Text To Hex Converter
Convert text to hexadecimal online. Supports UTF-8, UTF-16 LE/BE. Choose space, comma, or no separator. Get instant hex output with character breakdown.
About This Calculator
The Text to Hex Converter is a free online tool that transforms any text string into its hexadecimal (hex) representation. Whether you are a programmer debugging binary data, a student learning about character encoding, or a web developer working with color codes, this converter helps you understand how computers store and represent text at the byte level.
Every character you type is stored in memory as one or more bytes. This converter takes each character, encodes it using your chosen encoding standard (UTF-8, UTF-16 LE, or UTF-16 BE), and displays the corresponding hexadecimal byte values. For example, the word "Hello" becomes 48 65 6C 6C 6F in UTF-8 hex — each pair of hex digits represents one byte of data.
How It Works
The conversion process follows three steps: (1) Each character in your input string is encoded into one or more bytes using the selected encoding. UTF-8 uses 1-4 bytes per character, while UTF-16 uses 2 bytes per character for the Basic Multilingual Plane and 4 bytes for supplementary characters. (2) Each byte is converted to its two-digit hexadecimal equivalent (00 to FF). (3) The hex values are joined using your chosen separator — space (48 65 6C), comma (48,65,6C), or no separator (48656C).
Regional Notes
Global: Hexadecimal representation is universal across all regions and computing platforms. The hex values produced by this converter are identical regardless of locale. UTF-8 is the dominant encoding on the web globally, used by over 98% of websites. UTF-16 is commonly encountered in Windows environments, Java string internals, and certain file formats like PDF.
United States: US developers frequently use hex in web development (CSS colors like #FF5733), networking (MAC addresses like AA:BB:CC:DD:EE:FF), and cybersecurity contexts.
United Kingdom: The hex representation is identical to the US. UK developers and students use this tool for computer science coursework, A-level computing, and programming projects involving binary data manipulation.
India: Hex conversion is widely taught in Indian computer science and engineering curricula. The tool is useful for CBSE Class 12 CS projects, GATE exam preparation, and professional software development across India's large IT sector.
Frequently Asked Questions
How does the Text to Hex converter work?
The Text to Hex converter takes any text you enter and converts each character to its hexadecimal byte representation. It supports UTF-8 (the most common encoding), UTF-16 LE, and UTF-16 BE. Each character is encoded to bytes, and each byte is converted to a two-digit hex value (00-FF). You can choose space, comma, or no separator between hex bytes.
What is the hex code for Hello?
The word Hello in hex using UTF-8 encoding is: 48 65 6C 6C 6F. Each letter corresponds to its ASCII hex value: H=48, e=65, l=6C, l=6C, o=6F.
What is the difference between UTF-8 and UTF-16 encoding?
UTF-8 uses 1 byte for ASCII characters and up to 4 bytes for others, making it space-efficient for English text. UTF-16 uses 2 bytes per character (or 4 for rare characters). UTF-8 is the dominant encoding on the web. UTF-16 is commonly used in Windows and Java environments.
What is hexadecimal (hex)?
Hexadecimal is a base-16 number system that uses digits 0-9 and letters A-F. It is widely used in computing to represent binary data in a more human-readable form. Each hex digit represents 4 bits (a nibble), so a byte (8 bits) is represented as two hex digits.
Is this text to hex converter free to use?
Yes, this text to hexadecimal converter is completely free to use with no registration or login required. You can convert any text instantly and share the results via URL.
Can I convert emojis and Unicode characters to hex?
Yes, this converter fully supports emojis, non-Latin scripts (Cyrillic, Chinese, Arabic, etc.), and all Unicode characters. UTF-8 encoding will represent multi-byte characters with multiple hex byte values. For example, the smiley emoji (😀) encodes as F0 9F 98 80 in UTF-8.
How is hex used in programming and web development?
Hex is used extensively in programming for color codes (like #FF5733), memory addresses, binary file analysis, network packet inspection, cryptography, and low-level debugging. Web developers use hex color codes daily in CSS and HTML.
What is the hex value of the letter A?
The hex value of uppercase A is 41 (ASCII decimal 65). Lowercase a is 61 (ASCII decimal 97). This case sensitivity is important — the hex codes differ between uppercase and lowercase letters in the ASCII table.