Editor's Rating: ⭐⭐⭐⭐☆ (4.0/5)

Angry IP Scanner is a free, open source, and fully portable network IP scanner designed to quickly detect active devices, resolve hostnames, and scan for open ports across local or remote networks. Widely used by network administrators, IT technicians, and security professionals, this lightweight utility combines speed, simplicity, and portability into a powerful diagnostic tool.

Available for Windows, Linux, and macOS, Angry IP Scanner can run directly from a USB flash drive without installation, making it ideal for portable network troubleshooting and device discovery.

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Angry IP Scanner | Portable Open Source IP & Port Scanner

Angry IP Scanner portable network and port scanner — Angry IP Scanner scanning IP ranges for active hosts and open ports

This fast multi threaded scanner can analyze large IP ranges in seconds while displaying detailed information about discovered devices and services.

What Is Angry IP Scanner?

Angry IP Scanner is a portable network scanning utility used to identify active hosts and detect open ports on local networks or internet accessible systems. Similar to tools like Free IP Scanner, it helps users quickly discover devices connected to a network and gather useful diagnostic information.

The application works by scanning IP address ranges and checking which systems respond. Once active devices are detected, the software can retrieve:

Hostnames
MAC addresses
Open TCP or UDP ports
Network service information
Additional host details through plugins

Its lightweight footprint and portable design make it especially useful for technicians carrying network utilities on a USB flash drive.

How Angry IP Scanner Works

The software sends ICMP ping requests to IP addresses within a specified range to determine whether devices are online. When a responsive host is found, Angry IP Scanner can optionally perform additional scans to detect services and open ports.

Users can customize scan behavior by adjusting:

Scanning thread count
Connection timeout values
Port ranges
TCP or UDP scan methods
Plugins and data retrieval options

Because it uses multi threaded scanning, Angry IP Scanner is capable of scanning large networks extremely quickly while using minimal system resources.

Open Port Scanning Features

One of the most useful capabilities of Angry IP Scanner is its ability to identify open network ports and exposed services.

This helps users:

Detect running web servers
Find remote desktop services
Troubleshoot connectivity issues
Identify misconfigured devices
Locate shared services or unauthorized systems

The scanner can analyze both local networks and external IP ranges where access is permitted.

Main Features

Fast Multi Threaded Scanning: Quickly scan large IP ranges.
Open Port Detection: Scan TCP and UDP ports for active services.
Hostname Resolution: Resolve discovered device names automatically.
MAC Address Detection: Retrieve MAC addresses on local networks.
Plugin Support: Extend functionality with custom plugins.
Portable Utility: Run directly without installation.
Cross Platform Support: Available for Windows, Linux, and macOS.
Lightweight: Uses less than 1 MB of storage space.
Export Options: Save scan results in multiple formats.
Open Source: Released under the GNU GPL license.

Common Use Cases

Identifying devices connected to a network
Detecting unauthorized or unknown hosts
Troubleshooting network connectivity problems
Locating open ports and exposed services
Performing quick network audits
Running portable diagnostics from a USB drive

How to Use Angry IP Scanner

Download and launch Angry IP Scanner.
Enter the IP range you want to scan.
Select optional port scanning settings if needed.
Click Start to begin scanning.
Review detected hosts, open ports, and network details.
Export results for reporting or troubleshooting purposes.

Final Thoughts

Angry IP Scanner remains one of the most trusted and widely used portable network scanning tools available. Its combination of speed, portability, open source transparency, and cross platform support make it an excellent utility for network discovery, diagnostics, and open port scanning.

Whether you need to identify live hosts, troubleshoot devices, or inspect exposed network services, Angry IP Scanner delivers fast and reliable results while remaining lightweight enough to carry anywhere on a USB flash drive.

Reviewed by Pendrive Apps | 4 min read