AES Encryption: Encrypt & Decrypt Text Online | Free Tool
0 usesAES Encryption Tips
AES-256-GCM Encryption
Uses the strongest AES mode (256-bit GCM) with PBKDF2 key derivation for maximum security.
Password-Based
Enter any password to encrypt. Use the same password to decrypt. No key management needed.
100% Client-Side
All encryption and decryption happens in your browser using the Web Crypto API. No data is ever sent to servers.
Encrypt & Decrypt
Encrypt text to a Base64 string, or paste encrypted text with the password to decrypt back to plaintext.
Frequently Asked Questions
How secure is AES-256-GCM?
AES-256-GCM is military-grade encryption used by governments and banks worldwide. It provides both confidentiality and integrity.
Can someone decrypt without the password?
No. Without the correct password, the encrypted data is computationally impossible to decrypt.
Is my data safe?
Yes, all encryption happens in your browser using the Web Crypto API. No data is transmitted.
Is this free?
Yes.
What happens if I forget my AES encryption password?
If you forget your password, the encrypted text becomes permanently inaccessible. AES-256-GCM is designed to be unbreakable without the correct key, meaning there's no recovery mechanism or backdoor. Always store your password securely, preferably using a dedicated password manager, to prevent data loss.
Is the encrypted output from this online AES tool compatible with other AES-256-GCM decrypters?
Yes, the encrypted output is standard AES-256-GCM. As long as the other tool also uses AES-256-GCM with the same password and parameters (key derivation function, IV, salt), decryption should be successful. This tool uses the Web Crypto API, which adheres to standard cryptographic practices, ensuring broad compatibility with correctly implemented AES-256-GCM software and libraries.
How to Encrypt Text
- Enter text to encrypt
- Set a strong password
- Click Encrypt to get the encrypted output
- To decrypt, paste the encrypted text with the same password