regex101: JavaScript Match Workspace

Non-Capturing Group(?:^|[^\(\/])

1st Alternative^

^start of string

2nd Alternative[^\(\/]

Negated Character Class[^\(\/]

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\ban ASCII word boundary

Group 1((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/?)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\)){0,}(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s\!()\[\]{};:\'\"\.\,<>?«»“”‘’]){0,})

Non-Capturing Group(?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/?)

1st Alternative[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])

Character Class[a-z]

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

Character Class[\w-]+

+matches at least one character from the set below:

\wany word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:\/{1,3}|[a-z0-9%])

1st Alternative\/{1,3}

\/{1,3}the literal / (47₁₀ / 57₈ / 2F₁₆) , repeated between 1 and 3 times

2nd Alternative[a-z0-9%]

Character Class[a-z0-9%]

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

%the literal % (37₁₀ / 45₈ / 25₁₆)

2nd Alternativewww\d{0,3}[.]

wwwthe literal text www (case insensitive)

\d{0,3}a digit, repeated between 0 and 3 times

Character Class[.]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

3rd Alternative[a-z0-9.\-]+[.][a-z]{2,4}\/?

Character Class[a-z0-9.\-]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[.]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[a-z]{2,4}

{2,4}matches between 2 and 4 characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case insensitive)

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\)){0,}

{0,}repeats the group contents below any number of times:

1st Alternative[^\s()<>]+

Negated Character Class[^\s()<>]+

+matches at least one character outside the set below:

\sany whitespace character

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

2nd Alternative\(([^\s()<>]+|(\([^\s()<>]+\)))*\)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 2([^\s()<>]+|(\([^\s()<>]+\)))*

*repeats the group contents below any number of times:

1st Alternative[^\s()<>]+

Negated Character Class[^\s()<>]+

2nd Alternative(\([^\s()<>]+\))

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Non-Capturing Group(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s\!()\[\]{};:\'\"\.\,<>?«»“”‘’]){0,}

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

(?:^|[^\(\/])\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/?)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\)){0,}(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s\!()\[\]{};:\'\"\.\,<>?«»“”‘’]){0,})

New

http://google.com

[some text](http://google.com)

[some text](http://google.com "title")


google.com

www.google.com