Free online regex group extractor — extract named and numbered capture groups from regex matches instantly in your browser. No data is stored. Shows all groups for each match with clear formatting.
Regex pattern with capture groups
Regex flags
Free online regex group extractor — extract named and numbered capture groups from regex matches instantly in your browser. No data is stored. Shows all groups for each match with clear formatting.
Runs entirely in your browser. No data is sent to our servers.
Use capture groups to extract year, month, and day from a date string
Regex Tester
Free online regex tester — test regular expressions with live match highlighting and position tracking instantly in your browser. No data is stored. Shows match positions and visual highlighting of matched text.
Regex Explainer
Free online regex explainer — break down any regular expression into plain English descriptions instantly in your browser. No data is stored. Explains character classes, quantifiers, groups, anchors, and lookaheads.
Regex Replace
Free online regex find and replace — search text with regular expressions and replace matches with custom patterns instantly in your browser. No data is stored. Supports capture group references ($1, $2) in replacement strings.
Regex Split
Free online regex text splitter — split text into parts using regular expression delimiters instantly in your browser. No data is stored. Supports custom flags and configurable result limits.