URL parser and query editor
Inspect URL components and edit query parameters without losing repeated names, their order or the URL fragment.
IPv4 subnet calculator
Calculate the network, broadcast, usable address range and host count from an IPv4 address with a CIDR prefix or subnet mask.
About this tool
Calculate the network, broadcast, usable address range and host count from an IPv4 address with a CIDR prefix or subnet mask.
How to use
Enter an address such as 192.168.1.100/24, or provide the address and a contiguous subnet mask separately. A prefix included in the address takes precedence. Results include the network, wildcard mask, broadcast and usable range.
Prefixes /0–/32 are supported. A /31 uses point-to-point semantics with two addresses; /32 represents one host. Neither lists a broadcast address. This does not look up geolocation or live network settings, and does not support IPv6.
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