cannot be recovered.
Is my data safe?
Yes! All encryption and decryption happens entirely in your browser using the Web Crypto API. Your text and password are never sent to any server. No data is collected, stored, or transmitted.
What is the output format?
The encrypted output is a Base64-encoded string that includes the salt, initialization vector (IV), and ciphertext. You can safely copy and share this string; only someone with the password can decrypt it.
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