Network Tools

nodedata.io's network tools help developers, network administrators, and security teams look up, verify, and troubleshoot domains, IP addresses, and connections, all free, and all running directly in your browser. Whether you need a quick DNS lookup, a whois search to check domain ownership, or an IP lookup tool to trace a network issue, this page organizes every network tool we offer into one place.

7 tools

IP & Network Lookup

Look up DNS records, domain ownership, and IP address details.

DNS Lookup

Query A, MX, and other DNS records for any domain in seconds.

Whois Domain Search

Find a domain's owner, registrar, registration date, and expiry.

Reverse IP Lookup

See every domain hosted on a given IP address.

IP to Decimal Converter

Convert IPv4 or IPv6 addresses to their decimal integer value, and back.

IPv4 to IPv6 Converter

Convert an IPv4 address to its IPv4-mapped and 6to4 IPv6 forms.

IPv6 to IPv4 Converter

Extract the IPv4 address embedded in an IPv4-mapped or 6to4 IPv6 address.

MAC Address Lookup

Identify a device's vendor and OUI from its MAC address.

3 tools

Detection & Security

Download VPN data, test IPv6 support, and fix wrong IP locations.

VPN Database Download

Download a daily-updated dataset of VPN, proxy, and Tor IP addresses in CSV or MMDB format.

IPv6 Test

Check whether your connection supports IPv6.

Geolocation Correction

Report an inaccurate IP location and help improve our geolocation accuracy.

2 tools

Generators & Readers

Small standalone tools for everyday network tasks.

WiFi QR Code Generator

Turn a network name and password into a scannable WiFi QR code.

MMDB Reader

Open and query MMDB database files directly in your browser.