Regex Tester

Online Regex Tester – Test, debug, and validate regular expressions online with live preview. Supports flags, groups, replace, and error detection for developers. Highlight matches with different colors, copy results instantly, and save your regex patterns.

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⚠️ Complex Regex Pattern

This regex pattern may cause performance issues. Consider simplifying it.

Performance: 0ms
1

Total Matches

0

Match Groups

0

Lines Matched

0

Highlighted Results

No matches found

Match Details

No matches found

Matches per Line

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Download matches as a text file

Export as JSON

Download regex and matches as JSON

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Download as JavaScript code snippet

Import from JSON

Import regex from a JSON file

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