14 Open Source Alternatives to DataDog

NetData simplifies infrastructure monitoring by collecting thousands of metrics per second from servers, containers, IoT devices and more. The platform features automated visualizations, intelligent alerts, and AI-assisted anomaly detection, all while keeping your data securely on-premise. Its decentralized design ensures minimal resource usage and cost efficiency, making it an attractive alternative to traditional, costly monitoring tools.

Sentry provides robust error monitoring, performance tracing, session replay, and code coverage capabilities, giving developers detailed context such as environment data, commit specifics, and system metrics. It automates alerts and integrates with tools like Slack, Jira, and GitHub, making it easy for teams to track and resolve issues swiftly. With support for a wide range of platforms and programming languages, Sentry is designed to improve development velocity without sacrificing quality.

Highlight integrates session replay, error monitoring, logging, and tracing into one seamless platform, enabling developers to understand the 'what', 'why', and 'how' behind every user interaction. With powerful dashboards, extensive framework support, and self-hosting options, the tool leverages open source technologies like OpenTelemetry to provide actionable insights into your entire stack.

OpenStatus monitors your services by testing API endpoints, DNS, SSL, SMTP, ping, and web pages from various global locations. Its features include latency monitoring, integration with OpenTelemetry, and comprehensive alerting capabilities through channels like Email, SMS, Slack, and Discord. Additionally, the platform offers customizable status pages that build trust and reduce customer service inquiries.

OneUptime consolidates 8+ essential tools into a single platform, offering real-time monitoring, beautiful status pages, efficient incident management, robust on-call alerts, and powerful log and performance analysis. The platform supports extensive integrations, advanced workflows, and even AI-driven error resolution through its Reliability Copilot feature, enabling teams to quickly detect, debug, and resolve issues while improving system reliability.

Statusnook offers a straightforward deployment process using various methods including standalone installation, reverse proxy, Docker, or a one-click cloud deployment. The tool provides customizable monitors that support high frequency checks and adjustable HTTP methods, headers, and bodies. It automatically configures HTTPS with certificate renewal and includes in-app updates for seamless upgrades. Additionally, build and share a public status page featuring incident timelines and health summaries while privately receiving monitor alerts through Slack and SMTP integrations.

Uptrace leverages OpenTelemetry to deliver real-time insights into distributed systems by correlating traces, metrics, and logs on a single dashboard. It simplifies monitoring with built-in features like service graphs, custom dashboards, and alerting. The tool supports flexible deployment options, allowing you to self-host or use the managed cloud service. Designed for scalability, it ensures quick setup, cost savings, and predictable billing based on ingested data size and active timeseries.

Logstash ingests data from a multitude of sources such as logs, metrics, web applications, and data stores in a continuous, streaming fashion. With a rich library of filters—including grok for parsing and IP-to-geo transformations—it cleans, structures, and tailors your data for analysis. The pipeline’s durability is ensured by its persistent queue and at-least-once delivery, while centralized management and monitoring features provide full deployment visibility.

HyperDX simplifies the process of instrumenting and correlating distributed traces, logs, and metrics for rapid issue resolution. It features intuitive full-text search, automatic clustering of log patterns, and correlated session replays that trace every user request from client to server. Built with ClickHouse, it enables swift searches across terabytes of data while remaining vendor agnostic with native OpenTelemetry support, all designed to empower high-velocity engineering teams.

SigNoz ingests data from over 50 sources to offer a unified view of metrics, traces, logs, dashboards, alerts, and exceptions. The tool is designed to help you track user requests across services, troubleshoot performance issues in real time, and gain richer debugging context through correlated signals. With flexible deployment options including self-hosting, cloud, and on-prem solutions, it leverages a high-performance ClickHouse-based storage for rapid data queries and analysis.

Bugsink tracks errors in real time, aggregating all the necessary information in a single location to facilitate quick triage and resolution. Compatible with Sentry’s open source SDKs, it is easy to integrate into your applications. Its simple installation process, including Docker deployment, makes it an efficient, lightweight alternative for error monitoring on minimal hardware.

VictoriaMetrics provides a robust monitoring solution with an open-source base that scales from small projects to enterprise-grade systems. It supports high-speed data ingestion, flexible query capabilities with MetricsQL, and compatibility with protocols like Prometheus, Influx, and Graphite. The platform is engineered for cost-efficient network traffic reduction and storage optimization, and it offers various deployment options including on-premise, cloud, and hybrid setups.

Prometheus powers metrics collection with its highly dimensional data model, enabling detailed insights through key-value pair metrics. Its PromQL provides powerful queries for generating ad-hoc graphs, tables, and alerts, while built-in visualization, efficient local storage, and simple operational design ensure reliable and scalable monitoring for diverse systems.

The platform streamlines device provisioning, asset management, and telemetry data collection while offering a robust rule engine for event processing and automation. With over 30 customizable widgets for dashboards and seamless API integrations, ThingsBoard delivers real-time data visualization and scalable performance designed for growing IoT deployments. Multiple deployment options and subscription plans make it an ideal solution for both simple proof-of-concepts and enterprise-grade projects.