Text to Hex Converter
Convert any text into hexadecimal — the general-purpose converter for turning words, sentences, or emoji into their byte representation.
How to Convert Text to Hex
Each character is encoded to 1-4 UTF-8 bytes based on what it is — plain English letters take one byte, accented letters and most other scripts take 2-3, and emoji take the full 4 — and every byte is written as 2 hex digits, concatenated in order.
Common Mistakes When Converting Text to Hex
- Expecting a fixed number of hex digits per character — length varies by character.
- Forgetting spaces and punctuation each produce their own byte too.
- Assuming the case of letters doesn't matter — it changes the resulting bytes.
Frequently Asked Questions
What encoding does this use?
UTF-8, the standard encoding for nearly all modern text — plain English produces the same result as ASCII to hex, and it also correctly handles accented letters, other scripts, and emoji.
Why might the hex be longer than I expect?
Characters outside plain English (accents, symbols, emoji) take 2-4 bytes each in UTF-8, not 1 — so text with those characters produces more hex digits than its letter count alone suggests.
Does capitalization change the hex?
Yes — uppercase and lowercase letters have different byte values, so changing case changes the resulting hex.
Can I convert a whole sentence, including punctuation and spaces?
Yes — every character, including spaces and punctuation, converts to its own byte or bytes and gets included in the output.
Why convert text to hex at all?
To embed a string as byte literals in code, to prepare a value for a binary file format, or to compare exact byte content when debugging an encoding mismatch.
Is this the same as ASCII to Hex?
For plain English text, yes, identical output. This converter additionally supports the full Unicode range (accents, other scripts, emoji) that ASCII to Hex can't handle.