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Text Encryption / Decryption

Encrypt and decrypt text using AES-GCM via the Web Crypto API

Passphrase (encryption key)

Plaintext

Frequently Asked Questions

What encryption algorithm is used?

AES-256-GCM via the Web Crypto API. The passphrase is derived into a 256-bit key using PBKDF2 with 100,000 iterations and a random salt. GCM mode provides both confidentiality and integrity.

Is my data safe?

Yes. All encryption and decryption happens locally in your browser using the native Web Crypto API. Nothing is transmitted to any server.

Can I decrypt on another device?

Yes. Copy the Base64 output and use the same passphrase on any device with this tool. The salt and IV are embedded in the output.