Text to Hexadecimal Converter

Convert text to hexadecimal encoding online. Choose UTF-8 or ASCII, set separator style and case, and decode hex back to text. Runs entirely in your browser.

Text and Hex — Both Directions

Convert any text to its hexadecimal byte representation in seconds. Full UTF-8 support means emojis, accented characters, and non-Latin scripts all encode correctly. Use the swap button to reverse the direction and decode hex back to text just as easily.

Text ↔ Hexadecimal

Why use this Text to hexadecimal converter

Network & Protocol Work

Many network tools and protocol analyzers display raw data as hex bytes. This converter helps you read and prepare those values without switching to a separate tool.

Debugging & Byte Inspection

Inspecting raw byte values is essential when debugging encoding issues, parsing binary formats, or verifying character mappings. Hex output makes each byte visible at a glance.

Cryptography & Security

Hash functions, encryption keys, and ciphertexts are routinely exchanged in hex format. Convert plaintext inputs to hex for direct use in crypto functions and security tools.

Safe, In-Browser Conversion

All encoding and decoding runs locally in your browser — no data is sent to any server. Use it freely on sensitive text, credentials, or any content you prefer to keep private.

How this Text to Hexadecimal Converter works

Type or paste text into the input field and the Text to Hexadecimal Converter translates every character into its hexadecimal byte value. UTF-8 encoding is the default, meaning accented letters, emojis, and non-Latin scripts all encode correctly as their multi-byte sequences. ASCII mode is available when you know the input contains only standard 7-bit characters. Choose between uppercase hex (4A) or lowercase (4a), and pick a separator — space, dash, comma, or none — to match the format expected by your target system.

Use the swap button to flip into hex-to-text mode and decode a hex string back to readable text. The decoder strips spaces, dashes, and commas automatically before processing. The byte count or character count appears below the output so you can confirm the conversion at a glance. Everything runs locally in your browser — no data is sent to any server.

How to use this Text to Hexadecimal Converter

1

Enter your text

Type or paste the text you want to convert into the input area. Or load a sample to see how it works.

2

Set your options

Choose the encoding (UTF-8 or ASCII), separator style, and letter case for the hex output.

3

Convert and copy

Click Convert to get the hexadecimal output, then copy it or use the swap button to reverse the conversion.

Example Usage

Converting text to uppercase hex with space separator:

Input
Hello
Output
48 65 6C 6C 6F

Frequently Asked Questions

What is hexadecimal encoding?
Hexadecimal (hex) is a base-16 number system that uses digits 0–9 and letters A–F. In text encoding, each character is represented by its numeric byte value written in hex — for example, the letter A becomes 41 in hex.
What is the difference between UTF-8 and ASCII encoding?
ASCII only covers the first 128 characters (standard English letters, digits, and punctuation). UTF-8 covers the full Unicode range including accented letters, emojis, and characters from non-Latin scripts. Use UTF-8 for most modern text and ASCII only when you know your input is purely ASCII.
Why would I need to convert text to hex?
Common use cases include encoding data for network protocols, representing binary data in a readable format, debugging byte-level communication in software, generating color codes, and working with cryptographic or encoding functions that expect hex input.
Can I reverse the conversion — hex back to text?
Yes. Click the Swap button to switch to hex-to-text mode and paste your hex string. The tool strips spaces, dashes, and commas automatically before decoding.
What separators are supported?
You can output hex bytes separated by spaces (48 65 6C), dashes (48-65-6C), commas (48, 65, 6C), or with no separator at all (48656C). All formats are accepted in hex-to-text mode as well.
Does the tool support emojis and non-Latin characters?
Yes, when UTF-8 encoding is selected. Emojis and characters like Chinese, Arabic, or accented Latin letters are encoded as their multi-byte UTF-8 sequences and decoded back correctly.
Is my text sent to a server?
No. All conversion runs locally in your browser. Your text never leaves your device.
What is the difference between uppercase and lowercase hex?
Both are valid. Uppercase hex (4A 6F) is common in documentation and hardware references. Lowercase (4a 6f) is often used in programming contexts. Both are accepted as input in hex-to-text mode.
Can I convert a very long piece of text?
Yes, the tool handles large inputs without any limit enforced by the tool itself. Browser performance is the practical ceiling, and typical text files will convert instantly.
Why does my character produce more than two hex digits?
Non-ASCII characters like é or 中 take more than one byte in UTF-8, so they produce four or six hex digits. This is normal and expected behavior for multi-byte Unicode characters.

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The Text to Hexadecimal Converter is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.

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