Best Free Network Configuration Software

Unimus is an on-premise Network Automation and Configuration Management (NCM) solution designed for fast deployment and ease of use. It streamlines network configuration, ensuring consistency and reducing manual effort. Admins can instantly apply changes—like VLAN deployments or firmware upgrades—across hundreds of devices, no scripting needed. The Config Search tool enables instant, network-wide searches across active and historical configs. The built-in Device CLI offers a secure, centralized way to access and manage devices from a single interface. Unimus also simplifies compliance by checking device configurations against policies to ensure adherence to internal standards. Supporting 400+ device types from 150+ vendors, Unimus is a vendor-agnostic solution for Network Automation, Change Management, and Config Auditing. It eliminates manual errors, boosts security, and accelerates operations — all without programming expertise.

ManageEngine Site24x7 is a comprehensive observability and monitoring solution designed to help organizations effectively manage their IT environments. It offers monitoring for back-end IT infrastructure deployed on-premises, in the cloud, in containers, and on virtual machines. It ensures a superior digital experience for end users by tracking application performance and providing synthetic and real user insights. It also analyzes network performance, traffic flow, and configuration changes, troubleshoots application and server performance issues through log analysis, offers custom plugins for the entire tech stack, and evaluates real user usage. Whether you're an MSP or a business aiming to elevate performance, Site24x7 provides enhanced visibility, optimization of hybrid workloads, and proactive monitoring to preemptively identify workflow issues using AI-powered insights. Monitoring the end-user experience is done from more than 130 locations worldwide.

FirstWave’s NMIS is a complete network management system that provides fault, performance, and configuration management, performance graphs, and threshold alerts. Business rules allow for highly granular notification policies with many types of notification methods. NMIS consolidates multiple tools into one system, ready for Network Engineers to use. Scalable, flexible, open, and simple to implement and maintain, NMIS is the Network Management System that underpins the operations of over one hundred thousand organizations worldwide – making it one of the most widely used open-source Network Management Systems in the world today. FirstWave 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.

Network Configuration Manager is a multi-vendor network change, configuration and compliance management (NCCM) solution for switches, routers, firewalls and other network devices. NCM helps automate and take total control of the entire life cycle of device configuration management. Schedule device configuration backups, track user activity and spot changes by comparing configuration versions all from a centralized web GUI. Monitor configuration changes, get instant notifications and prevent unauthorized changes to make your networking environment secure, stable and compliant. Define standard practices and policies, check device configurations for violations and readily apply remedial measures to ensure device compliance. Save time by automating repetitive, time-consuming configuration management tasks and also by centrally applying configuration changes to devices in bulk.

​Open-AudIT is a powerful network discovery and inventory software that intelligently scans an organization’s network and stores the configurations of the discovered devices. This provides immediate access to software licensing, configuration changes, non-authorized devices, capacity utilization, and hardware warranty status reports. Open-AudIT can collect significant amounts of data from large and varying networks that are cataloged and can easily be configured into meaningful reports. It enables users to easily create network discovery profiles for their organization and then run a discovery with a single click or even on an automated schedule. It audits the organization’s network daily without impacting the user experience and intelligently stores the configuration of every discovered component. Open-AudIT tracks and reports on IT asset configuration changes, software licensing, shadow IT, and hardware warranty status.

cBackup provides network equipment configuration data backup for multiple platforms and devices. We constantly add support for new devices and distribute it via our content delivery system. It is crucial not only to back up the configuration, but also to have version control to be able track changes. cBackup uses Git functionality to support diff and history for plain-text configurations. We create highly configurable environment, you can set up discovery and backup policies as well as customize hardware support. Don’t hesitate to share your customizations. Out of box English and Russian languages are supported. We are on Transifex and everyone is welcome to share their translations on more languages for more convenient tool. cBackup is released under AGPLv3 license and available for free use with no hidden payments or feature limitations. New device support and policies are also distributed free of charge.

Azure Network Function Manager offers a consistent management experience for pre-validated mobile network functions to enable a private LTE/5G solution. The service also enables a seamless cloud-to-edge experience for Azure Marketplace network functions such as SD-WAN. Run on-premises, secure private 5G/LTE mobile networks that you can rapidly deploy from your choice of mobile packet core network function partner in the Azure portal. These networks provide ultra-low latency to enable real-time edge applications for use cases like augmented reality, virtual reality, and industrial robotics. Easily deploy and manage SD-WAN, VPN solutions at the edge from a rich ecosystem of partners. For a true hybrid experience, use Azure Marketplace to choose from a pre-validated list of marketplace network functions just like the network functions you use for Azure and Azure Virtual WAN, to help ensure proper operation with Azure Stack Edge.

rConfig is an open source network device configuration management utility that takes frequent configuration snapshots of devices. Open source, and built by Network Architects. We know what you need! rConfig is completely open source. Event the professional version. Built on top of world class open source software (Laravel & Vuejs), It is extensible, and you can participate in its development. Take snapshots of your routing table, mac, arp tables, as well as running configs and any other show commands. Get your network device's status for any point in time. rConfig allows you to deliver configs much faster throughv intuative, and simple automation capabilties. rConfig has implemented enhanced security to protect your assets with more coming in future releases. Such as SSO, config encryption & MFA. Add customizations, contribbute to rConfig, or purchase support for priority feature addition to your rConfig installations.

opConfig can automate everything from config push to alerting on changes and enforcing compliance. Introduce operational delegation to your organization and allow the troubleshooting of your network devices without giving 'root' access. Implement your compliance policy with PCI-DSS, HIPPA, COBIT and more using prebuilt industry standard rule sets (eg Cisco-NSA) or customize your own. Collects and backs-up configuration information in all environments, all vendors hardware and software, cloud-based, on-premise and hybrid. opConfig gives you the ability to create robust command sets that can aid in root cause analysis of faults. Our software solutions scale horizontally and vertically. We have provided monitoring and management solutions for over 200k nodes. Compare configuration data with older versions or against other devices. Use compliance policies as a task sheet to ensure all devices are compliant.

An open source network configuration analysis tool. Batfish finds errors and guarantees the correctness of planned or current network configurations. It enables safe and rapid network evolution, without the fear of outages or security breaches. Batfish was originally developed by researchers at Microsoft Research, UCLA, and USC. Many others have since contributed to it. It is currently maintained by Intentionet, who also offers Batfish Enterprise, a service that extends and enhances the core capabilities of Batfish. Analyze ACLs and firewalls rules using Batfish. Forwarding paths can be analyzed using traceroute and reachability queries. Analyze the impact of failures on the network and conduct Chaos Monkey style testing. Analyze routing tables computed by Batfish. Fast control plane analysis using an abstract representation. Network analysis in multivendor network with Cisco, Arista, Cumulus.