Generate QR codes containing AES-encrypted data that requires a password to decode the embedded message.
This generator takes a message and password, encrypts the message with AES, and places the resulting encoded ciphertext in a QR symbol. Scanning alone does not reveal the original message: decryption also requires the password and a decoder that understands the emitted payload format. The common surprise is that encryption does not hide the symbol or prevent copying; anyone who sees it can retain the ciphertext. Both the message and password stay in the browser rather than being uploaded.
The entered plaintext and password are used to produce an AES-encrypted payload. That payload, rather than the plaintext, becomes the QR code's data. The QR image therefore acts as a transport container for ciphertext; it does not perform decryption itself. Scanning recovers the embedded payload, after which compatible password-based decryption is still required.
AES specifies encryption of fixed-size data blocks under a key, but it does not specify how a human password becomes that key or how parameters and ciphertext are packaged. Those surrounding choices determine whether a decoder can interpret this generator's QR payload. Merely supporting AES does not guarantee interoperability with the generated code.
No. A general QR scanner can recover the stored encrypted payload, but it cannot turn that payload into plaintext without the password and compatible decoding rules. It may display the payload as an opaque string or other encoded data. Use a decoder explicitly compatible with the format produced by this generator.
Usually no. QR symbols have finite data capacity, and the encrypted payload can be larger than the original content. As the payload grows, the symbol becomes denser and harder to scan at a fixed size. This tool is best suited to short messages; large documents and binary files need a file-encryption workflow.
The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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