Regular Expressions 101

<imgthe literal text <img (case sensitive)

Negated Character Class[^>]+

+matches at least one character outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

data-src=the literal text data-src= (case sensitive)

Group 1("[^"]+")

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]+

+matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^>]*

*matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

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

<img[^>]+data-src=("[^"]+")[^>]*>

New

<img src="old.jpg" data-src="new.jpg">
<img data-src="new2.jpg" src="old2.jpg">

<img src=$1 data-src=$1>