Hex Encoder / Decoder
Encode text to hexadecimal and decode hex bytes to UTF-8.
Sensitive data: Anything you enter is processed in your browser only. It is never uploaded or logged on a server.
Hex encoding and decoding text
Hexadecimal represents bytes as pairs of 0-9A-F characters. It appears in firmware dumps, cryptographic samples, color channels, and memory offsets. Decoding validates even length and charset before converting back to UTF-8 text.
UTF-8 multi-byte sequences expand noticeably in hex. Binary that is not valid UTF-8 may decode to replacement characters; treat output as bytes when working with non-text payloads.
Compare case-insensitively when matching vendor docs that mix uppercase and lowercase nybbles.
Encode and decode locally on packet captures or HMAC debug output that may include session identifiers.
Reference Guide
Security tool - all processing runs locally in your browser. No data is sent to a server.
Operation: hex-encode
Paste input, click Run, and copy the result. For two-input tools, fill both fields before running.
Example Input
DevPipe
A sample loads automatically when you open this tool. Use Load Sample to reset it.