Regex Tester
Test, debug, and inspect regular expression matches interactively.
Matches
No matches found.
Frequently Asked Questions
What regex flavors does this tool support?
This tool uses JavaScript regex (ECMAScript flavor), which covers most real-world use cases including lookahead and Unicode support.
What are regex flags?
Flags modify matching behavior. "g" (global) finds all matches, "i" (case-insensitive) ignores case, "m" (multiline) matches across newlines.