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Regex Tester
Test and debug regular expressions with real-time matching resultsEnter your regular expression and test text to see real-time matching results. Use flags to modify matching behavior and view detailed match information.
Regex Pattern:
Regex Flags:
Global (g)
Ignore Case (i)
Multiline (m)
Dot All (s)
Unicode (u)
Sticky (y)
Test Text:
📖 Usage Guide
Enter Pattern
Enter your regular expression pattern
Configure Flags
Select appropriate flags for your regex
Test & Analyze
Test against text and analyze match results
✨ Features
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Real-time Regex TestingProfessional tool with advanced functionality
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Multiple Flag SupportReal-time processing with instant results
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Detailed Match InformationOne-click copy functionality for easy sharing
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Interactive Pattern ValidationLocal processing ensuring complete privacy
🔬Technical Introduction
What is Regex Tester?A regex tester is a tool that allows you to test and debug regular expressions in real-time. It provides immediate feedback on pattern matching, capture groups, and validation results.
Regex FlagsRegex flags modify the behavior of pattern matching. Common flags include global (g), case-insensitive (i), multiline (m), and more.
Capture GroupsCapture groups allow you to extract specific parts of matched text. They are defined using parentheses and can be referenced in replacements or further processing.