All toolsMultilities
Regex Tester
Test regular expressions with live match highlighting
//
Matches · 2
Hello world from Multilities
[0]Hello world($1=Hello, $2=world)
[1]from Multilities($1=from, $2=Multilities)
How it works
Regex Tester — Test regular expressions with live match highlighting. All processing happens in your browser — no upload, no signup, no email required. Free forever.
Frequently asked questions
Which regex flavour does this support?
JavaScript's native RegExp engine, the same one used in browsers and Node.js. ECMAScript flags g, i, m, s, u, y are supported.
Can I see capture groups?
Yes. Each match shows captured groups numbered $1, $2, …. Named groups appear in the JSON output of each match.
Why does '.*' match too much?
By default '.' doesn't match newlines. Toggle the 's' (dotAll) flag if you need '.' to match every character including line breaks.
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