networking-toolbox
Networking-toolbox is an all-in-one offline first networking tool and utility. The Swiss Army Knife for Internet practitioners.
Another masterpiece created by web-check author Lissy93, Networking Toolbox is an open source toolset containing 100+ web tools. Its main features include: 1. Subnet calculation tool IPv4/IPv6 subnet calculator VLSM and Supernetwork Computing Subnetting and planning 2. CIDR tool CIDR aggregation, decomposition and comparison CIDR allocator and alignment check Wildcard mask conversion Set operations (difference set, intersection, inclusion relationship) 3. IP address tool IP format conversion (decimal, binary, hexadecimal, octal) IP distance calculator and Nth IP calculator Random IP Generator IP address verifier IP enumeration and regular expression generator 4. DNS tools PTR record generator Reverse DNS Zone Generator DNS zone file analysis and verification DNS query performance comparison 5. network diagnostic tool DNS query and performance testing HTTP/TLS check Port checking and connection testing WHOIS and RDAP queries 6. resources ASN(Autonomous System Number) Description Common TCP/UDP Port References ACL wildcard masking guide MTU/MSS Value Reference
