Secure Note Encryptor
Encrypt and decrypt text notes using AES-256 encryption in your browser. Your data never leaves your device. Free secure note tool.
How It Works
- Algorithm: AES-GCM with 256-bit key (authenticated encryption)
- Key Derivation: PBKDF2 with 100,000 iterations and SHA-256
- Salt: 16 random bytes (unique per encryption)
- IV: 12 random bytes (unique per encryption)
- Output: Base64-encoded (salt + IV + ciphertext)
- Privacy: Everything runs in your browser via the Web Crypto API
How to Use Secure Note Encryptor
Enter your data
Open Secure Note Encryptor and type or paste the data you want to process.
Choose the operation
Select the encoding format, hash algorithm, or conversion mode as needed.
Get instant results
The output is generated immediately as you type — no need to click a button.
Copy the output
Click the Copy button to copy the result to your clipboard for use elsewhere.
Frequently Asked Questions
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