Self-hosted monitoring, Grafana, Netdata, and the open-source observability stack
Datadog, New Relic, and Grafana Cloud all charge per host or per metric. Self-hosted Grafana + Prometheus + Loki gives the same dashboards on infra you already own.
The 24 picks, ranked by health
Health score is a 6-dimension composite. See methodology.
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. . Open source Application Performance Monitoring (APM) & Observability tool
Your window into all of your data
Open-source cron job and background task monitoring service, written in Python & Django
The fastest path to AI-powered full stack observability, even for lean teams.
The Prometheus monitoring system and time series database.
Enterprise-ready, Git native feature management solution
Enterprise-ready, Git native feature management solution
Prefect is a workflow orchestration framework for building resilient data pipelines in Python.
The open-source LLMOps platform: prompt playground, prompt management, LLM evaluation, and LLM observability all in one place.
Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring, all for free or enjoy our SaaS plan!
A self-hosted dashboard that puts all your feeds in one place
Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. YC W23
CNCF Jaeger, a Distributed Tracing Platform
A high-performance observability data pipeline.
VictoriaMetrics: fast, cost-effective monitoring solution and time series database
The open-source Observability 2.0 database. One engine for metrics, logs, and traces, replacing Prometheus, Loki & ES.
Create agents that monitor and act on your behalf. Your agents are standing by!
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
Fancy stream processing made operationally mundane
HOMER - 100% Open-Source SIP, VoIP, RTC Packet Capture & Monitoring
一款面向泛前端产品研发全生命周期的效率平台。
Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.
Specifically replacing
These categories on ossreplace cover the SaaS in this space.
Ready to self-host?
Most operators land on grafana (top health) and run it on hetzner for around $4.13/mo.