// Penetration Test Finding
Regex ReDoS Checker
Catastrophic backtracking analysis — nested quantifiers, alternation overlap, optional repetition.
Static analysis · evil-input synthesis · runtime benchmark · browser-only
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Subject
Pattern under analysis
/
Flags:
i
g
m
s
u
Analyze
Nested quantifier
Alt overlap
Optional rep
Email validator
Safe pattern
Clear
02
Test Input (optional)
Run pattern against custom input with timeout protection
03
Findings
Vulnerability assessment · severity per detector
Provide a regex and click Analyze.