AES Encrypt / Decrypt
NewEncrypt sensitive text using AES-256-GCM, the strongest symmetric encryption standard, with PBKDF2 key derivation (600,000 iterations, SHA-256) as recommended by OWASP 2024. Decryption requires the same secret key. The output format includes the salt, IV, and ciphertext — all encoded in Base64. Use for securing private notes, storing sensitive data, or learning how symmetric encryption works. Everything runs entirely in your browser.
AES-256 Encrypt / Decrypt
Browser-based AES-256-GCM encryption using your password as the key. No data is sent to any server.
How to Use AES Encrypt / Decrypt
- 1Enter the text to encrypt
- 2Enter a strong secret key
- 3Click Encrypt to get the ciphertext
- 4To decrypt, paste the ciphertext and enter the same key
Your Privacy is Protected
AES Encrypt / Decrypt runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
Frequently Asked Questions
What is AES-256-GCM?
AES-256-GCM is a symmetric authenticated encryption algorithm. The 256 refers to key size (256 bits), GCM (Galois/Counter Mode) provides both encryption and integrity verification.
Can someone decrypt my data without the key?
No. AES-256 is computationally infeasible to brute-force. With a strong key, your data is secure even against nation-state attackers.
Why Use This Tool?
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