What Is Hexadecimal (Hex)?
Hexadecimal, or "hex", is a base-16 number system that uses sixteen symbols — the digits 0 through 9 and the letters A through F — instead of the ten digits used in everyday decimal counting. It's widely used in computing because it maps neatly onto binary data: each hex digit represents exactly 4 bits, so a full byte (8 bits) is always exactly two hex digits.
How to Convert Text to Hex
Select "Text → Hex" above, type or paste any text into the box, and click Convert. Each character in your text is converted to its two-digit hexadecimal byte value, giving you a compact hex representation of your original text.
How to Convert Hex to Text
Select "Hex → Text", paste your hex code (pairs of hex digits, with or without spaces between them), and click Convert. The tool reads each pair, converts it back to its character, and rebuilds your original readable text.
Why Convert Between Text and Hex?
Hex is used throughout computing and web development: color codes in CSS (like #F5821F), memory addresses, encoded URLs, cryptographic hashes, and low-level debugging output are all commonly shown in hexadecimal. Converting between text and hex is useful for developers inspecting raw data, students learning number systems, and anyone working with encoded strings, tokens, or byte sequences.
Key Features
- Two-way conversion — switch instantly between Text → Hex and Hex → Text.
- Instant results — conversion happens as soon as you click Convert.
- Clear error messages — invalid hex input (bad characters or an odd digit count) is flagged immediately.
- One-click copy — copy your converted result straight to the clipboard.
- 100% private — everything runs locally in your browser; nothing is uploaded to any server.
- Free, with no sign-up — use it as many times as you like.
Tips for Accurate Conversion
- When converting hex to text, make sure your hex digits come in complete pairs (each pair represents one character).
- Spaces between hex pairs are optional — the tool accepts both spaced and unspaced hex strings.
- Only the characters 0-9 and A-F (uppercase or lowercase) are valid in hex input — remove anything else before converting.
- This tool converts standard text characters; some special or multi-byte Unicode characters may not round-trip exactly the same way in every hex tool.