Is my text data uploaded to a server?

No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

Which encoding is used?

UTF-8. Accents and emoji become multi-byte sequences (é → c3 a9), matching what files and network protocols actually contain.

100% local — your data never leaves your browser

Text to Hex Converter — Encode Strings as Hexadecimal

Convert any text to space-separated hexadecimal bytes (UTF-8) instantly in your browser. Free and private: your data never leaves your device.

Instant Private Zero cookies

Swap: Hex → Text

Text input

Hex output

Why convert text to hex?

Debugging encodings, crafting binary protocols and reading network dumps all require seeing the actual bytes. Paste any text above to get its UTF-8 bytes as hexadecimal pairs.

How it works

The text is encoded as UTF-8 locally, and each byte is printed as a two-digit lowercase hex pair separated by spaces — easy to read and accepted back by the Hex to Text tool.

Frequently asked questions

Is my text data uploaded to a server?: No. Everything runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
Which encoding is used?: UTF-8. Accents and emoji become multi-byte sequences (é → c3 a9), matching what files and network protocols actually contain.