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 serves as a network visualization tool, offering an illustrative overview of the complete network setup. It automatically identifies and charts network devices, illustrating the relationships and interdependencies among routers, switches, servers, and various other elements. This graphical representation aids IT personnel in comprehending network structure, pinpointing performance bottlenecks, and efficiently resolving problems. Featuring a user-friendly interface and real-time information refreshes, OpManager significantly improves the management of networks, facilitating easier monitoring and enhancement of overall network efficacy.

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.

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.

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.

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

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.

The Nmap initiative aims to challenge the perception that open-source software often lacks thorough documentation by offering an extensive array of guidance on how to install and utilize Nmap effectively. This webpage serves as a gateway to the official documentation from Insecure.Org, alongside valuable contributions from various sources. The book titled Nmap Network Scanning acts as the definitive resource for the Nmap Security Scanner, which is a free and open-source tool embraced by millions for purposes such as network discovery, management, and security assessments. It caters to a wide audience, from beginners learning the fundamentals of port scanning to seasoned hackers exploring advanced packet crafting techniques. With a 42-page reference section that meticulously outlines every feature and option available in Nmap, the remainder of the book illustrates how to leverage these tools to efficiently tackle practical challenges. Furthermore, it includes examples and diagrams that depict the actual data sent over the network, enhancing the reader's understanding of real-world applications. This comprehensive approach ensures that both novice users and expert professionals can find value in the material provided.

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.

Splice.me serves as an efficient fiber optic network management platform. This swift and streamlined SaaS solution enables users to design and oversee fiber optic networks effortlessly, allowing for the creation and maintenance of fiber splice diagrams in just a few clicks, effectively saving substantial time and effort. With Splice.me, users can easily draft and manage an unlimited number of fiber splice sheets, accommodating everything from a few nodes to extensive regional fiber infrastructures. One of its primary benefits lies in its departure from traditional GIS-based network design software, meaning that users aren't required to recreate the entire network map with all its components. This innovative approach has garnered trust from internet service providers across both America and Europe, highlighting its reliability and efficiency in the industry. Ultimately, Splice.me empowers users to focus more on their projects rather than getting bogged down by cumbersome software processes.

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.

Quickly identify all of your assets and map your networks using rapid, secure scans that do not require credentials and operate from a single lightweight agent, eliminating the necessity for server installations. Reveal instances of policy violations, visualize IP allocations, pinpoint compliance issues, emphasize misconfigurations, and uncover security vulnerabilities. Utilize recurring scans to monitor asset alterations, detect newly added assets, and alert you to offline assets, all supported by integrated notifications. You can easily import, export, script, schedule, integrate, merge, and synchronize your asset inventory with current systems. Rumble operates swiftly and uncovers assets without requiring special access or credentials. With just one agent, an entire enterprise can be assessed, or multiple agents can be deployed to minimize cross-site traffic. Discovering networks of any size can be accomplished in a fraction of the time compared to traditional tools, making it a more efficient choice for asset management. Furthermore, this streamlined process allows for greater flexibility and responsiveness in addressing network security needs.

Cisco ThousandEyes is an innovative platform for network intelligence that equips organizations with profound insights into digital interactions across various environments, including the internet, cloud, and enterprise networks. Utilizing sophisticated monitoring and analytics capabilities, ThousandEyes enables businesses to identify, troubleshoot, and rectify performance challenges that affect essential applications, websites, and services. Its extensive array of tools delivers valuable information regarding network performance, application delivery, and user engagement, allowing organizations to maintain uninterrupted connectivity and enhance user experiences. This platform is widely embraced by Fortune 500 companies and SaaS providers alike, establishing itself as a reliable solution for navigating the intricacies of contemporary hybrid and multi-cloud landscapes. Additionally, ThousandEyes empowers IT teams by equipping them with the tools needed to proactively manage, optimize, and refine their digital infrastructures for improved operational efficiency.