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Regex Tester
Test regular expressions with live matching. Includes security presets for bug bounty patterns.
Pattern
Flags
g i m s u
Test string
Contact us at security@example.com or admin@test.org for support. Also try api@internal.dev.
Test
— Load preset —
Email addresses
URLs
IP addresses
API keys / tokens
JWT tokens
AWS access keys
Private keys (PEM)
MD5 hashes
SHA-256 hashes
Base64 encoded data
Output
Enter a pattern and click Test