Professional network tools. Free. Open source.
Free open-source networking, DNS, SSL, security, and developer utilities by Nexabit IT Solutions.
Categories
Networking
IP, subnet, port, ping, traceroute, and WHOIS utilities
DNS
DNS record lookup, propagation, and email authentication checks
SSL / TLS
Certificate inspection, CSR generation, and PEM decoding
Security
Passwords, hashing, encoding, JWT, and UUID tools
Developer
JSON, YAML, regex, curl, and webhook utilities
Linux & DevOps
chmod, cron, Docker Compose, and Kubernetes validators
Popular Tools
View all 35 tools →IP Lookup
Look up geolocation and network information for any IPv4 or IPv6 address.
CIDR / Subnet Calculator
Calculate subnet masks, network ranges, broadcast addresses, and host counts.
IPv4 Validator
Validate IPv4 addresses and check if they are public, private, or reserved.
IPv6 Validator
Validate IPv6 addresses and expand compressed notation.
Port Checker
Check if a TCP port is open on a remote host.
Ping
Send ICMP echo requests to test host reachability and latency.
Traceroute
Trace the network path to a destination host.
WHOIS Lookup
Query WHOIS records for domains and IP address blocks.
Built by Nexabit IT Solutions
Nexabit IT Solutions provides enterprise networking, cloud, and cybersecurity services. This platform is our contribution to the open-source community.
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