Regex Tester

Test regular expressions with real-time match highlighting and capture group details.

Pattern

Test String

Matches:9(1 capture groups)

Match Details

#1Hellopos 0

$1: H

#2Worldpos 6

$1: W

#3Thispos 12

$1: T

#4Regexpos 22

$1: R

#5Testerpos 28

$1: T

#6Extractpos 35

$1: E

#7WORDSpos 43

$1: W

#8Likepos 49

$1: L

#9Thesepos 54

$1: T

Highlighted Preview

Hello World This is a Regex Tester Extract WORDS Like These 123-456-7890

About Regex

Tests JavaScript-compatible regular expressions. Supports all standard flags (g, i, m, s, u, y). Match positions and capture group values are displayed for each result. All processing is client-side.