IP to Hex Converter

Convert IPv4 and IPv6 addresses to their hexadecimal representations.

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IP to Hex Converter
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About IP to Hex Converter

This tool converts standard IPv4 and IPv6 addresses into their hexadecimal representations. This can be useful for network programming, data analysis, or when dealing with systems that require IP addresses in hex format.

For an IPv4 address (e.g., 192.168.1.10), each of the four decimal octets is converted into its 2-digit hexadecimal equivalent (e.g., C0.A8.01.0A or C0A8010A).

For an IPv6 address (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334 or its abbreviated form 2001:db8:85a3::8a2e:370:7334), the tool first expands any :: abbreviation and then converts each 16-bit segment into its 4-digit hexadecimal equivalent.

You can customize the output by choosing a separator between the hex segments and selecting either uppercase or lowercase for the hexadecimal characters. All conversions are done client-side in your browser.

How to Use This Tool

  • Enter the IPv4 or IPv6 address into the "Enter IP Address" field.
  • Select your desired "Output Separator" for the hexadecimal parts. Choose "None" for a continuous hex string.
  • If you choose "Custom" separator, an input field will appear for your specific separator.
  • Select the "Hexadecimal Case" (Uppercase or Lowercase).
  • The hexadecimal representation will appear in the "Output Hexadecimal" area automatically as you type or change options. You can also click "Convert IP to Hex".

Frequently Asked Questions

How does IPv4 to Hex conversion work?

An IPv4 address consists of four decimal numbers (octets) from 0 to 255, separated by dots. Each octet is converted to its two-digit hexadecimal equivalent. For example, 192.168.1.1 becomes C0.A8.01.01 (if dot separator is used).

How does IPv6 to Hex conversion work?

An IPv6 address consists of eight 16-bit segments, written in hexadecimal and separated by colons. If your input IPv6 address uses the :: abbreviation for consecutive zero segments, this tool will first expand it to the full 8-segment representation. Then, each segment is ensured to be 4 hexadecimal digits (padded with leading zeros if necessary). For example, 2001:db8::1 expands to 2001:0db8:0000:0000:0000:0000:0000:0001, and its hex representation (with no separator) would be 20010DB8000000000000000000000001.

What if I enter an invalid IP address?

The tool includes basic validation for IPv4 and IPv6 formats. If the input is not recognized as a valid IP address, an error message will be displayed.

Is my IP address data sent to a server?

No. All IP address parsing and conversion to hexadecimal are performed locally in your web browser using JavaScript. Your input data is never transmitted to any external server.

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