JSONToTable

Loading AES Encryption Tool...

How to Use Free Online AES Encryption Tool - Symmetric Encryption Guide

Master military-grade cryptographic data protection with advanced encryption standard techniques

Step 1

Input Your Data

Let's get your data into the encryptor! Whether you're working with text, JSON, XML, or any other sensitive data, AES encryption provides military-grade symmetric cryptography for secure data protection. This cryptographic algorithm is trusted by governments and enterprises worldwide. You have several convenient options:

•
Paste directly: Copy your text or sensitive data and paste it into the input editor
•
Upload a file: Click "Upload" to select a file from your computer to encrypt
•
Try the sample: Click "Sample" to load example data and see how encryption works

Example: Sensitive Telecom Data Before Encryption

Here's what sample telecom JSON data looks like before encryption:

{
  "telecom_provider": "GlobalTel Networks",
  "account_id": "ACC-2024-001",
  "subscriber": {
    "phone_number": "+1-555-123-4567",
    "plan_type": "5G Unlimited Premium",
    "monthly_charge": 89.99
  }
}
Step 2

Configure Encryption Settings

Choose your encryption preferences. The tool supports multiple AES encryption standards:

•
AES-128 or AES-256: Choose your encryption strength (256-bit recommended for maximum security)
•
Cipher Modes: Select CBC (default), GCM (authenticated), or CTR mode
•
Generate or provide key and IV: Automatically generate secure keys or use your own

Example: Encryption Configuration

Recommended settings for maximum security:

AES Mode
AES-256
Cipher Mode
GCM
Step 3

Download or Copy Encrypted Data

Get your encrypted data ready for secure storage or transmission! Multiple export options make it easy to integrate into your workflow:

•
Copy to clipboard: One-click copying for quick use in your applications
•
Download as file: Save encrypted data for secure storage or sharing
•
Get base64 output: Perfect for embedding in APIs or databases

Frequently Asked Questions

What is AES encryption and how does it work?

AES (Advanced Encryption Standard) is a symmetric encryption algorithm that uses a secret key to encrypt and decrypt data. It's the gold standard for data encryption and is used by governments, banks, and security-conscious organizations worldwide. Simply paste your data, provide or generate an encryption key, and the tool encrypts it instantly.

What's the difference between AES-128 and AES-256?

The numbers refer to the key size in bits: 128-bit and 256-bit respectively. AES-256 provides the highest level of security and is recommended for highly sensitive data. AES-128 is suitable for most applications. Both are considered secure by current standards.

Is my data secure when using this tool?

Yes! All encryption happens in your browser using the Web Crypto API. Your data never leaves your computer or gets uploaded to any server. Complete privacy for your sensitive data and encryption keys.

What cipher modes are supported?

We support three modes: CBC (Cipher Block Chaining) - the most common, GCM (Galois/Counter Mode) - provides authentication, and CTR (Counter Mode) - for streaming. GCM is recommended for maximum security as it provides both confidentiality and authenticity.

How do I generate a secure encryption key?

Click the "Generate Key" button to create a cryptographically secure random key and IV. The tool generates keys using the browser's built-in crypto.getRandomValues() function, which is suitable for cryptographic purposes.

Can I encrypt any type of file?

Yes, you can encrypt any text-based data. For binary files like images or videos, you would typically convert them to base64 first, then encrypt. This tool is optimized for text, JSON, XML, API responses, and other text-based formats.

What's the difference between CBC, GCM, and CTR modes?

CBC is the traditional mode that encrypts data block-by-block. GCM is recommended for security as it provides authenticated encryption - it detects if encrypted data has been tampered with. CTR mode converts AES into a stream cipher, useful for streaming applications.

Can I decrypt AES-encrypted data with this tool?

Currently, this is our encryption tool. We have a separate AES decryption tool for decrypting data. You'll need the same encryption key and IV that was used for encryption to successfully decrypt the data.

Related Tools

AES Decryption

AES decryptor online - Decrypt AES-encrypted data with AES-128 or AES-256. Support for CBC, GCM, and CTR modes. Restore your encrypted files securely.

AES Key & IV Generator

Generate secure AES-128 or AES-256 encryption keys and initialization vectors (IV) in hex or Base64 format.

AES-GCM Encrypt/Decrypt

Encrypt and decrypt data specifically in AES-GCM mode with AES-128 or AES-256 and Base64 ciphertext output.

AES-CBC Encrypt/Decrypt

Encrypt and decrypt data specifically in AES-CBC mode with AES-128 or AES-256 and Base64 ciphertext output.

AES-CTR Encrypt/Decrypt

Encrypt and decrypt data specifically in AES-CTR mode with AES-128 or AES-256 and Base64 ciphertext output.

PBKDF2 AES Key/IV Generator

Derive AES-128 or AES-256 key and IV from passphrase using PBKDF2-SHA256 with configurable iterations and salt.