How to use hexadecimal encoding
Hexadecimal writes each byte with two base-16 digits. It is useful for inspection and transport, but it is not encryption.
Turn UTF-8 text into hex
Choose Encode and run the tool to get lowercase hexadecimal pairs for every UTF-8 byte, including multi-byte emoji.
Turn hex bytes into text
Choose Decode and paste even-length hexadecimal bytes. ASCII whitespace is allowed between bytes, but invalid digits and UTF-8 are reported.