Text Encryption Tool

Encrypt text with AES-256 and a password, and decrypt it again later.

Uses AES-256-GCM — runs entirely in your browser

How to use Text Encryption Tool

Encryption runs entirely in your browser via the Web Crypto API — AES-256-GCM with a PBKDF2-derived key (100,000 iterations). Nothing is sent to a server.

Enter the text you want to encrypt and a password.
Copy the encrypted output.
To decrypt, paste the encrypted text back in with the same password.

→ generate a one-way hash instead of reversible encryption

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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