ASCII to Hex Converter (Text to Hex)

Output delimiter (optional):

Reverse Conversion Tool: Hex to ASCII Converter

Easily convert plain ASCII text to hexadecimal code with our accurate and developer-friendly ASCII to Hex Converter. This tool helps programmers, network analysts, and cybersecurity professionals encode readable characters into compact hexadecimal values for efficient data handling.

What Is ASCII and Why It Matters?

ASCII (American Standard Code for Information Interchange) is a widely used character encoding system representing English characters as numerical codes. Each character, including letters, digits, and symbols, maps to a unique decimal value between 0 and 127. For example, the capital letter A corresponds to the decimal value 65, or 41 in hexadecimal.

ASCII is the backbone of modern text encoding, allowing computers to store and communicate readable content.

What Is Hexadecimal?

Hexadecimal, or base-16, is a positional numeral system using digits from 0–9 and letters A–F. It’s used frequently in computing to represent binary data more compactly. Each hexadecimal digit corresponds to four binary digits (bits), and a full byte (8 bits) is typically represented as two hex digits.

Why Convert ASCII to Hex?

Converting ASCII to hexadecimal is essential in many technical workflows:

Programming: Embedding text strings in low-level code or memory
Networking: Encoding data packets or API payloads
Security: Hex-encoded strings help obscure sensitive information
Debugging: Reading raw data outputs from hardware or log files

Using our converter, you can quickly encode any ASCII string to its hexadecimal equivalent for use in web development, embedded systems, or encryption utilities.

How ASCII to Hex Conversion Works

The conversion follows a simple two-step encoding process:

Character to ASCII Decimal: Each character in your input text is converted to its ASCII decimal code.
Decimal to Hexadecimal: That decimal value is then converted to a two-digit hex number.

For instance, the string "Hi" is processed as:

'H' → ASCII decimal: 72 → Hex: 48
'i' → ASCII decimal: 105 → Hex: 69
Final output: 48 69

ASCII to Hex Conversion Example (ASCII → Decimal → Hex)

Let’s walk through a full example:

Input Text: Zeeshan
ASCII Codes: Z (90), e (101), e (101), s (115), h (104), a (97), n (110)
Hex Output: 5A 65 65 73 68 61 6E

Each character is converted independently, preserving the original text’s structure in hex form.

ASCII to Hex Conversion (Programming Examples)

JavaScript

function asciiToHex(str) {
  return str.split('').map(c => c.charCodeAt(0).toString(16).padStart(2, '0')).join(' ');
}

Python

text = "ASCII"
hex_output = " ".join(format(ord(c), "02X") for c in text)
print(hex_output)  # Output: 41 53 43 49 49

ASCII to Hex Conversion Table (Partial)

ASCII Char	Decimal	Hex
A	65	41
B	66	42
a	97	61
b	98	62
0	48	30
9	57	39
Space	32	20
!	33	21
\n (newline)	10	0A

You can use this reference to verify small conversions manually or debug character-level issues in scripts.

Text to Hex Conversion Tool Features

Instant Conversion – Get hex output as you type.
Formatting Options – Choose between space-separated, 0x-prefixed, or compact hex.
Case Customization – Output in uppercase or lowercase hex letters.
Clipboard Support – One-click copy for fast integration into your code or scripts.

FAQs – Text to Hex

Q1: Can I convert extended characters or emojis?

This tool focuses on standard ASCII (0–127). For Unicode or emoji conversion, consider a UTF-8 encoder.

Q2: What’s the difference between ASCII and UTF-8?

ASCII is a subset of UTF-8. UTF-8 supports a broader range of characters including accents, emojis, and non-English scripts.

Q3: Is this tool secure for sensitive data?

Yes. This tool runs in your browser and doesn’t store or transmit input data to any server.

Q4: Can I reverse the process?

Absolutely. Use our Hex to ASCII Converter to decode any hex string back into readable ASCII text.

Related Conversions You Might Need

If you’re working with hexadecimal systems, you might also need to:

Convert readable numbers using a Hex to Decimal Converter
Encode numeric values with the Decimal to Hex Converter
Analyze data at the bit level with a Hex to Binary Converter
Convert between Octal and Hex for legacy or embedded formats
Encode hexadecimal data using a Hex to Base64 Converter
Decode Base64 strings back to hexadecimal with a Base64 to Hex Converter

All these tools are part of our complete suite of hex-based number system utilities available at HexCalculator.org, your trusted hub for base conversions and digital encoding.