Useful Regex Patterns

Will match dates with dashes, slashes or with spaces (e.g. dd-mm-yyyy dd/mm/yyyy dd mm yyyy), and optional time separated by a space or a dash (e.g. dd-mm-yyyy-hh:mm:ss or dd/mm/yyyy hh:mm:ss).

Match opening and closing HTML tags with content between

Match valid URL slugs

Match URL with optional protocol

Match integers or floats that are positive

Match phone numbers at least 3 digits long

Match the ID of a youtube channel URL

Matches US ZIP, ZIP+4, and Canadian Postal Codes

Matches the content in between [img][/img]. Useful for making dynamic WYSIWYG editors

Match times in 24 hour format

A string between 3 and 16 characters, allowing alphanumeric characters and hyphens and underscores

Verify that there is an @ symbol with something before it

Match IP v4 addresses

Match whole numbers below zero

Match integers or floats that are negative

Match new lines within text

Match standard CSS comments

Matches BR ZIP/Postal Code

Matches valid code for a brainfuck program.

Will match a valid date and times in the ISO-8601 format, excludes durations.

RGB hex colors

Match the src attribute of an HTML image tag

Match IP v6 addresses

Match whole numbers, above or below zero

Match integers or floats that are positive or negative

Match the ID of a youtube video URL

Matches opening and closing shortcode tags with content in-between them.

Matches valid Morse Code