Network & Security Tools
Choose a utility below to start analyzing networks, securing your data, or verifying IP reputations.
IPv4 Subnet Calculator
Calculate CIDR ranges, netmasks, broadcast addresses, and usable host limits instantly.
Open Port Scanner
Scan remote IP addresses for open TCP ports to audit server firewalls and exposures.
Server Ping Test
Send ICMP packets to any host or domain to measure latency and test connectivity.
IP Blacklist Check
Query your IP against the Spamhaus DNSBL to verify email and network reputation.
Password Generator
Generate cryptographically secure passwords locally in your browser without tracking.
SHA-256 Hash Generator
Instantly convert any text string into a secure SHA-256 cryptographic hash.