Text to Hex

How do I use the Text to Hex?

1. 1

   Paste text into the input area.

2. 2

   See the hex-encoded UTF-8 bytes appear instantly.

3. 3

   Copy or download the hex output.

What is the Text to Hex?

The Text to Hex tool converts your text into hexadecimal byte values. Input is treated as UTF-8, so multi-byte characters (emoji, non-Latin scripts) are represented as several hex bytes.

Hex is a compact, human-friendly way to inspect the underlying bytes of a string.

Who is the Text to Hex for?

Developers debugging network traffic, security researchers analysing payloads, testers preparing binary fixtures, and students learning byte-level encoding.

Why use the Text to Hex?

• UTF-8 aware.
• Space-separated bytes.
• Live preview.
• Handles the full Unicode range.
• Runs entirely offline.

When should I use the Text to Hex?

• Inspecting the bytes of a suspicious string.
• Preparing a test vector for a crypto function.
• Comparing two visually identical strings byte for byte.
• Teaching how UTF-8 encodes characters.
• Debugging why a name breaks in a database.

Is the Text to Hex safe and private?

Yes. This tool runs entirely inside your browser - your text is never uploaded, stored on our servers or shared with third parties. You can even disconnect from the internet after the page loads and it will keep working. That makes it safe for confidential notes, drafts, private messages and unpublished work.

How do I get the best results from the Text to Hex?

• Two hex digits equal one byte.
• Non-ASCII characters usually take 2–4 bytes in UTF-8.
• Strip spaces for tightly-packed hex if the target requires it.
• Use Hex to Text to verify the round-trip.

Frequently asked questions

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