AES Encrypt Online

There are times when you absolutely have to send a password, API key, or sensitive server configuration over a less-than-secure channel like an email or Slack message. My go-to solution for this is AES encryption. This AES Encryptor lets you quickly lock down your text before sending it, without installing desktop software.

Total Client-Side Security

The most important thing to know about this tool is that it operates 100% locally. Using the CryptoJS library, the symmetric block cipher math runs inside your current browser tab. Your plaintext and your secret key are never transmitted over the network. You can even load this page, disconnect from the Wi-Fi, and it will still work perfectly.

The Golden Rule of Symmetric Encryption

AES is symmetric, meaning the exact same password used to lock the data is required to unlock it. Do not forget your password. There is no 'forgot password' link and no backdoor. If you lose the key, that encrypted text is mathematically impossible to recover.

How to Use It

Just paste your sensitive text, type a strong passphrase, and encrypt. The tool outputs a Base64-encoded string, which is great because you can copy and paste it into any chat app without worrying about special characters breaking the formatting.