Best Free Network Mapping Software of 2025

FirstWave’s NMIS is a network management system that provides fault, performance, configuration management, performance graphs, and threshold alerts. Business rules allow for highly specific notification policies that can be used with multiple notification methods. FirstWave also enables partners, including some of the world’s largest telcos and managed service providers (MSPs), to protect their customers from cyber-attacks, while rapidly growing cybersecurity services revenues at scale. FirstWave provides a comprehensive end-to-end solution for network discovery, management, and cybersecurity for its partners globally.

ManageEngine OpManager as a network mapping software offers a visual representation of the complete network infrastructure. It automatically discovers and maps network devices, illustrating the connections and dependencies among routers, switches, servers, and other components. This visualization enables IT teams to grasp network topology, pinpoint bottlenecks, and troubleshoot issues efficiently. With its user-friendly interface and real-time updates, OpManager improves network management, making it simpler to monitor and optimize network performance.

Site24x7 provides unified cloud monitoring to support IT operations and DevOps within small and large organizations. The solution monitors real users' experiences on websites and apps from both desktop and mobile devices. DevOps teams can monitor and troubleshoot applications and servers, as well as network infrastructure, including private clouds and public clouds, with in-depth monitoring capabilities. Monitoring the end-user experience is done from more 100 locations around the globe and via various wireless carriers.

JDisc Discovery is a powerful IT asset management and network discovery tool, designed to provide organizations with clear, real-time insights into their entire IT environment. By automatically scanning the network, it identifies and catalogs devices, from physical servers and workstations to virtual machines and network appliances, giving users a detailed inventory of their assets. The tool captures essential data such as hardware specifications, installed software, system configurations, and interdependencies among devices. A key advantage of JDisc Discovery is its agentless architecture. Rather than requiring installation on each device, it uses multiple protocols (like SNMP, SSH, WMI) to gather information, ensuring quick deployment and compatibility across various operating systems, including Windows, Linux, and Unix. This makes it ideal for diverse and dynamic IT ecosystems, enabling efficient and non-intrusive data collection.

VIRIMA is a SaaS platform that provides highly automated IT Asset Management, IT Service Management (ITSM), and IT Operations Management solutions (ITOM). It is easy to use and affordable to deploy. VIRIMA enables business processes to be linked to the technology and services they rely on through advanced infrastructure discovery and visualization capabilities. VIRIMA CMDB's innovative automation capabilities provide insight, control, and value to IT companies large and small. This allows them to efficiently address the challenges of managing and securing today’s dynamic, dispersed, and complex IT estate.

Nmap is an open-source software project that aims to dispel the stereotype of poorly documented open-source software. It provides a comprehensive set documentation for installing and using Nmap. This page links to Insecure.Org documentation as well as generous contributions by other parties. Nmap Network Scanning, the official guide to Nmap Security Scanner is a free and open source utility that millions of people use for network discovery, administration and security auditing. This book is suitable for all levels of security and networking professionals, from beginners to advanced hackers to explaining basic port scanning techniques. The 42-page reference guide explains each Nmap option and feature, while the rest of this book shows how to use those features to solve real-world problems. Diagrams and examples show real communication over the wire.

Sematext Cloud provides all-in-one observability solutions for modern software-based businesses. It provides key insights into both front-end and back-end performance. Sematext includes infrastructure, synthetic monitoring, transaction tracking, log management, and real user & synthetic monitoring. Sematext provides full-stack visibility for businesses by quickly and easily exposing key performance issues through a single Cloud solution or On-Premise.

With more than 50,000 customer installations across the five continents, Pandora FMS is a truly all-in-one monitoring solution, covering all traditional silos for specific monitoring: servers, networks, applications, logs, synthetic/transactional, remote control, inventory, etc. Pandora FMS allows you to quickly find and solve problems. It scales them so that they can be derived either from on-premise, multi-cloud, or both. You now have the ability to use your entire IT stack and analytics to solve any problem, even those that are difficult to find. You can control and manage any technology and application with more than 500 plugins, including SAP, Oracle, Lotus or Citrix, Jboss, VMware, AWS and SQL Server.

Checkmk is an IT monitoring system that allows system administrators, IT managers and DevOps teams, to quickly identify and resolve issues across their entire IT infrastructure (servers and applications, networks, storage and databases, containers, etc. Checkmk is used daily by more than 2,000 commercial customers worldwide and many other open-source users. Key product features * Service state monitoring with nearly 2,000 checks 'outside the box' * Event-based and log-based monitoring * Metrics, dynamic Graphing, and Long-Term Storage * Comprehensive reporting incl. Accessibility and SLAs * Flexible notifications and automated alert handling * Monitoring business processes and complex systems * Software and hardware inventory * Graphical, rule-based configuration and automated service discovery These are the top use cases * Server Monitoring * Network Monitoring * Application Monitoring * Database Monitoring * Storage Monitoring * Cloud Monitoring * Container Monitoring

CySight’s revolutionary Actionable Intelligence, trusted by Fortune 500 globally, enables organizations with the most cost-effective and secure way to tackle the increasing density, complexity, and expanse of modern physical and cloud networking. Deploying cyber network intelligence, CySight empowers network and security teams to substantially accelerate incident response by eliminating blindspots, analyzing network telemetry to discover anomalies, uncover cyber-threats, and quantifying asset usage and performance. CySight’s Dropless Collection method enables unsurpassed visibility of network Big-Data which is retained in the smallest footprint, accelerating machine learning, artificial intelligence and automation to fully utilize all metadata no matter the amount, size, or type.

Codima Toolbox provides an all-in-one solution that allows an organization to discover and manage all network assets, automatically create documentation in both Web or Visio Network Maps and monitor network devices, all without the need for agents. Toolbox allows users to make informed decisions using reliable data. After a Network Discovery, all other features within Toolbox are fully set up and ready for use. Make device network management and documentation simple.

Splice.me manages fiber optic networks. It is a lightweight SaaS that allows for the design and management of fiber optic networks. Users can create and manage fiber splice charts in a matter of clicks, saving months of work. Splice.me can help you draft and manage as many fiber splice sheets as you need, regardless of whether it's a few nodes or a regional fiber infrastructure. Its main advantage is that it does not adhere to the GIS-based network software philosophy. Users do not need to draw a complete network map again with all assets. ISPs from America and Europe trust this software.

Cisco ThousandEyes, a cutting edge network intelligence platform, is designed to give organizations a deep understanding of digital experiences across the Internet, cloud and enterprise networks. ThousandEyes uses advanced monitoring and analytics to help businesses identify, troubleshoot and resolve performance issues affecting critical applications, websites and services. Its comprehensive set of tools provides insights into network performance and application delivery. This allows organizations to ensure seamless connections and optimal user experience. ThousandEyes, widely adopted by Fortune 500 companies, SaaS providers and other IT professionals, is a trusted tool for navigating the complexity of hybrid and multi-cloud environments. It empowers IT teams to manage and optimize digital ecosystems.

You can quickly identify all your assets and map your networks using a single light agent. No server installation is required. You can uncover policy violations, visualize IP allocations and highlight compliance issues. With built-in alerting, recurring scans can be used to track asset changes, identify assets, and flag offline assets. Import, export and schedule your asset inventory. Rumble is fast and can identify assets without the need to have credentials or access. One agent can assess an entire company, but multiple agents can be used for cross-site traffic. Large or small networks can be discovered in a fraction the time it takes to use legacy tools.