Lookup
Conversion
Scanning
🌐 IP, DNS & network utilities
Free Network Tools
Network diagnostic and lookup tools. All in your browser, no data leaves your machine.
🌐
All Network Tools
IP Address Lookup
Look up details about any IP address.
Subnet Calculator
Calculate subnet masks, ranges, and CIDR notation.
MAC Address Generator
Generate random valid MAC addresses.
Network Speed Converter
Convert between Mbps, Gbps, MB/s, and more.
IPv4 to IPv6 Converter
Convert IPv4 addresses to IPv6 mapped format.
Whois Lookup
Look up domain registration and ownership details.
DNS Lookup
Look up DNS records for any domain.
Port Scanner
Check common ports on any host.