Regex Tester
Real-time regular expression matcher with capture group breakdown and syntax flag toggles.
Regex Tester
developerNO SIGN-UPReal-time regular expression matcher with capture group breakdown and syntax flag toggles.
Test String
Extracted Matches & Capture Groups (2)
contact@llmscope.linkIndex: [13, 34]security@example.orgIndex: [60, 80]Zero-Latency Evaluation: RegEx parsing runs directly in the client V8 engine. Built-in loop guards protect against catastrophic backtracking (ReDoS) freezing your session.
Type or paste your regex pattern in the pattern bar.
Set desired flags such as "g" (global) or "i" (case-insensitive).
Type test text and view matching elements highlighted below.
What regex flavor does this tester use?
This tool uses the standard ECMAScript / JavaScript RegExp engine built directly into your web browser.
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