Text Encryptor
Encrypt and decrypt text with AES-256-GCM using a password. Private, client-side cryptography.
AES-256-GCM with PBKDF2 key derivation. All encryption runs in your browser — nothing is sent to a server.
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Frequently Asked Questions
Quick answers to common questions
What encryption is used?+
AES-256-GCM with a key derived via PBKDF2 (100,000 iterations, SHA-256) from your password.
Is my password sent to a server?+
No. Encryption and decryption run entirely in your browser using the Web Crypto API.
What format is the ciphertext?+
Base64 encoding of salt + IV + encrypted bytes. Keep the full string to decrypt later.
Can I lose access to encrypted text?+
Yes. Without the correct password, decryption is not possible. Store passwords safely.
Is this suitable for highly sensitive data?+
It is convenient for casual protection. For critical secrets, use audited tools and key management.
How do I decrypt?+
Switch to Decrypt, paste the Base64 ciphertext, enter the same password, and click Decrypt.
Does it work offline?+
Yes, after the page loads — no server calls during encrypt/decrypt.
Is this free?+
Yes.