What is hexadecimal (hex)?

Hex is a base-16 number system using digits 0–9 and A–F. Each byte is typically shown as two hex characters, which makes binary data easier to read and debug.

How do I convert text to hex?

Paste your text into the converter and encode to hex. Decoding turns a hex string back into text. Watch for spaces, 0x prefixes, and odd-length strings when decoding.

Why is hex common in blockchain?

Addresses, transaction hashes, calldata, and many RPC fields are represented in hex (often with a 0x prefix). Converting helps when inspecting raw payloads or debugging smart-contract input.

Free tools

Text to Hex Converter

Convert text to hexadecimal or hex to text instantly. Perfect for encoding, debugging, or working with binary data.

Text Input

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Hex Output

How Hex Encoding Works

Hexadecimal (base 16) encoding converts each character to its ASCII value, then represents that value using digits 0-9 and letters A-F.

Example: Text to Hex

"Hello" → 48 65 6c 6c 6f

H=72→48, e=101→65, l=108→6c, o=111→6f

Example: Hex to Text

48656c6c6f → "Hello"

Each pair of hex digits becomes one character

Hex encoding is commonly used in programming, debugging, cryptography, and blockchain development for representing binary data in a human-readable format.

FAQ

What is hexadecimal (hex)?: Hex is a base-16 number system using digits 0–9 and A–F. Each byte is typically shown as two hex characters, which makes binary data easier to read and debug.
How do I convert text to hex?: Paste your text into the converter and encode to hex. Decoding turns a hex string back into text. Watch for spaces, 0x prefixes, and odd-length strings when decoding.
Why is hex common in blockchain?: Addresses, transaction hashes, calldata, and many RPC fields are represented in hex (often with a 0x prefix). Converting helps when inspecting raw payloads or debugging smart-contract input.