Complete IP & Network Tools

Professional-grade IP address tools for network engineers, developers, and IT professionals. Calculate subnets, trace routes, lookup locations, scan ports — all free, no registration.

25+ Free Tools IPv4 & IPv6 Instant Results

Quick Access

Most popular tools

IPv4

Calculator
IP

Location
Port

Scanner

All Network Tools

Select a tool to get started

IPv4
🔢

IPv4 Subnet Calculator

Calculate network address, broadcast, host range, wildcard mask from CIDR.

Open Calculator IPv4
🎭

Wildcard Mask Calculator

Convert subnet masks to wildcard masks for ACL configuration.

Calculate Wildcard IPv4
📊

IP Range to CIDR

Convert IP address ranges to minimal CIDR notation blocks.

Convert Range IPv4
🔀

Multiple Subnets

Plan VLSM subnetting by specifying host counts.

Plan Subnets IPv4
⚖️

Compare Subnets

Check overlap and containment between two subnets.

Compare IPv6
🌐

IPv6 Calculator

Expand, compress, and calculate IPv6 prefixes.

Calculate IPv6 IPv6
📐

IPv6 Range to CIDR

Convert IPv6 ranges into minimal CIDR notation.

Convert IPv6
🔍

IPv6 Compare

Compare two IPv6 prefixes for overlap.

Compare IPv6
🔄

IPv4 ↔ IPv6

Convert between IPv4 and IPv6 formats.

Convert Network
📍

IP Location Lookup

Find geographic location, ISP for any IP.

Lookup Network
🏢

ASN Lookup

Discover network owner and routing policies.

Lookup ASN Network
📶

Ping Test

Test connectivity and measure latency.

Run Ping Network
🗺️

Traceroute

Map hop-by-hop network path.

Trace Route Network
🔌

Port Scanner

Scan for open services and ports.

Scan Ports Network
🛡️

VPN/Proxy Checker

Detect VPN, proxy, or Tor exit nodes.

Check Network
⚠️

IP Reputation

Score IP risk across threat sources.

Check Tools
🔗

URL to IP

Resolve domains to IP addresses.

Resolve Tools
❓

What is My IP

Discover your public IP address.

Check Tools
📋

WHOIS Lookup

Query IP/domain registration data.

Lookup Tools
🚫

Blacklist Checker

Check IP against spam blacklists.

Check Tools
💻

MAC OUI Lookup

Identify vendor from MAC address.

Lookup Tools
🔀

BGP Prefix Lookup

Review announced prefixes and peers.

Lookup Tools
🔗

CIDR Merge

Condense blocks into supernets.

Merge Tools
⚔️

CIDR Overlap

Detect conflicting address blocks.

Check Tools
📝

CIDR to IP List

Expand CIDR to IP addresses.

Expand

Frequently Asked Questions

These tools combine local calculations and public APIs to provide fast, practical IP and network analysis.

Why do results vary?

Routing changes, cache differences, and API rate limits can alter timing and metadata.

How accurate are these tools?

Great for triage and learning. For critical decisions, verify with authoritative sources.

Is my data stored?

No. All calculations are local or via temporary API calls. We don't log queries.

Can I use commercially?

Yes! These tools are free for personal and commercial use.