Skip to main content
YFT
Client-side ProcessingUpdated 2026-02-11Report issue

Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.

AES Encryption / Decryption

Encrypt and decrypt text using AES-128, AES-192, or AES-256.

FreeRuns in browseraes encryptaes decrypt

AES symmetric encryption with passphrase key derivation.

0 chars

0 chars

Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result

About AES Encryption / Decryption

Encrypt and decrypt text using AES-128, AES-192, or AES-256. Encrypt and decrypt text with AES-128, AES-192, or AES-256 online for free. Runs entirely client-side with passphrase key derivation. No data sent to servers. Implements standard encoding and decoding algorithms that produce output compatible with all major programming languages and platforms. Supports both encoding and decoding in a single interface. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.

Related tools: DES Encryption / Decryption, XOR Encryption / Decryption, Encryption Key Generator

How to Use AES Encryption / Decryption

  1. Enter text or data in the input field.
  2. Click Encode or Decode depending on your goal.
  3. Copy the output to your clipboard.

Frequently Asked Questions

What is AES Encryption / Decryption?
Encrypt and decrypt text with AES-128, AES-192, or AES-256 online for free. Runs entirely client-side with passphrase key derivation. No data sent to servers.
What encoding standards are used?
This tool follows the official encoding specifications, including RFC standards where applicable. The implementation matches widely-used libraries so the output is compatible with other systems and programming languages.
Can I encode binary data?
The tool primarily handles text input, but many encoding formats such as Base64 are designed to represent binary data as text. You can paste Base64-encoded binary data for decoding or encode text into a binary-safe format.
Is the encoding reversible?
Yes, all encoding operations provided by this tool are fully reversible. You can encode text and then decode it back to get the exact original content without any data loss.
Is AES Encryption / Decryption free to use?
Yes, encoding and decoding are completely free with no usage limits. The tool runs in your browser and requires no registration.
Is my data safe when using AES Encryption / Decryption?
Yes, all encoding and decoding happens locally in your browser. No data leaves your device, so your input remains completely private.

Related Tools

DES Encryption / Decryption
Encrypt and decrypt text using the DES algorithm.
XOR Encryption / Decryption
Encrypt and decrypt data using XOR bitwise operation.
Encryption Key Generator
Generate random encryption keys in hex, base64, or raw bytes.