Open source metrics projects
Every project in the registry tagged metrics, ranked by real GitHub adoption.
Unified observability for metrics, logs, traces, and more
Open source metrics collection, storage, and alerting
Open-source observability platform for cloud-native apps
Purpose-built time series database for real-time systems
Time-series database and historian for industrial data
Distributed tracing, metrics, logs, and GenAI monitoring in one
Collect, transform, and route logs and metrics in one tool
Petabyte-scale observability, without the massive bill.
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
High-performance time series database for metrics and logs
📊 An infographics generator with 30+ plugins and 300+ options to display stats about your GitHub account and render them as SVG, Markdown, PDF or JSON!
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
Exporter for machine metrics
Resilience4j is a fault tolerance library designed for Java8 and functional programming
Full-stack observability without the enterprise price tag
A declarative JavaScript library for application development using cloud services.
Real-time observability for modern web applications
Privacy-focused analytics without the complexity
Full-stack observability without code changes
OpenTelemetry Collector
Monitor LLM performance with open-source observability
An AI-powered next-generation open source real-time observability system.
Unified observability database for metrics, logs, and traces
OpenTelemetry Go API and SDK
Enterprise monitoring for networks, apps, and infrastructure
Add-on agent to generate and expose cluster-level metrics.
A highly scalable real-time graphing system
Powerful observability made simple for developers
Hubble - Network, Service & Security Observability for Kubernetes using eBPF
Open source observability platform for modern applications
Main repository for Datadog Agent
Open source monitoring for complex IT infrastructure
Monoscope lets you ingest and explore your logs, traces and metrics. We store these in S3 compatible buckets. Query in natural language via LLMs.
Fast scalable time series database
Cookie-less analytics for privacy-focused insights
All-in-one observability with unlimited data ingestion
Cookieless, privacy-first web analytics without the complexity
Pretty CSS analytics on the CLI
Privacy-friendly web analytics for data-driven decisions
Related tags
Frequently asked questions
How many open source metrics projects are there?
This registry tracks 40 projects tagged metrics, with 540,975 GitHub stars between them. The most-adopted is Grafana at 76,791 stars.
Are these metrics projects free to use?
Yes — 38 of the 40 carry an explicit open-source licence across 5 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which metrics project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these metrics projects still maintained?
35 of the 40 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.