Regex
Tester

Test regular expressions with real-time match highlighting, capture groups, and plain-English explanations.

PATTERN & FLAGS

Flags
Active:/pattern/g

TEST STRING

HIGHLIGHTED MATCHES

Enter a test string to see match highlights.

MATCHES

0 found

No matches found for the current pattern and flags.

REGEX EXPLANATION

Enter a regex pattern to see a plain-English explanation.

COMMON PATTERNS

Click a preset to load a ready-to-test pattern and flag combination.

Learn more

Why is regex so powerful yet so hard to read? Let's look under the hood.

Regex Tester | ToolsCanvas