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Security & Network 14
- IPv4 Subnet Calculator, Network masks, wildcards, and host ranges.
- MAC Address Vendor Lookup, Identify manufacturers from MAC prefixes.
- Port Scanner Reference Guide, Interactive directory of common TCP/UDP ports.
- Bcrypt Hash Generator, Hash strings for password handling tests.
- JWT (JSON Web Token) Decoder, Split tokens into header, payload, and signature.
- UUID Checker & Version Validator, Confirm an identifier fits standard UUID syntax.
- Credit Card Number Mock Generator (Luhn), Valid test cards for sandbox checkouts.
- IBAN Bank Account Validator, Check IBAN syntax and checksums per country.
- ISBN Book Number Validator, Confirms ISBN-10 and ISBN-13 checksums.
- HMAC Generator, HMAC with secret and hash.
- VIN Decoder, Basic vehicle identification.
- Phone Number Formatter / Validator, Normalize numbers.
- Punycode / IDN Converter, International domain names.
- Unicode Character Inspector, Codepoint, name, block.