Extract IPv4 and IPv6 Addresses from Any Text Extract IPv4 and IPv6 addresses from text.

The tool's core functionality relies on regular expressions to identify IP address patterns in the input string. It utilizes three distinct patterns: one for IPv4, one for full IPv6 notation, and another for shortened IPv6 notation with trailing colons. The IPv4 pattern, /\b(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\b/g, ensures that each octet falls within the 0-255 range. The React useCallback hook is used to memoize the onProcess function, which contains the IP extraction logic, preventing unnecessary re-renders of the component.

The extracted addresses are then stored in separate arrays for IPv4 and IPv6 using the filter method and tested with regular expressions to determine their type. The results are formatted into a human-readable string with the address version and count, followed by each individual address indented for clarity. If no IP addresses are found, it returns a message indicating so. The use of TypeScript and React enables a structured approach to building the tool's user interface, with TextToolLayout component handling input and output rendering.

The Set data structure is used to eliminate duplicate IP addresses from the combined array of extracted IPv4 and IPv6 addresses. This ensures that each address appears only once in the final output, even if it was matched by multiple patterns or appeared multiple times in the original input string. The resulting array of unique IP addresses is then processed based on their version, with IPv4 addresses grouped separately from IPv6 addresses.