re
Regex Tester
Test a regular expression with the regex engine of the language you pick — Python, C#,
Go or C++ — each running in WebAssembly in a sandbox in your browser. Engines differ:
Go's RE2 has no lookaround, C++'s std::regex has no named groups.
Input
Use $name or $1 placeholders for groups.
Output
0matches
0groups
0spans
Nofull string
Run the regex
Run the sample to see matches, groups, spans, and characters.