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Network Tools

Free Online Network Tools

Networking utilities for developers and sysadmins — IP, DNS, subnet, URL analysis, user agent parsing, and MAC address lookups.

My IP Lookup

Check your public IP address and location.

DNS Lookup

Query DNS records for any domain.

User Agent Parser

Identify browser, OS, and device from UA.

URL Parser

Break down and analyse URL components.

Query Builder

Construct and visualise URL query strings.

Subnet Calculator

Calculate CIDR ranges and network masks.

MAC Lookup

Identify device manufacturer from MAC address.

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About Zadein Network Tools

Zadein's network tools provide quick access to DNS lookup, subnet calculation, IP address detection, MAC address lookup, and user agent parsing. They are designed for network administrators, developers, and anyone troubleshooting connectivity issues.

How to use

  1. 1Select the network tool that matches your task.
  2. 2Enter a domain, IP address, or other identifier.
  3. 3Review the results returned by the tool.

Common use cases

  • Look up DNS records for a domain to verify configuration.
  • Calculate subnet ranges and host counts for network planning.
  • Identify your public IP address for firewall or VPN configuration.
  • Look up the manufacturer of a device from its MAC address.

Frequently asked questions

Do network tools require any special permissions?

No. Network tools use standard browser capabilities and public APIs. No special permissions are required.

Can I look up private network addresses?

Tools that query public DNS or IP databases only work with public addresses. Private network addresses cannot be looked up externally.