IP Range Generator

An IP range generator helps you expand a CIDR block or a custom start and end address into a full list of IPv4 addresses. Instead of calculating hosts by hand, you can enter a range like 192.168.1.0/24 or two endpoints and immediately see every address included in that network.

Why this tool is useful

This is handy when you need to prepare firewall rules, inventory devices, audit an internal subnet, build allowlists, or generate a clean host list for testing and documentation. The subnet summary also saves time because it shows the network address, broadcast address, subnet mask, prefix length, and usable host counts in one place.

For larger blocks, the paginated output keeps the page responsive while still letting you inspect the list in chunks. If you only need the final result, you can download the range as a plain text file and use it in scripts, scanners, spreadsheets, or deployment notes.

What you can do here

• Generate addresses from CIDR notation
• Build a list from a custom start IP and end IP
• Exclude specific IPv4 addresses line by line
• Review subnet details before exporting the result
• Copy smaller IP lists or download larger ones as .txt

Typical use cases

Developers and network administrators often use an IP range generator to verify subnet planning, prepare monitoring targets, test access rules, or compare expected hosts with real devices on a segment. It is also useful in labs, staging environments, and training materials where you need a predictable list of addresses.

Everything runs entirely in your browser, so the IP data stays local while you generate, review, and export the range.