Quick Answer
How does this text encryption work?
// Answer
This tool uses AES-256-GCM, a strong, authenticated encryption standard, with a key derived from your password using PBKDF2. Encryption and decryption happen entirely in your browser via the Web Crypto API. Without the correct password, the ciphertext cannot be read.
Important notes
Encryption is only as strong as your password — choose a long, unique one. There is no password recovery: if you lose it, the text cannot be decrypted. Share the password through a separate, secure channel from the ciphertext.
Why use this tool
Private by design
Because everything runs locally, your plaintext and password are never transmitted or stored. It’s a quick way to protect a note or message before sending it over an untrusted channel.
FAQ
Frequently asked questions
AES-256 in GCM mode, with the key derived from your password via PBKDF2 (150,000 iterations).
No. There is no backdoor or recovery — the password is required to decrypt.
No. All cryptographic operations happen in your browser using the Web Crypto API.
It uses strong standard cryptography, but for critical secrets use audited, purpose-built software and strong unique passwords.
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