Hex Converter - Text to Hexadecimal & Back
What is a hex converter?
A hex converter transforms text into hexadecimal (base-16) representation or decodes hex back to readable characters. Each character becomes a two-digit hex code based on its byte value. Use it for debugging, color codes, or low-level data inspection.
How to use the hex converter
- Enter input: Paste text or hex digits (optionally space-separated).
- Choose direction: Select Text to Hex or Hex to Text.
- Convert: Copy the result for logs, code, or documentation.
Why use this tool?
- Developer debugging: Inspect byte values in network traffic, files, or memory dumps.
- Color exploration: Understand how hex color codes map to RGB values.
- Data encoding: Prepare hex strings for APIs or configuration files.
Use case 1: Debug network payloads
Convert raw bytes to hex to trace encoding issues in API responses.
Use case 2: Config file values
Encode binary tokens or keys as hex for safe storage in text configs.
Use case 3: Learning hexadecimal
Visualize how ASCII characters map to hex values for computer science courses.
Examples
Basic example
Input: Hi
Output: 48 69
Advanced example
Input: 48 65 6c 6c 6f
Output: Hello
Common errors
Invalid hex characters
Only 0–9 and A–F (case insensitive) are valid. Non-hex characters cause parse errors.
Odd-length hex strings
Hex should have even character count (pairs). Add a leading zero if needed.
Tips and proven approaches
- Use spaces between byte pairs for readability; remove them for compact storage.
- Combine with the binary converter for alternate low-level views.
- Encode to Base64 with the Base64 encoder when hex is too long.
Related tools
- View binary representation with the binary converter.
- Encode for URLs using the URL encoder.
- Hash values with the MD5 generator.
Privacy and security
Conversion runs locally in your browser. No data is uploaded; hex output stays private.