Regular Expressions 101

Explanation

Pro

Group scheme(?<scheme>https?|s?ftp|wss?|git)

1st Alternativehttps?

httpthe literal text http (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

2nd Alternatives?ftp

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

ftpthe literal text ftp (case sensitive)

3rd Alternativewss?

wsthe literal text ws (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

4th Alternativegit

gitthe literal text git (case sensitive)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group subDomain(?<subDomain>[a-z0-9-]{1,63}\.(?:[a-z0-9-]{1,63}\.)*)?

?repeats the group contents below at most once:

Character Class[a-z0-9-]{1,63}

{1,63}matches between 1 and 63 characters from the set below:

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:[a-z0-9-]{1,63}\.)*

*repeats the group contents below any number of times:

Character Class[a-z0-9-]{1,63}

{1,63}matches between 1 and 63 characters from the set below:

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group domain(?<domain>[a-z0-9-]{1,256})

Character Class[a-z0-9-]{1,256}

{1,256}matches between 1 and 256 characters from the set below:

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[.]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group tld(?<tld>[a-z0-9]+)

Character Class[a-z0-9]+

+matches at least one character from the set below:

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

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

Non-Capturing Group(?::(?<port>[0-9]{1,5}))?

?repeats the group contents below at most once:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group port(?<port>[0-9]{1,5})

Character Class[0-9]{1,5}

{1,5}matches between 1 and 5 characters from the set below:

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

Group path(?<path>\/.*/?)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

.*any character (except for line terminators), repeated any number of times

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

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

27 tokens

Regular Expression

(?<scheme>https?|s?ftp|wss?|git):\/\/(?<subDomain>[a-z0-9-]{1,63}\.(?:[a-z0-9-]{1,63}\.)*)?(?<domain>[a-z0-9-]{1,256})[.](?<tld>[a-z0-9]+)(?::(?<port>[0-9]{1,5}))?(?<path>\/.*/?)?

New

https://www.google.com
https://google.com:65535
https://www.google.com/search
https://google.com/search
https://www.google.com/
https://google.com/

http://www.google.com
http://google.com
http://www.google.com/search
http://google.com/search
http://www.google.com/

http://google.com/


sftp://
ftp://
ws://
wss://
git://
git://

https://my.website-is.cool.name:5673/thing?456%20asd#foo

Substitution

https://www.google.com
https://google.com:65535
https://www.google.com/search
https://google.com/search
https://www.google.com/
https://google.com/

http://www.google.com
http://google.com
http://www.google.com/search
http://google.com/search
http://www.google.com/

http://google.com/


sftp://
ftp://
ws://
wss://
git://
git://

https://my.website-is.cool.name:5673/thing?456%20asd#foo