Regex Tester & Debugger
Test, validate, and debug regular expressions in real time with instant match highlights and capture groups inspection.
//gi
Flags:
Test String123 chars
Match Preview3 matches
Contact us at support@quikdevtools.com or sales@example.org for inquiries.
Another email is developer.team+test@company.io!
Match Details & Capture Groups
#1"support@quikdevtools.com"at index 14
Group 1: "support" Group 2: "quikdevtools.com"
#2"sales@example.org"at index 42
Group 1: "sales" Group 2: "example.org"
#3"developer.team+test@company.io"at index 92
Group 1: "developer.team+test" Group 2: "company.io"
What is a Regular Expression (RegEx)?
A Regular Expression (RegEx) is a specialized pattern-matching sequence used to search, validate, extract, or replace text across almost every programming language (JavaScript, Python, Go, Rust, Java, PHP, etc.).