Plexto

Text Encryption Tool

Encrypt and decrypt text with AES-256 and a password.

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Frequently asked questions

What encryption does this actually use?

AES-256-GCM, with your password stretched into a key via PBKDF2 (100,000 iterations, SHA-256) — both are standard, well-vetted algorithms implemented by your browser's built-in Web Crypto API, not a custom implementation.

What happens if I lose the password?

The text is unrecoverable. There's no backdoor or reset — the password is the only key, and it never leaves your browser, so no one (including this site) can recover it for you.

Is the encrypted output sent anywhere?

No — encryption and decryption both run entirely in your browser using the Web Crypto API. Neither your text nor your password is ever transmitted.

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