Free Online Tools
Built for sysadmins, developers and IT professionals who need fast and reliable diagnostics.
Password Generator
Generate secure, complex passwords.
DNS Checker
Check any DNS records in real time.
IP Reputation
Analyze the reputation of any IP address.
Subnet Calculator
Calculate and validate subnets instantly.
What's my IP
Discover your public IP (IPv4 / IPv6), location, and ISP.
Port Checker
Check open ports on any host instantly.
WhoIs Lookup
Retrieve registration data for domains and IP addresses.
IP Lookup
Retrieve registration data for domains and IP addresses.
MX Lookup
Query a domain’s MX records instantly.