Purpose I wanted to make a regex that just works. This is it for ECMAScript engines. Capabilities ...

handles both JWS (3 segments) and JWE (5 segments) remove the ending (?:(?:... to handle JWS only payload (2nd segment) may be empty both header (1st segment) and payload are expected to start with eyJ, a base64 encoded start of JSON object {" accepts only proper Base64url encoding (RFC 4648) with...

URI syntax matcher based on RFC 3986 a.k.a. Uniform Resource Identifier (URI): Generic Syntax #URL #URI #RFC #3986 #RFC3986

URI-reference syntax matcher based on RFC 3986 a.k.a. Uniform Resource Identifier (URI): Generic Syntax #URL #URI #RFC #3986 #RFC3986

matches for any markdown Masked link text detected `` not detected (not valid(on most platforms))

This regex can be used to validate IPv4 and IPv6 addresses as well as CIDR ranges

Number string where only zeros follow the first digit

The CMS, who maintain these codes, describe the format as:- "HCPCS Level II codes (also known as alpha-numeric codes) consist of a single alphabetical letter followed by 4 numeric digits." (https://www.cms.gov/medicare/coding-billing/healthcare-common-procedure-system) NOTE: This regex will not ide...

The CMS, who maintain these codes, describe the format as:- "HCPCS Level II codes (also known as alpha-numeric codes) consist of a single alphabetical letter followed by 4 numeric digits." (https://www.cms.gov/medicare/coding-billing/healthcare-common-procedure-system) NOTE: This regex will not iden...

Basic email address validation example

Extract html element & content

wa.me/phonenumber

Integers Decimal value starts by comas or dots Handle spaces, "_" characters Signed or not --> Visit https://flymeth.net to view my works

^ : Start of the line. ((\\.,;:@"]+(\.\\.,;:@"]+)*)|(".+")) : This is the local part of the email, before the @ symbol. It can be one of two formats: \\.,;:@"]+(\.\\.,;:@"]+)* : This means one or more characters that are not special characters (like `, (, ), [, ], \, ,, ;, :, @, ") followed by a p...

xd sorun olabilir xd iki karakter çıkartıldı k6ZyRC

lol regex

Gets the ID of a YouTube Video from any link to it.

password validator

This version of the regex is less permissive than the w3c documentation.. It matches only the common attribute syntax.

This regex is based on the specifications in the w3c documentation. The rules are* very permissive, and some* of this characters actually lead to errors in browsers.