iHateRegex

Matches a date in the format dd/mm/yyyy , dd-mm-yyyy or dd.mm.yyyy

Credit card number is the card unique identifier found on payment cards.

Latitude and longitude values are usually found comma seperated to denote a location on the globe

A username is a unique identifier given to accounts in websites and social media

In computer languages, identifiers are tokens (also called symbols) which name language entities

Unnecessarily complicated email regex that works "more than" most of the times

Han characters are a common feature of written Chinese (hanzi), Japanese (kanji), and Korean (hanja)

Hyphen-separated Jira project key and ticket issue number

Hashtags are metadata tags used on social networks that categorizes the content of the post

Matches an ip address(version 4)

Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol. This is used to provide identification for devices in a network.

Matches any printable ascii character

A simple expression to match an ethernet MAC address

E.164 is a telephone number format to ensure consistency

Username identifier for the VOIP application Discord

A bitcoin address is the address string which identifies a bitcoin cryptocurrency wallet.

Hyphen-separated universally unique identifier (UUID)

Match a phone number with "-" and/or country code.

Match a SemVer as specified in https://semver.org/

A DOI is an identifier/handle used to identify objects uniquely