SoftNexi

Windows · Networking

Angry IP Scanner for Windows

Free, open-source, lightweight IP address and port scanner for quickly finding live devices on a local network.

Updated August 9, 2026 · Reviewed by SoftNexi Editorial Team, Software research and documentation

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Overview

Angry IP Scanner is a simple, fast tool for scanning a range of IP addresses and reporting which ones respond, along with basic details like hostname, MAC address, and any open ports you've configured it to check. It's built in Java, so it runs on Windows without much fuss, and the interface is a single scannable list rather than a dashboard of advanced features.

Its scope is intentionally narrow compared to Nmap: it's aimed at quickly answering 'what's connected to my network right now,' not deep service fingerprinting or vulnerability scanning. Plugins extend it modestly (exporting results, adding fetchers for extra data like NetBIOS names), but it doesn't attempt to replace a full security scanner.

It suits home users, small-office IT, and anyone who wants a fast visual list of devices on their LAN — for example, tracking down an unfamiliar device or confirming a new device picked up an IP address correctly. For anything beyond basic discovery, such as service version detection or OS fingerprinting, Nmap is the more capable tool.

As with any IP/port scanner, only scan networks you own or manage; scanning networks you don't have authorization for, even with a simple discovery tool, can violate acceptable-use policies and, on networks outside your control, computer-misuse laws.

Key features

  • Fast ping-based scanning of a specified IP address range
  • Reports hostname, MAC address (on local subnets), and response time per host
  • Optional port scanning of common ports on discovered hosts
  • Plugin system for exporting results and fetching extra host data
  • Export scan results to CSV, TXT, XML, or IP-port list formats
  • Portable option available with no installation required

System requirements

Operating system
Windows 11 and Windows 10 (64-bit and 32-bit builds available)
Runtime
Bundled Java runtime is included in the Windows installer, so a separate Java install isn't required

How to install Angry IP Scanner

  1. 1. Download the installer

    Go to angryip.org/download and choose the Windows installer or portable ZIP build.

  2. 2. Install or extract

    Run the installer for a standard setup, or extract the portable build if you'd rather not install anything.

  3. 3. Set an IP range

    Enter a starting and ending IP address (or your subnet, such as 192.168.1.1 to 192.168.1.254) in the range fields.

  4. 4. Run the scan

    Click Start to scan the range and watch results populate live in the results list.

How to use it

  1. 1. Scan your home network

    Enter your router's subnet range and run a scan to see every currently connected device and its IP address.

  2. 2. Add port checks

    Open Tools > Preferences > Ports to specify a list of ports to check on each responding host, useful for a quick 'is this service reachable' check.

  3. 3. Export results

    Use File > Export to save scan results as CSV or another format for record-keeping or sharing with a colleague.

  4. 4. Speed up large scans

    Adjust the number of threads in Preferences to scan larger ranges faster, keeping in mind that very high thread counts can flood a small network.

Safety and privacy

  • Download only from angryip.org; the project is open source and its code is publicly available.
  • The Windows installer bundles a Java runtime specifically for running the application, not a general-purpose Java install.
Bundled software
The official installer bundles only the Java runtime required to run the scanner; there is no unrelated third-party bundling reported.
Privacy
Angry IP Scanner runs locally and only sends the network traffic your scans generate; it does not collect or transmit usage telemetry.

Known risks

  • Only scan networks and IP ranges you own or are authorized to test — scanning networks you don't control without permission can violate acceptable-use policies or computer-misuse laws.
  • Scanning very large IP ranges can generate noticeable network traffic and, on monitored networks, may trigger security alerts.

What's new

    Pros and cons

    Pros

    • Extremely fast for simple host-discovery scans
    • Free, open source, and lightweight
    • Simple, no-frills interface that's easy to learn immediately
    • Portable option needs no installation
    • Useful export formats for documentation

    Cons

    • No service version detection or OS fingerprinting like Nmap offers
    • Java-based, which adds minor overhead versus a native tool
    • Limited plugin ecosystem compared to more established security tools
    • Not designed for anything beyond basic discovery and simple port checks

    Verdict

    Angry IP Scanner is a good, fast answer to 'what's on my network right now,' and its simplicity is a genuine feature for that specific job. Anyone needing deeper service or vulnerability analysis should step up to Nmap instead.

    Frequently asked questions

    Is Angry IP Scanner free?

    Yes, it's free and open source under the GNU GPLv2.

    Is Angry IP Scanner safe?

    The official build from angryip.org is open source and contains no unrelated bundled software; as always, avoid third-party download mirrors.

    Does it work on Windows 11?

    Yes, the Windows installer and portable build both support Windows 11 and Windows 10.

    How is it different from Nmap?

    Angry IP Scanner focuses on fast, simple host discovery with optional basic port checks. Nmap goes much deeper, with service/version detection, OS fingerprinting, and a scripting engine for advanced enumeration.