Utilities lainnya
Regular Expression Tester
Test regex patterns against sample text live.
//g
Test text
2 matches
Contact: ada@example.com and team@dev.example then invalid@x
#1 @ 9ada@example.com
$1ada
$2example.com
#2 @ 29team@dev.example
$1team
$2dev.example
Guide & explanation
The Regular Expression Tester runs a JavaScript RegExp pattern against sample text live, with match highlighting and group details.
Flags
| Flag | Meaning |
|---|---|
g | global — every match, not just the first |
i | ignore case |
m | ^ and $ match at each line |
s | . also matches newlines |
u | Unicode mode |
y | sticky — match exactly at lastIndex |
Example
pattern: (\w+)@(\w+\.\w+)
text : contact ada@example.com
match : ada@example.com group 1: ada group 2: example.com
Reading the results
- The match count and highlights on the test text.
- Each match shows its index, numbered groups (
$1,$2), and named groups (?<name>). - An invalid pattern shows the error message from the RegExp engine.