How do I test a regular expression online?

Enter your regex pattern in the top field at editpdf.co.in/tools/regex-tester, and your test string in the text area below. Matches are highlighted in real-time as you type.

What regex flags can I use?

The tool supports the standard JavaScript regex flags: g (global — find all matches), i (case-insensitive), m (multiline), s (dotAll), and u (unicode).

How do I view regex capture groups?

After a match is found, the tool displays all capture groups and their values in the match details panel below the test string.

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Regex Tester

Test regex patterns against any string in real-time. View match groups, set flags (global, case-insensitive, multiline), and see full match details.

Regular Expression

/ /

g i m s

Ready

Test String

Match Highlights

Matches will be highlighted here…

Match Details (0 matches)

No matches yet.

Regex Tester

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