Angry IP Scanner

Angry IP is a free and cross-platform project for both network admins and tech-savvy users interested in network maintenance or inventory, or performing security checks, as well as for increasing levels of protection (like DNS protection of routing attacks, for example).

Angry IP is a free instrument, which, like most open-source projects, is backed by a community with a given purpose and structure in mind.

The application's website provides users with exhaustive materials for understanding the need for network scanning, how that is conducted, what limitations there are (legally), and Angry IP's structural format and architecture structure. For a quick read, check this presentation.

What this tool does is scan the network and ping IP addresses to find out their status and their origin.

Along with the IP address, the tool returns other useful information, such as TTL (time to live), hostname, ports, ping time, etc. You can conduct searches according to your preferences and even specify certain ranges.

Moreover, you can export results or open results in other applications, manage a list of favorites, choose the pinging methods and a number of probes, search for unassigned IPs also, export results in different formats (e.g., CSV, TXT, XML).

Many applications offer extended functionality and features that allow flexibility to users. However, there is a great need for tools like Angry IP because this application allows users to extend its basic functionality.

As such, you can expand the functionality and applicability of this network scanner by creating and executing your own, custom-made plugins.

The vast majority of this application has been written in Java. For that reason, when writing new functionality on top of the basics, you need to use Java code. Some possible plugins you could add and use are feeders, fetchers, exporters, etc.

Moreover, after finalizing the IP scanning process, the app also returns a given status with additional information about that specific instance (like the hostname, MAC address of that device, and ports). You can enhance the results' informativeness with plugins, to get more information about the given remote devices.