Regular Expressions 101

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Community Patterns

Search among 18,040 community submitted regex patterns...

1

US Phone Number Validation (with optional country code and separators)

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Strong Password Validation (at least 8 characters, one uppercase, one lowercase, one number, one special character

PCRE2 (PHP >=7.3)

corridanandco.com

Submitted by anonymous - 4 months ago

1

Hexadecimal Color Code Validation

PCRE2 (PHP >=7.3)

murdochleaks.org

Submitted by anonymous - 4 months ago

1

HTML Tag Matching

PCRE2 (PHP >=7.3)

downtimeonline.net

Submitted by anonymous - 4 months ago

1

HTML Tag Matching

PCRE2 (PHP >=7.3)

downtimeonline.net

Submitted by anonymous - 4 months ago

1

Match a valid MAC address (with optional delimiters)

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Match a string with repeating characters separated by a comma (e.g., "a,b,c")

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Match a valid GUID/UUID

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Match a string with optional trailing punctuation

PCRE2 (PHP >=7.3)

expofestival.org

Submitted by anonymous - 4 months ago

1

Match a string with a specific pattern

PCRE2 (PHP >=7.3)

elderbrendabradley.com

Submitted by anonymous - 4 months ago

1

Match a string with no consecutive duplicate characters

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Match a valid Twitter handle

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Match a valid Twitter handle

PCRE2 (PHP >=7.3)

Submitted by anonymous - 4 months ago

1

Match a string with specific length and content

PCRE2 (PHP >=7.3)

loggerblogger.net

Submitted by anonymous - 4 months ago

1

Match a string with specific length and content

PCRE2 (PHP >=7.3)

loggerblogger.net

Submitted by anonymous - 4 months ago

1

Match a string with nested brackets

PCRE2 (PHP >=7.3)

loggerblogger.net

Submitted by anonymous - 4 months ago

1

Match a string with alternating uppercase and lowercase letters

PCRE2 (PHP >=7.3)

loggerblogger.net

Submitted by anonymous - 4 months ago

1

Match a date in DD-MM-YYYY format

PCRE2 (PHP >=7.3)

memoryjarapp.com

Submitted by anonymous - 4 months ago

1

Match Word Characters with Optional Hyphens

PCRE2 (PHP >=7.3)

loggerblogger.net

Submitted by anonymous - 4 months ago

1

Match Nested Parentheses and Brackets

PCRE2 (PHP >=7.3)

memoryjarapp.com

Submitted by anonymous - 4 months ago

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Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/

^[0-9A-F]{32}$

/

img

Open regex in editor

Description

A simple regex to match API keys for OpenWeather map. Matches 32 hexadecimal character strings.

Submitted by anonymous - a year ago