UtilixVerse
AES Text Encryption
↑↓ navigate↵ open
ESC close
Back to Privacy & Encryption
Toolprivacy

AES Text Encryption

Encrypt text using AES-256-GCM encryption. Free AES encryption tool with password-based key derivation.

Works Offline100% Free

Processed 100% locally in your browserPrivate & Safe

AES Text Encryption runs entirely on your device using Web API standards. No data is ever uploaded to UtilixVerse servers.

Your Input
➔
Browser
➔
Result
No Server UploadsNo Account RequiredWorks OfflineZero Data Logging

Encrypt Text

The key is derived locally via PBKDF2-SHA-256 (600,000 iterations). Your password never leaves this page.

Type a message and a password, then press Encrypt.

Free AES Text Encryption — AES-256-GCM in Your Browser

Welcome to the UtilixVerse AES Text Encryption tool — a free, private way to lock any message with AES-256-GCM encryption. Type your text and a password, press Encrypt, and receive a compact UVE1 envelope you can paste into an email, chat, or document. Your recipient opens it with the companionAES Text Decryption tool. Everything runs 100% in your browser via the Web Crypto API — no servers, no uploads, no logs.

Strong by Design

Your password is hardened with PBKDF2-HMAC-SHA256 at 600,000 iterations plus a random 128-bit salt, and the message is sealed with AES-256-GCM and a fresh 96-bit IV every time. GCM is anauthenticated cipher, so tampering is detected rather than silently producing altered output. Each encryption produces a unique ciphertext even for identical input.

Why Encrypt Text Locally?

Sharing secrets — passwords, recovery codes, private notes, credentials — over email or chat means sending them in the clear. Local AES encryption means only the intended recipient (who has the password) can ever read the content. Because the browser does all the cryptography, your plaintext never crosses the network, which is stronger than any "cloud encryption" service that can technically see your data.

Who Uses This Tool

Privacy-conscious individuals sharing sensitive strings, support teams exchanging credentials with clients, developers transmitting secrets and tokens, and journalists and researchers protecting communications. No install, no sign-up, and nothing leaves your device.

Frequently Asked Questions About AES Text Encryption

Is AES-256-GCM encryption secure?

Yes. AES-256-GCM is one of the strongest encryption standards in use today and is the cipher recommended by NIST for data at rest. "GCM" means Galois/Counter Mode, which is an authenticated mode — in addition to encryption it computes an authentication tag, so any tampering or corruption of the ciphertext is detected on decryption. 256-bit keys are considered secure against brute force for the foreseeable future, even against nation-state adversaries.

How is the encryption key derived from my password?

Your password is never used directly as the key. Instead it is run through PBKDF2 (Password-Based Key Derivation Function 2) with SHA-256 and 600,000 iterations, along with a random salt. This makes it dramatically harder for an attacker to brute-force your password: every guess costs the same expensive derivation, and the random salt defeats rainbow tables.

Why do I get a different result each time I encrypt the same text?

Because AES-GCM uses a random 96-bit initialization vector (IV) and the key derivation uses a random salt for every operation. The same plaintext and password therefore produce a completely different ciphertext each time. This is a security feature — identical ciphertexts would leak information. Any of these outputs can be decrypted back to the same original text with the correct password.

Where is my data processed?

Entirely in your browser. The plaintext, password, and ciphertext never leave your device — there is no server involved, so there is nothing for a server to log, store, or hand over. The Web Crypto API performs all encryption locally using hardware-accelerated cryptographic primitives.

What happens if I forget the password?

The data cannot be recovered. There is no backdoor, no recovery mechanism, and no "password reset" — by design. This is the trade-off of true end-to-end encryption. Store the password in a password manager, and consider testing the round trip (encrypt then decrypt a short message) before sending anything important.

Can I decrypt the result with other tools?

The output is a self-describing "UVE1" envelope: base64 salt, IV, and ciphertext. It is designed to be opened with the companion AES Text Decryption tool on this site. Because the underlying format is standard AES-256-GCM, anyone who can parse the salt, IV, and ciphertext fields and derive the key with the same PBKDF2 parameters can decrypt it.

Is this AES encryption tool free and private?

Yes — completely free, no registration, and 100% private. All encryption runs locally in your browser using the Web Crypto API; nothing is sent to any server, and the tool works offline after the page loads.

How to Use the AES Text Encryption

Encrypt sensitive text with AES-256-GCM before storing or sending it. The password is stretched with PBKDF2 (600,000 iterations), and the envelope output carries everything needed to decrypt later.

Step-by-Step

  1. 1Type your plaintext and choose a strong password.
  2. 2Encrypt produces a self-contained ciphertext envelope.
  3. 3Share the envelope and the password separately — losing the password means the data is unrecoverable.
Tip: AES-GCM is an authenticated cipher: tampered ciphertext fails to decrypt instead of silently producing garbage.

Keep UtilixVerse Free

One-time contribution for hosting & new tools

Donate

Missing a Tool? Request It

Suggest new utilities or report bugs

Request Tool