Why Use This Tool
Understanding IP addresses is essential for network administration, security analysis, and debugging connectivity. These tools reveal where IPs are located and what networks they belong to.
IP Address Tools
Free online IP address tools. Calculate subnets, convert CIDR notation, and analyze IPv4 and IPv6 addresses directly in your browser. — runs 100% in your browser, client-side only. No data is sent to any server. Free to use, no account required.
Free
Client-Side
No Login
No Storage
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How to Use the IP Address Tools
- Enter an IPv4 address with optional CIDR notation (e.g.
192.168.1.0/24). - Click Calculate for full subnet details.
Shows network/broadcast addresses, host range, total hosts, IP class, private range detection, and binary representation.
What is IP Address Tools?
IP address tools provide information about IP addresses: geolocation, ISP, hostname, subnet calculations, IPv4/IPv6 conversion, and network range analysis.
When to Use It
Use IP tools when investigating suspicious traffic, debugging network connectivity, calculating subnet ranges, or understanding network architecture.
Common Uses
- Looking up IP geolocation
- Calculating subnet ranges
- Converting between IPv4 and IPv6
Frequently Asked Questions
How accurate is IP geolocation?
Usually accurate to city level for most IPs. VPNs, proxies, and mobile networks can give misleading locations. It's not precise enough for exact addresses.
What's the difference between IPv4 and IPv6?
IPv4 uses 32-bit addresses (4 billion possible). IPv6 uses 128-bit addresses (340 undecillion). IPv6 was created because IPv4 addresses ran out.
What is CIDR notation?
CIDR (like /24) indicates network size. /24 means 24 bits for network, 8 for hosts = 256 addresses. Lower numbers = larger networks.