Encrypt and decrypt text with AES-GCM or AES-CBC using a passphrase or hex key, entirely in your browser. This AES Encrypt is part of our free developer tools collection on freetoolstouse. It runs entirely in your browser, so your files and inputs stay on your device unless the tool explicitly performs a network check (for example DNS or SSL lookups). There is no signup, no watermark, and no usage cap. Use it whenever you need a fast, accurate result without installing software.
Encrypt and decrypt text with AES-GCM or AES-CBC using a passphrase or hex key, entirely in your browser.
Encrypts UTF-8 text and returns a portable JSON payload with IV and ciphertext.
Encryption uses the Web Crypto API in your browser. AES-GCM provides authenticated encryption; AES-CBC is included for compatibility with older systems.