Best Free QoE/QoS Monitoring Software of 2025

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.

Secure Traffic Manager is a smart platform designed to oversee network traffic and application performance in real-time, ensuring that service quality remains high. It delivers extensive visibility into network activity, enabling proactive management of customer connections by monitoring their health. With its unique "distress score," you can pinpoint users experiencing subpar service and resolve problems before they worsen. Additionally, it provides valuable insights into bandwidth usage across different applications, helping to identify distressed applications and uncover the causes of their performance issues. STM allows for sophisticated, real-time control over network traffic, targeting various levels such as applications, users, and network segments. By correlating data, you can ascertain whether issues are related to a specific customer, an application, or a network segment, while also accessing both real-time and historical data for each customer to anticipate and mitigate potential challenges effectively. This comprehensive approach not only enhances user experience but also optimizes overall network efficiency.

VoIP monitoring software that provides deep insight into WAN performance and critical call QoS metrics. SolarWinds®, VoIP & Network Quality Manager can help you monitor VoIP performance by analysing Call Detail Records generated from Cisco CallManager and Avaya Communication Manager. This will enable you to identify and eliminate distortions, latency and noise. VNQM allows you to easily analyze call detail files (CDRs) from Cisco and Avaya Communication Managers, and identify metrics such as latency and network jitter. You can also avoid packet delays in VoIP calls. SolarWinds VNQM offers a variety of powerful capabilities, including monitoring VoIP call quality of services (QoS), packet loss and latency, as well as monitoring site-tosite WAN performance with Cisco IP SLA technology. You can also correlate call issues with WAN performance to assist in troubleshooting.

LibreQoS is a system focused on enhancing Quality of Experience (QoE) and implementing Smart Queue Management (SQM) for various networks, particularly catering to the needs of Internet Service Providers. This innovative approach aims to optimize network performance and improve user satisfaction.