List of the Top 5 Telemetry Software for JavaScript in 2025

SigNoz offers an open-source alternative to Datadog and New Relic, delivering a holistic solution for all your observability needs. This all-encompassing platform integrates application performance monitoring (APM), logs, metrics, exceptions, alerts, and customizable dashboards, all powered by a sophisticated query builder. With SigNoz, users can eliminate the hassle of managing multiple tools for monitoring traces, metrics, and logs. It also features a collection of impressive pre-built charts along with a robust query builder that facilitates in-depth data exploration. By embracing an open-source framework, users can sidestep vendor lock-in while enjoying enhanced flexibility in their operations. OpenTelemetry's auto-instrumentation libraries can be utilized, allowing teams to get started with little to no modifications to their existing code. OpenTelemetry emerges as a comprehensive solution for all telemetry needs, establishing a unified standard for telemetry signals that enhances productivity and maintains consistency across teams. Users can construct queries that span all telemetry signals, carry out aggregations, and apply filters and formulas to derive deeper insights from their data. Notably, SigNoz harnesses ClickHouse, a high-performance open-source distributed columnar database, ensuring that data ingestion and aggregation are exceptionally swift. Consequently, it serves as an excellent option for teams aiming to elevate their observability practices without sacrificing performance, making it a worthy investment for forward-thinking organizations.

Diagnosing and fixing performance problems and errors in your microservices involves a thorough examination of root causes through traces, logs, and metrics. By utilizing Aspecto's integrated remote sampling, you can significantly cut down on OpenTelemetry trace costs. The manner in which OTel data is presented plays a crucial role in your troubleshooting capabilities; with outstanding visualization, you can effortlessly drill down from a broad overview to detailed specifics. The ability to correlate logs with their associated traces with a simple click facilitates easy navigation. Throughout this process, maintaining context is vital for quicker issue resolution. Employ filters, free-text search, and grouping options to navigate your trace data efficiently, allowing for the quick pinpointing of issues within your system. Optimize costs by sampling only the essential information, directing your focus on traces by specific languages, libraries, routes, and errors. Ensure data privacy by masking sensitive details within trace data or certain routes. Moreover, incorporate your daily tools into your processes, such as logs, error monitoring, and external events APIs, to boost your operational efficiency. This holistic approach not only streamlines your troubleshooting but also makes it cost-effective and highly efficient. By actively engaging with these strategies, your team will be better equipped to maintain high-performing microservices that meet both user expectations and business goals.

Minimize delays, identify inefficiencies, and effectively resolve issues. Join a rapidly expanding network of global enterprises that are achieving up to 20 times the value and return on investment through the use of KloudMate, which significantly surpasses other observability solutions. Seamlessly monitor crucial metrics and relationships while detecting anomalies with alerts and tracking capabilities. Quickly locate vital 'break-points' in your application development cycle to tackle challenges before they escalate. Analyze service maps for each element of your application, unveiling intricate connections and dependencies among components. Track every request and action to obtain a thorough understanding of execution paths and performance metrics. No matter whether you are functioning within a multi-cloud, hybrid, or private setting, leverage unified infrastructure monitoring tools to evaluate metrics and derive meaningful insights. Improve your debugging precision and speed with a comprehensive overview of your system, enabling you to uncover and address problems more promptly. By adopting this strategy, your team can uphold exceptional performance and reliability across your applications, ultimately fostering a more resilient digital infrastructure. This proactive approach not only enhances operational efficiency but also contributes significantly to overall business success.

Phoenix is an open-source library designed to improve observability for experimentation, evaluation, and troubleshooting. It enables AI engineers and data scientists to quickly visualize information, evaluate performance, pinpoint problems, and export data for further development. Created by Arize AI, the team behind a prominent AI observability platform, along with a committed group of core contributors, Phoenix integrates effortlessly with OpenTelemetry and OpenInference instrumentation. The main package for Phoenix is called arize-phoenix, which includes a variety of helper packages customized for different requirements. Our semantic layer is crafted to incorporate LLM telemetry within OpenTelemetry, enabling the automatic instrumentation of commonly used packages. This versatile library facilitates tracing for AI applications, providing options for both manual instrumentation and seamless integration with platforms like LlamaIndex, Langchain, and OpenAI. LLM tracing offers a detailed overview of the pathways traversed by requests as they move through the various stages or components of an LLM application, ensuring thorough observability. This functionality is vital for refining AI workflows, boosting efficiency, and ultimately elevating overall system performance while empowering teams to make data-driven decisions.

OpenTelemetry offers a comprehensive and accessible solution for telemetry that significantly improves observability. It encompasses a collection of tools, APIs, and SDKs that facilitate the instrumentation, generation, collection, and exportation of telemetry data, including crucial metrics, logs, and traces necessary for assessing software performance and behavior. This framework supports various programming languages, enhancing its adaptability for a wide range of applications. Users can easily create and gather telemetry data from their software and services, and subsequently send this information to numerous analytical platforms for more profound insights. OpenTelemetry integrates smoothly with popular libraries and frameworks such as Spring, ASP.NET Core, and Express, among others, ensuring a user-friendly experience. Moreover, the installation and integration process is straightforward, typically requiring only a few lines of code to initiate. As an entirely free and open-source tool, OpenTelemetry has garnered substantial adoption and backing from leading entities within the observability sector, fostering a vibrant community and ongoing advancements. The community-driven approach ensures that developers continually receive updates and support, making it a highly attractive option for those looking to boost their software monitoring capabilities. Ultimately, OpenTelemetry stands out as a powerful ally for developers aiming to achieve enhanced visibility into their applications.