regex101: JavaScript Substitution Workspace

^start of line

Non-Capturing Group(?:(?:https?:)?\/\/)?

?repeats the group contents below at most once:

Non-Capturing Group(?:https?:)?

?repeats the group contents below at most once:

httpthe literal text http (case sensitive)

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:(?:www|m(?:usic)?)\.)?

?repeats the group contents below at most once:

Non-Capturing Group(?:www|m(?:usic)?)

1st Alternativewww

wwwthe literal text www (case sensitive)

2nd Alternativem(?:usic)?

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

Non-Capturing Group(?:usic)?

?repeats the group contents below at most once:

usicthe literal text usic (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

yoututhe literal text youtu (case sensitive)

Non-Capturing Group(?:\.be|be\.com)

1st Alternative\.be

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

bethe literal text be (case sensitive)

2nd Alternativebe\.com

bethe literal text be (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

?repeats the group contents below at most once:

1st Alternativeshorts\/

shortsthe literal text shorts (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativelive\/

livethe literal text live (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

3rd Alternativev\/

vthe literal v (118₁₀ / 166₈ / 76₁₆) (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

4th Alternativee(?:mbed)?\/

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case sensitive)

Non-Capturing Group(?:mbed)?

?repeats the group contents below at most once:

mbedthe literal text mbed (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

5th Alternativewatch(?:\/|\?(?:\S+=\S+&)*v=)

watchthe literal text watch (case sensitive)

Non-Capturing Group(?:\/|\?(?:\S+=\S+&)*v=)

1st Alternative\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative\?(?:\S+=\S+&)*v=

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Non-Capturing Group(?:\S+=\S+&)*

*repeats the group contents below any number of times:

\S+any non-whitespace character, repeated at least once

=the literal = (61₁₀ / 75₈ / 3D₁₆)

\S+any non-whitespace character, repeated at least once

&the literal & (38₁₀ / 46₈ / 26₁₆)

v=the literal text v= (case sensitive)

6th Alternativeoembed\?url=https?%3A\/\/(?:www|m(?:usic)?)\.youtube\.com\/watch\?(?:\S+=\S+&)*v%3D

oembedthe literal text oembed (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

url=httpthe literal text url=http (case sensitive)

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

%3Athe literal text %3A (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:www|m(?:usic)?)

1st Alternativewww

2nd Alternativem(?:usic)?

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

youtubethe literal text youtube (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

watchthe literal text watch (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Non-Capturing Group(?:\S+=\S+&)*

v%3Dthe literal text v%3D (case sensitive)

7th Alternativeattribution_link\?(?:\S+=\S+&)*u=(?:\/|%2F)watch(?:\?|%3F)v(?:=|%3D)

2nd Alternativewww\.youtube-nocookie\.com\/embed\/

Group 1([\w-]{11})

Character Class[\?&#]?

\S*any non-whitespace character, repeated any number of times

$end of line

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

Search reference

Regular Expression

^(?:(?:https?:)?\/\/)?(?:(?:(?:www|m(?:usic)?)\.)?youtu(?:\.be|be\.com)\/(?:shorts\/|live\/|v\/|e(?:mbed)?\/|watch(?:\/|\?(?:\S+=\S+&)*v=)|oembed\?url=https?%3A\/\/(?:www|m(?:usic)?)\.youtube\.com\/watch\?(?:\S+=\S+&)*v%3D|attribution_link\?(?:\S+=\S+&)*u=(?:\/|%2F)watch(?:\?|%3F)v(?:=|%3D))?|www\.youtube-nocookie\.com\/embed\/)([\w-]{11})[\?&#]?\S*$

New

    various protocols (and lack of one):
https://www.youtube.com/watch?v=U9t-slLl30E
http://www.youtube.com/watch?v=U9t-slLl30E
//www.youtube.com/watch?v=U9t-slLl30E
www.youtube.com/watch?v=U9t-slLl30E

    and for each protocol
    various domains:
www.youtube.com/watch?v=U9t-slLl30E
m.youtube.com/watch?v=U9t-slLl30E
music.youtube.com/watch?v=OD3F7J2PeYU
youtube.com/watch?v=U9t-slLl30E
www.youtube-nocookie.com/embed/U9t-slLl30E
youtu.be/U9t-slLl30E

    and for each domain (despite -nocookie)
    various paths:
youtube.com/watch?v=U9t-slLl30E
youtube.com/watch/U9t-slLl30E
youtube.com/v/U9t-slLl30E
youtube.com/embed/U9t-slLl30E
youtube.com/e/U9t-slLl30E
youtube.com/live/9UMxZofMNbA
youtube.com/shorts/gOcxEMJSksg
youtube.com/oembed?url=http%3A//www.youtube.com/watch?v%3DU9t-slLl30E&format=json
youtube.com/attribution_link?a=JdfC0C9V6ZI&u=%2Fwatch%3Fv%3DU9t-slLl30E%26feature%3Dshare
youtube.com/attribution_link?a=8g8kPrPIi-ecwIsS&u=/watch%3Fv%3DU9t-slLl30E%26feature%3Dem-uploademail

    and for each path
    various parameters:
youtube.com/watch?v=U9t-slLl30E
youtube.com/watch?v=U9t-slLl30E&feature=shared
youtube.com/watch?v=U9t-slLl30E&t=1m02s
youtube.com/watch?v=U9t-slLl30E&lc=UgyYsn3aIQWSA19Esi54AaABAg
youtube.com/watch?v=Lo2qQmj0_h4&list=PLmXxqSJJq-yVWpRFGImHYZBQTuBGLjG4t&index=5&pp=iAQB8AUB
    in various order:
youtube.com/watch?feature=shared&v=U9t-slLl30E

    but not these:
(wrong ID)
youtube.com/watch?v=U$t-slLl30E
(too short ID)
youtube.com/watch?v=U9t-slLl30&t=10
(wrong or deprecated paths)
youtube.com/GitHub?v=U9t-slLl30E
youtube.com/?v=U9t-slLl30E
youtube.com/?vi=U9t-slLl30E
youtube.com/?feature=player_embedded&v=U9t-slLl30E
youtube.com/watch?vi=U9t-slLl30E
youtube.com/vi/U9t-slLl30E
(www.youtube-nocookie.com/embed/ only!)
youtube-nocookie.com/embed/U9t-slLl30E
www.youtube-nocookie.com/watch?v=U9t-slLl30E
http://www.youtube-nocookie.com/v/U9t-slLl30E?version=3&hl=en_US&rel=0
(playlist)
youtube.com/playlist?list=PLmXxqSJJq-yVWpRFGImHYZBQTuBGLjG4t

Regular Expressions 101

Regular Expression

Extraction