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Apache SkyWalking is a free, self-hosted observability platform for cloud-native systems and AI workloads. It unifies traces, metrics, logs, and profiling, while topology, telemetry, profiles, and alerts help teams examine services, Kubernetes, and infrastructure. Its AI observability covers model and MCP call latency, token rates, agent conversations, tool calls, and recorded file changes. Agents support Java, Python, NodeJS, Go, Rust, PHP, Ruby, Nginx LUA, Kong, and client-side JavaScript. Integrations include OpenTelemetry OTLP, Istio, Envoy, Kubernetes, Grafana, and MCP.
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Middleware
Free plan AndroidAPIExtension+5Full-stack monitoring with AI-assisted operations — Middleware adds infrastructure, RUM, synthetic checks, browser testing, LLM observability, and OpsAI alongside traces and logs.
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Grafana Cloud Application Observability
Free plan AndroidAPIExtension+5Application monitoring with Grafana workflows — Grafana adds automatic service discovery, RED metrics, RCA workbench, Entity Graph, and Prometheus compatibility.
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Honeycomb
Free plan AndroidAPIiPhone+2Structured-telemetry debugging and AI investigations — Honeycomb adds AI-assisted Canvas investigations, natural-language queries, BubbleUp outlier analysis, and ordered agent timelines.
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Jaeger
Free plan APILinuxMac+3Open-source distributed tracing — Jaeger focuses on distributed tracing, sampling, dependency analysis, and multiple storage backends rather than SkyWalking’s broader signals.
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ManageEngine Applications Manager
Free plan AndroidiPhoneLinux+2Hybrid application and server monitoring — Applications Manager offers hybrid deployment with application limits, transaction tracing, RUM, dependency mapping, and log correlation.
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New Relic Kubernetes Monitoring
Free plan LinuxSelf-hostedWeb+1Kubernetes cluster and workload visibility — New Relic centers Kubernetes cluster health, events, workloads, Prometheus scraping, and linked application performance data.
Free plan · paid from $0.01 Visit site - 7
SigNoz
Free plan AndroidAPIiPhone+2OpenTelemetry-native logs, metrics, and traces — SigNoz adds vendor-free OpenTelemetry instrumentation, cross-signal formulas, anomaly and Apdex alerts, and custom dashboards.
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Uptrace
Free plan Open source APILinuxMac+3 - 9
Azure Application Insights
Free plan AndroidAPIiPhone+3 - 10
Azure Monitor
Free plan APILinuxMac+2 - 11
Blackfire.io
Free plan APIExtensionLinux+3 - 12
AppSignal
Free plan APIWeb - 13
Google Cloud Trace
Free plan APILinuxWeb - 14
Keymetrics
Free plan APILinuxSelf-hosted+1 - 15
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Sematext APM
Free plan APILinuxSelf-hosted+2 - 17
Skylight
Free plan APILinuxMac+1 - 18
RoRvsWild
Free plan AndroidiPhoneWeb - 19
Scout APM
Free plan APIWeb - 20
Elastic APM
Free plan LinuxMacWeb+1 - 21
Grafana Alerting
Free plan LinuxMacWeb+1 - 22
Pointer
Free plan APISelf-hostedWeb - 23
Chronosphere Application Observability
Free trial APILinuxMac+2 - 24
Dynatrace Application Monitoring
Free trial AndroidAPIiPhone+5 - 25
eG Enterprise
Free trial LinuxSelf-hostedWeb+1
Readers may prefer another product when they want a managed service, a focused tracing workflow, broader full-stack monitoring, or different pricing. SkyWalking’s free plan does not remove self-hosted deployment work. The GraalVM distribution is experimental, and Horizon UI support is native since version 11 but only partial for version 10. Compare deployment models, costs, telemetry coverage, investigation tools, integrations, supported environments, usage limits, retention, and whether AI workload visibility matters alongside conventional service observability.
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