Regular Expressions 101

Pro

Non-Capturing Group(?:youtu\.?be(?:-nocookie)?(?:\.com)?(?:\/|watch\?v=|embed\/)+)

yoututhe literal text youtu (case sensitive)

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

bethe literal text be (case sensitive)

Non-Capturing Group(?:-nocookie)?

?repeats the group contents below at most once:

-nocookiethe literal text -nocookie (case sensitive)

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

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

Non-Capturing Group(?:\/|watch\?v=|embed\/)+

+repeats the group contents below at least once:

1st Alternative\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativewatch\?v=

watchthe literal text watch (case sensitive)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

v=the literal text v= (case sensitive)

3rd Alternativeembed\/

embedthe literal text embed (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 1([\w-]+)

Character Class[\w-]+

+matches at least one character from the set below:

\wany word character

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

(?:youtu\.?be(?:-nocookie)?(?:\.com)?(?:\/|watch\?v=|embed\/)+)([\w-]+)

New

www.youtube.com/watch?v=dQw4w9WgXcQ
http://www.youtube.com/watch?v=dQw4w9WgXcQ
https://youtu.be/dQw4w9WgXcQ
https://www.youtube.com/embed/dQw4w9WgXcQ
https://www.youtube-nocookie.com/embed/dQw4w9WgXcQ
https://youtu.be/dQw4w9WgXcQ?t=0