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Open Source Performance Monitoring (APM) Tools using Vitest

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

Petabyte-scale observability, without the massive bill.
  • Stars

    22,479
  • Last commit

    3 hours ago
  • License

    AGPL-3.0
Monitor logs, metrics, and traces with an open-source observability platform. Achieve petabyte scale with 140x lower storage costs and high performance.

Open Source Alternative to:

Self-hosted session replay with complete data control
  • Stars

    13,044
  • Last commit

    1 day ago
  • License

    AGPL-3.0
Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.

Open Source Alternative to:

Real-time observability for modern web applications
  • Stars

    9,384
  • Last commit

    23 hours ago
  • License

    Apache-2.0
Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Open Source Alternative to:

OpenTelemetry observability with traces, logs, and metrics
  • Stars

    Stars growing over the last 30 days1,861
  • Last commit

    3 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: