IP Address Regex Generator and Validator

Generate Regex and Validate IP Address using regular expression


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IP Address Regex Generator and Validator

Enter your regular expression and use validator below to verify different ip address inputs

IP Regex Pattern

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Valid IP Address Checker

You can enter different ip address to validate for above generated Regular expression. You can also copy other ip address regex patterns and use as validator

Validate IP Address
ipv4 : :    2001:0000:3238:DFE1:0063:0000:0000:FEFB

What is an IP Address Regex Generator?

It generates regular expression patterns based on rules that can be used to validate whether a given string represents a valid IPv4 or IPv6 address.

IPv4 Regular Expression

The most common regular expression for validating IPv4 addresses is:
  • (?:^|\s)([a-z]{3,6}(?=://))?(://)?((?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.
  • (?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.
  • (?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.
  • (?:25[0-5]|2[0-4]\d|[01]?\d\d?))
  • (?::(\d{2,5}))?(?:\s|$)
This regex breaks down into the following components:
  • ^: Matches the beginning of the string
  • (?:25[0-5]|2[0-4]\d|[01]?\d\d?) Matches the octets
  • \.: Matches a literal period
  • $: Matches the end of the string
Example of a valid IPv4 address -

IPv6 Regular Expression

  • Validating IPv6 addresses requires a more complex regular expression due to their hexadecimal representation and colons. A common IPv6 regex is:
  • (?<[!:.\w])(?:[A-Fa-z0-9]{1,4}:){7}[A-Fa-z0-9]{1,4}(?![:.\w])
  • Example of a valid IPV6 address - 2001:0000:3238:DFE1:0063:0000:0000:FEFB

Advantages of using our IP Regex Validator tool

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Our IP Address regex tool is simple, free, online and supports both ipv4 and ipv6 patterns. You can use this as ip address validator or ip regex generator and use it in your application.
Advantages of Using Regular Expressions for IP Address Validation
Regular expressions offer several advantages for IP address validation:
  • Accuracy: Regex can precisely identify valid IP addresses based on strict formatting rules.
  • Flexibility: Regex can handle various IP address formats, including IPv4, IPv6 ranges.
  • Efficiency: Regex can validate IP addresses quickly and efficiently, making them suitable for large datasets.
  • Integration with Programming Languages
Regular expressions can be integrated into various programming languages, enabling developers to validate IP addresses within their applications.

IP Address Regular Expression Reference Table

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Input Expression Valid IP Address Example
Valid IPv4 Address (?:^|\s)([a-z]{3,6}(?=://))?(://)?((?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?))(?::(\d{2,5}))?(?:\s|$)
Valid IPV6 Address (?<![:.\w])(?:[A-Fa-z0-9]{1,4}:){7}[A-Fa-z0-9]{1,4}(?![:.\w]) 2001:0000:3238:DFE1:0063:0000:0000:FEFB
Valid IPv4 and IPv6 (^(((([1]?\d)?\d|2[0-4]\d|25[0-5])\.){3}(([1]?\d)?\d|2[0-4]\d|25[0-5]))|([\da-fA-F]{1,4}(\:[\da-fA-F]{1,4}){7})|(([\da-fA-F]{1,4}:){0,5}::([\da-fA-F]{1,4}:){0,5}[\da-fA-F]{1,4})$) a760:ab34:c468:9672:999d:1564:1d69:b226,

Frequently Asked Questions on IP Address Regex Generator

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  • Regex stands for Regular Expression and it's a pattern of characters in a specific format that can act as a rule and can be used to check adherence or match of an input text to the rules.
    A ip address regex is a pattern for matching ip address.
    The validator matches this input with any ip address of ipv4 or ipv6 (ip validation)

  • This regex pattern finds the match for ipv4 with optional match of protocol and port.
    regex ipv4 - (?:^|\s)([a-z]{3,6}(?=://))?(://)?((?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?))(?::(\d{2,5}))?(?:\s|$)

  • regex ipv6 (?<![:.\w])(?:[A-Fa-z0-9]{1,4}:){7}[A-Fa-z0-9]{1,4}(?![:.\w]) .
    This regex pattern finds the match for ipv6.