Text to HEX Converter Online — Encode ASCII Strings to Hexadecimal

Convert plain text strings to hexadecimal (hex) online. Generate space-separated hex bytes, 0x notation, and byte arrays for programming.

✓ Converts words, code snippets, and sentences into clean hex byte streams

✓ Customizable spacing options (spaced bytes or continuous hex string)

✓ Accurate UTF-8 byte translation

✓ Instant copy for C/C++, Python, and assembly byte buffers

How It Works

  1. Type text into the input field.
  2. Each character code is converted to a two-digit hexadecimal string.
  3. Copy the resulting hex code.

Frequently Asked Questions

Why use hexadecimal instead of binary?

Hexadecimal is much more concise for humans: each hex digit represents exactly 4 bits (a nibble), so two hex digits represent an entire 8-bit byte.