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Open Source Performance Monitoring (APM) Tools using GitHub

A curated collection of the best open source application Performance Monitoring tools for tracking application behavior. using GitHub.

NetData

Real-time monitoring for systems and applications

  • Stars

    81,117

  • Last commit

    1 day ago

  • License

    GPL-3.0
Powerful, efficient, and user-friendly monitoring solution for servers, containers, and applications with instant insights and alerts.

Open Source Alternative to:

DataDog

Apache SkyWalking

Distributed tracing, metrics, logs, and GenAI monitoring in one

  • Stars

    24,974

  • Last commit

    1 day ago

  • License

    Apache-2.0
Open source observability platform covering distributed tracing, metrics, logs, profiling, and LLM cost tracking across 10+ languages with eBPF support on Kubernetes.

Open Source Alternative to:

DataDog

Maple

OpenTelemetry observability with traces, logs, and metrics

  • Stars

    Stars growing over the last 30 days1,861

  • Last commit

    7 hours ago

  • License

    Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.

Open Source Alternative to:

DataDog
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