Tools
Look up IP details, calculate subnets, and check your connection using the tools below.
IP and Connection Tools
What Is My IP Address?
Check your public IP address automatically and see the external IPv4 or IPv6 address your current connection uses when you visit this website.
IPv6 Test
Test your internet connection to check whether you are currently using IPv6 and see your connection status, along with your public IPv6 address.
IP Address Validator
Validate an IPv4 or IPv6 address to check its format and see whether it is public, private, loopback, or part of another special address range.
IPv6 Compressor and Expander
Enter an IPv6 address to get its compressed and fully expanded forms, and compare both representations of the same address in a single result.
IPv4 to IPv6 Converter
Convert an IPv4 address to IPv6 notation, including NAT64 and 6to4 forms, or extract an embedded IPv4 address from a supported IPv6 address.
IP WHOIS Lookup
Find out who owns a public IPv4 or IPv6 address and view the registered organization, network range, and available contact details from RDAP records.
ASN Lookup
Find the ASN associated with an IP address or domain, or look up an AS number to see the registered organization and network registration details.
IP Geolocation Map
Look up a public IPv4 or IPv6 address to see its approximate location on an interactive map, along with the available city and country information.
IP to Time Zone
Look up the time zone for a public IPv4 or IPv6 address and check the current local time, UTC offset, and whether daylight saving time is in effect.
IP to Currency
Look up the local currency for a public IPv4 or IPv6 address and see the currency name, code, and symbol for the country linked to that IP address.
Network Tools
IP Subnet Calculator
Calculate an IPv4 subnet from an IP address and CIDR prefix or subnet mask to find its network address, broadcast address, and usable host range.
IP Prefix Calculator
Calculate IPv6 address ranges and address counts from a prefix, or split an IPv6 network into smaller subnets with the prefix length you choose.
Port Number Lookup
Search by port number or service name to find matching IANA records, including TCP and UDP assignments, service descriptions, and port ranges.
Open Port Checker
Check whether a TCP port is open on a public IP address or domain and see whether the target accepts the connection, refuses it, or does not respond.
Domain IP Lookup
Find a website's IPv4 and IPv6 addresses from its domain name, subdomain, or URL with a free IP lookup based on the site's A and AAAA DNS records.
Reverse DNS Lookup
Look up PTR records for an IP address or domain name and check whether the returned hostnames resolve back to the same IPv4 or IPv6 address.
DNS Lookup
Look up a domain's DNS records and check its IP addresses, mail servers, nameservers, and TXT records, with TTL values shown for each record.
Browser and Privacy Tools
Browser and Device Information
Check your browser name and version, operating system, device type, and screen size, along with the language and time zone reported by your browser.
Password Generator
Generate strong passwords in your browser with a custom length and your choice of uppercase letters, lowercase letters, numbers, and symbols.
Password Strength Checker
Check your password strength in your browser and see its rating, estimated cracking times, and suggestions for making your password harder to guess.
WebRTC Leak Test
Test your browser for WebRTC leaks by comparing the public IP addresses it reveals with the IP address used by your current internet connection.