Regular Expressions 101

Group 1(https?:\/\/www\.(?:filepicker\.io\/|filestack\.com\/)api\/file\/[\w+?&=\/]+)

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)

wwwthe literal text www (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:filepicker\.io\/|filestack\.com\/)

1st Alternativefilepicker\.io\/

filepickerthe literal text filepicker (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

iothe literal text io (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativefilestack\.com\/

filestackthe literal text filestack (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

apithe literal text api (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

filethe literal text file (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[\w+?&=\/]+

+matches at least one character from the set below:

\wany word character

+the literal + (43₁₀ / 53₈ / 2B₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

&the literal & (38₁₀ / 46₈ / 26₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

\/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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(https?:\/\/www\.(?:filepicker\.io\/|filestack\.com\/)api\/file\/[\w+?&=\/]+)

New

![image](https://www.filepicker.io/api/file/12x3DD5667dxfjdf/convert?w=600)
<img src="https://www.filepicker.io/api/file/someotherfile" />
<a href='https://www.filestack.com/api/file/anothersdf?sdf=3&dfdf=1'>link</a>

Regular Expression

Substitution