Free IP Address Tools Online
Convert IP addresses, calculate CIDR range, and check subnet information.
Key Features
⚡ Fast Processing
Instant IP conversion, CIDR calculation, and subnet analysis.
🔒 Privacy Protected
All processing runs locally in your browser. No data sent to servers.
How to Use IP Address Tools
Select a Tool
Choose IP Convert, CIDR, or Subnet tab.
Enter IP or CIDR
Provide an IP address, CIDR notation, or leave blank for defaults.
View Results
See converted formats, CIDR ranges, network info, and subnet details.
Frequently Asked Questions
Basics
What is CIDR notation?
CIDR (Classless Inter-Domain Routing) notation combines an IP address with a prefix length, e.g., 192.168.1.0/24.
What is a subnet mask?
A subnet mask divides an IP address into network and host portions, determining the size of the network.
Features
What IP formats are supported?
IPv4 addresses can be converted to binary, octal, decimal (long integer), and hex formats.
What does CIDR calculation show?
CIDR calculation shows the network address, broadcast address, first/last usable host, total hosts, and subnet mask.