Regex Tester Tool
Description
Test and debug regular expressions with match highlighting, capture group extraction, and a library of common patterns.
Trigger
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/regex command
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User needs to test regex
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User wants pattern matching help
Usage
Test pattern
python scripts/regex_tester.py "\d+" "abc123def456"
Show capture groups
python scripts/regex_tester.py "(\w+)@(\w+)" "user@domain" --groups
Find all matches
python scripts/regex_tester.py "\b\w{4}\b" "The quick brown fox" --all
Use common pattern
python scripts/regex_tester.py --pattern email "Contact: test@example.com"
Tags
regex , pattern , match , test , text
Compatibility
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Codex: ✅
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Claude Code: ✅