Stéphane JAILLIARD (Steph 6128)
Updated Jan 18, 2026 · v1.0
Easy IP and CIDR calculator
SJ IPv4 Calculator is the essential tool for network administrators and IT professionals who want to simplify the management of IP addresses and subnets. With an intuitive interface, the application allows you to quickly calculate IP address ranges from a subnet mask, easily convert between CIDR and subnet mask, and instantly obtain the broadcast address of the network. It also makes subnet planning and deployment more efficient and reliable. Whether you are in a data center, at a client site, or in the office, you will always have your IP tools at hand. SJ IPv4 Calculator helps you save time, avoid configuration errors, and maintain a clear view of your infrastructure. Free, fast, and easy to use, it is the perfect assistant for network administrators, system engineers, and IT professionals. Download SJ IPv4 Calculator now and simplify your IP and CIDR calculations today.
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