Category
Open-source startups in Observability
Metrics, logs, traces, error tracking and uptime monitoring: knowing what production is doing. 23 open-source startups in this directory are filed under Observability. 22 pushed code in the last 30 days, 1 has been quiet for 31–120 days, 0 have not pushed in over 120 days or are archived. The category is chosen by Jev, TypeSafe’s classifier, reading only the repository’s own name, description and homepage — one category per project, so something that spans two appears under whichever the classifier judged closest.
Ship status
22 of 23 pushed in the last 30 days.
The list
All 23, most-starred first.
The last column is the most recent push to any branch, by a person or a bot — it is not a claim that anyone is maintaining the project, and a quiet repository may be a finished one. The “built for” column and the “alternative to” chips are Jev’s answers about the same repository description, published with the rest of them.
| Project | What it does | Built for | Stars | Ship status | Last push |
|---|---|---|---|---|---|
 uptime-kumalouislam/uptime-kumaStill shipping | A fancy self-hosted monitoring tool | IT and operations | 92.3K | Still shipping | |
 netdatanetdata/netdataStill shipping | The fastest path to AI-powered full stack observability, even for lean teams. | IT and operationsalt to Datadog | 80.9K | Still shipping | |
 grafanagrafana/grafanaStill shipping | 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. | IT and operationsalt to Splunk | 77.3K | Still shipping | |
 sentrygetsentry/sentryStill shipping | Developer-first error tracking and performance monitoring | Developers | 45.5K | Still shipping | |
 statsexelban/statsStill shipping | macOS system monitor in your menu bar | Consumers | 42.5K | Still shipping | |
 changedetection.iodgtlmoon/changedetection.ioStill shipping | 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! | Consumers | 34.9K | Still shipping | |
 signozSigNoz/signozStill shipping | SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps. | Developersalt to Datadog | 32.3K | Still shipping | |
 beszelhenrygd/beszelStill shipping | Lightweight server monitoring with historical data, docker stats, and alerts. | IT and operationsalt to Datadog | 26.1K | Still shipping | |
 openobserveopenobserve/openobserveStill shipping | Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment. | IT and operationsalt to Datadog | 22.3K | Still shipping | |
 iiiiii-hq/iiiStill shipping | Effortlessly compose, extend, and observe every service in real-time for the first time ever. | Developers | 18.8K | Still shipping | |
 VictoriaMetricsVictoriaMetrics/VictoriaMetricsStill shipping | VictoriaMetrics: fast, cost-effective monitoring solution and time series database | IT and operations | 17.8K | Still shipping | |
 zipkinopenzipkin/zipkinSlowed | Zipkin is a distributed tracing system | Developersalt to New Relic | 17.5K | Slowed | |
 upptimeupptime/upptimeStill shipping | ⬆️ GitHub Actions uptime monitor & status page by @AnandChowdhary | Developers | 17.2K | Still shipping | |
 systeminformerwinsiderss/systeminformerStill shipping | A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ https://windows-internals.com | IT and operations | 16.2K | Still shipping | |
 cachetcachethq/cachetStill shipping | 🚦 Cachet, the open source, self-hosted status page system. | IT and operations | 15.3K | Still shipping | |
 speedtestlibrespeed/speedtestStill shipping | Self-hosted Speed Test for HTML5 and more. Easy setup, examples, configurable, mobile friendly. Supports PHP, Node, Multiple servers, and more | IT and operations | 15.2K | Still shipping | |
 pinpointpinpoint-apm/pinpointStill shipping | APM, (Application Performance Management) tool for large-scale distributed systems. | IT and operationsalt to New Relic | 13.9K | Still shipping | |
 nightingaleccfos/nightingaleStill shipping | Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server. | IT and operationsalt to Datadog | 13.3K | Still shipping | |
 keepkeephq/keepStill shipping | The open-source AIOps and alert management platform | IT and operations | 12.4K | Still shipping | |
 kubesharkkubeshark/kubesharkStill shipping | eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and humans via dashboard. | IT and operationsalt to Datadog | 12.1K | Still shipping | |
| pyroscopegrafana/pyroscopeStill shipping | Continuous Profiling Platform. Debug performance issues down to a single line of code | Developers | 11.7K | Still shipping | |
 Checkmatebluewave-labs/CheckmateStill shipping | Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. Don't be shy, join here: https://discord.com/invite/NAb6H3UTjK :) | IT and operationsalt to Datadog | 10.9K | Still shipping | |
 healthcheckshealthchecks/healthchecksStill shipping | Open-source cron job and background task monitoring service, written in Python & Django | IT and operations | 10.4K | Still shipping |
Related collections
Sideways from here.
The 8 largest other categories in the directory, then the other ways to slice it.