How secure is AES-256 encryption?

AES-256 encryption is military-grade encryption that is considered virtually unbreakable with current technology. It's the same standard used by governments and financial institutions.

Is my data sent to any servers?

No, all encryption and decryption happens entirely in your browser. No data is sent to any server, ensuring maximum privacy and security for your messages.

How do I share the password securely?

Share the password through a different communication channel than the encrypted message. For example, share the password in person, by phone, or through a different messaging app.

Is the secret message encoder free?

Yes, this AES-256 encryption tool is completely free with no registration required. Perfect for secure private communication and protecting sensitive information.

🔐 Secret Message Encoder/Decoder

Secure AES-256 encryption — all processing happens in your browser

Encrypt Your Message

0 characters

Password (Encryption Key)

Press Ctrl + Enter to encrypt

📁 Or Encrypt a File

Drop a file here or browse

Max file size: 10MB

Processing...

Decrypt a Message

0 characters

Password (Decryption Key)

Press Ctrl + Enter to decrypt

📁 Or Decrypt a File

Drop an encrypted file here or browse

Select a .encrypted file

Processing...

How to Use This Tool

To send a secret message: Type your message in the Encrypt tab, create a strong password, and click Encrypt.
Share the encrypted text with your recipient through any communication channel (email, text, etc.).
Share the password separately through a different channel (phone call, in person, different app).
To read a message: Paste the encrypted text in the Decrypt tab, enter the password, and click Decrypt.

🛡️ Security Note: This tool uses AES-256 encryption, the same standard used by governments and banks. All encryption/decryption happens entirely in your browser — no data is ever sent to any server.