RegEx Tester

Fast & Browser-Based

Your data never leaves your browser.

Test and debug your Regular Expressions online.

Regex Pattern

//gm

Flags

Test String

Matches (7)

#1elloIndex: 1
#2worldIndex: 6
#3hisIndex: 14
#4isIndex: 18
#5aIndex: 21
#6testIndex: 23
#7stringIndex: 28

Regex Quick Reference

Digit\d

Word Char\w

Whitespace\s

Start of Line^

End of Line$

Any Character.

Zero or more*

One or more+

Optional?

Group(abc)

Ora|b

Character Set[abc]

Click a pattern to append it to your regex.

Regular Expression (RegEx) Tester

Regular expressions are powerful but tricky to get right. This tool allows you to write, test, and debug your RegEx patterns against text in real-time.

- Validating email formats

- Extracting phone numbers

- Scraping data patterns

- Cleaning up text

Matches are highlighted instantly, and captured groups are displayed clearly to help you refine your logic.

Usage

1
Enter your RegEx pattern in the top box (e.g., `/[a-z]+/`).
2
Enter your test string in the bottom box.
3
View matches highlighted instantly.
4
Don't forget to set flags like 'Global (g)' or 'Case Insensitive (i)'.

Next Steps Suggestions

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