Text to Hex

About This Tool

The Text to Hex Converter encodes any plain text string into its hexadecimal byte representation. Each character is mapped to its Unicode code point, then expressed as one or two hex digits. This is commonly used in debugging, networking, cryptography, and low-level programming where raw byte values need to be inspected or transmitted.

All conversion happens entirely in your browser — no data is sent to any server. The tool supports ASCII and Unicode characters, including emoji and extended symbols. You can choose between uppercase (A–F) and lowercase (a–f) hex output, and select the separator character that fits your use case.

How to Use

1. Type or paste your text into the Input Text box.
2. Choose uppercase or lowercase output using the checkbox.
3. Select a separator: space, none, dash, or colon.
4. Click Convert to generate the hex output.
5. Click Copy to copy the result to your clipboard.

Use Cases

Network engineers use hex encoding when inspecting raw packet payloads in tools like Wireshark. Web developers convert strings to hex when building custom URL encoders or debugging WebSocket frames. Security researchers encode text to hex when analyzing exploit payloads or obfuscated shellcode. Students learning about character encoding and binary representations use this tool to see how text maps to byte values.

FAQ

• What is hexadecimal encoding for text?— Each character in your text has a numeric code point (e.g., 'A' = 65). Hex encoding expresses that number in base-16 format (65 decimal = 41 hex).
• Does it support Unicode / emoji?— Yes. Characters above U+00FF are encoded as 4-hex-digit values (e.g., '€' = 20AC).
• What separator should I use? — Space is the most human-readable format. No separator is common in binary protocols. Colon is standard in MAC address and certificate notation.
• How do I convert hex back to text? — Use the companion Hex to Text Converter.