Text to Hex Converter

What Is ASCII Text?

ASCII is a character code system for letters, numbers, and symbols. It gives each character a number. For example, A has decimal value 65 and hex value 41. ASCII mainly supports basic English text and common control characters. It does not cover every language or emoji.

What Is Hexadecimal?

Hexadecimal, or hex, is a base-16 number system. It uses digits 0 to 9 and letters A to F. Each hex digit represents four binary bits. Hex shows computer data in a shorter form that students can read. This makes hex useful for reading encoded data.

How to Convert Text to Hex Manually

To convert text manually, find the character value first, then change that value to base 16. Formula: $Decimal value ÷ 16 = quotient and remainder$. Guide:

1. Write each character.
2. Find its ASCII decimal value.
3. Divide by 16.
4. Record the remainder.
5. Convert 10 to 15 into A to F.
6. Read the result from last quotient to first remainder.

Practical example: A has decimal value 65. $65 ÷ 16 = 4$ remainder $1$. Therefore, $65 = 41$ in hex. For “Hi”, H = 48 and i = 69, so the result is $48 69$.

Text to Hex conversion table

Note: ASCII values show common English characters. Your result can differ for Unicode text because UTF-8 may use multiple bytes for one character.

Text to Hex Conversion through Code

You can also convert text to hexadecimal with common programming languages. Python and JavaScript provide simple ways to turn text into encoded byte values.

Python

Python can encode text as UTF-8 bytes and then convert those bytes into hexadecimal.

text = "Hello"
hex_value = text.encode("utf-8").hex()

print(hex_value)

Output:

48656c6c6f

JavaScript

JavaScript can use TextEncoder to convert text into UTF-8 bytes. You can then turn each byte into a two digit hexadecimal value.

const text = "Hello";
const bytes = new TextEncoder().encode(text);

const hex = Array.from(bytes)
.map(byte => byte.toString(16).padStart(2, "0"))
.join("");

console.log(hex);

Output:

48656c6c6f

Tips and Strategies for Effective Text to Hex Conversion

Check your text before converting it. Choose the right encoding for non-English characters. Keep spaces and line breaks. Compare results with an ASCII table. Use clear separators when reading many hexadecimal bytes. For Unicode text, check whether the converter uses UTF-8.