Regex Tester

Test regular expressions and inspect matches and capture groups

Enter a regular expression and test text to inspect matches, indexes and captured groups in real time.

Regex Settings

Enter the JavaScript regex pattern without wrapping / /.

Regex Pattern

//gi

Enter the text content to match.

Chars: 68Lines: 5Bytes: 68Matches: 2

Matched text is highlighted below.

Match Summary

#1 [12, 34) support@chatworkon.com
#2 [35, 52) admin@example.org

Inspect each match, index range and captured groups.

#1 [12, 34)

22 chars

Matched Text

support@chatworkon.com

#2 [35, 52)

17 chars

Matched Text

admin@example.org

Tip

If the g flag is disabled, only the first match is returned.
Do not include wrapping slashes. Enter \d+ instead of /\d+/.
Complex regex patterns may be expensive on very large text. Keep test input reasonable.

Real-time matching

Enter a pattern and test text to instantly inspect match count, indexes and matched text.

Common flags

Supports g, i, m, s and u flags for most JavaScript regex testing use cases.

Group inspection

Inspect captured groups to debug complex regular expressions more easily.

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