Encrypt & Decrypt Text — AES-256-GCM Encryption Tool
Encrypt and decrypt text using AES-256-GCM with password-based key derivation (PBKDF2). Everything runs in your browser — your data never leaves your device.
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Frequently asked questions about encrypt.
What encryption algorithm is used?
AES-256-GCM (Advanced Encryption Standard with 256-bit keys in Galois/Counter Mode). This is the same standard used by governments and financial institutions worldwide.
How is the encryption key derived from my password?
We use PBKDF2 (Password-Based Key Derivation Function 2) with 100,000 iterations and SHA-256 hashing. A random salt is generated for each encryption, making it resistant to rainbow table attacks.
Does my data leave my browser?
No. All encryption and decryption happens entirely in your browser using the Web Crypto API. Nothing is sent to any server.
Can I decrypt the text on another device?
Yes. Copy the encrypted output and paste it on any device with this tool. As long as you use the same password, the text will decrypt correctly.