Encrypt Text with a Password Online
Protect a message with a password before sharing it. The text is encrypted with AES-256-GCM in your browser and the result is Base64 output anyone with the password can decrypt.
AES Encryption Tool
Encrypt and decrypt text using AES-256 encryption
GCM provides authenticated encryption - it detects if the ciphertext has been tampered with. Recommended for most use cases.
Press Ctrl + Enter to encrypt.
Quick Start
- 1Enter the text you want to encrypt
- 2Set a strong password that both sides will use
- 3Click Encrypt to get the Base64 ciphertext
- 4Share the output, then decrypt later with the same password
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Looking for FAQs and advanced options? Visit the full AES Encryption Tool page →