Try a regular expression against any text with live match highlighting, capture groups and flags.
Write a pattern, paste text, see matches.
Type your regular expression into the pattern field.
Paste the text you want to match against.
Toggle the flags you need — g, i, m, s or u.
Read highlighted matches and capture groups live.
Built for speed, privacy and reliability — on any device.
Matches light up in your test string as you type the pattern.
Toggle global, ignore-case, multiline, dotall and unicode flags with checkboxes.
Every match and its capture groups are listed in a clear table.
Matching runs locally — your patterns and data never leave the browser.
No account, no limits.
The pattern has a syntax error, like an unclosed bracket or a stray backslash. The message includes the parser's exact complaint.
Without g only the first match is found. With g, every match in the text is highlighted and listed.
Yes — any parenthesised groups appear in a table under the matches, numbered per match.
No. Matching runs entirely in your browser.
The tool works in all modern browsers including Google Chrome, Mozilla Firefox, Microsoft Edge, Safari and Opera. We recommend keeping your browser up to date for the best experience.
Step-by-step guide with screenshots and tips.
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