Monitoring and observability tools in 2026

Narrower

• Uptime monitors 33 Pingdom, UptimeRobot and Better Stack Uptime
• Status page tools 33 Atlassian Statuspage, Status.io and Instatus
• Incident management and on-call tools 21 PagerDuty, incident.io and Rootly
• Log management tools 27 Sumo Logic, Splunk Enterprise and Loggly
• Error tracking tools 11 Sentry, Bugsnag and Rollbar
• Telemetry collectors and pipelines 10 Datadog Observability Pipelines, Cribl Stream and Vector

Commercial monitoring and observability tools

1. 1
   Datadog Datadog, Inc.

   See metrics from all of your apps, tools & services in one place with Datadog’s cloud monitoring as a service solution. Try it for free.

   Complete system Production-ready An engineering organisation wants every observability signal in one well-integrated product and has the budget.

   2.4k readers a month Since 2010 Commercial
2. 2
   Grafana Cloud Grafana Labs

   Monitor metrics, logs, traces, and profiles with Grafana Cloud—an AI-powered, fully managed observability platform built on leading open source tools.

   Complete system Production-ready A team likes Grafana and open-source standards and wants them managed, with the option to self-host later.

   1.7k readers a month Since 2014 Commercial
3. 3
   Dynatrace Dynatrace

   Innovate faster, operate more efficiently, and drive better business outcomes with observability, AI, automation, and application security in one platform.

   Complete system Production-ready A large enterprise with complex hybrid environments wants automatic discovery and causal problem detection.

   1k readers a month Since 2005 Commercial
4. 4
   Atlassian Statuspage Atlassian

   Statuspage keeps users informed during incidents. Communicate real-time service status, cut duplicate support tickets, and build customer trust.

   Complete system Production-ready A SaaS company wants the familiar status page format customers expect, especially if it uses Atlassian tools.

   Commercial
5. 5
   New Relic New Relic, Inc.

   New Relic is an AI-powered observability platform that correlates your telemetry across your entire stack, so you can isolate the root cause and reduce MTTR.

   Complete system Production-ready A team wants full-stack observability with a generous free tier and usage-based pricing.

   685 readers a month Since 2008 Commercial
6. 6
   PagerDuty PagerDuty, Inc.

   Turn incidents into intelligence. PagerDuty's AI-first Operations Platform helps you automate, resolve, and prevent critical issues — from detection to resolution.

   Complete system Production-ready An organisation runs critical services with formal on-call rotations and needs reliable paging.

   366 readers a month Since 2009 Commercial
7. 7
   AppDynamics Cisco

   Get unified observability across any environment, any stack. Ensure resilience of digital systems, identify problems proactively, find root causes, and resolve them fast.

   Complete system Production-ready An enterprise already runs AppDynamics for key Java and .NET applications.

   258 readers a month Since 2008 Commercial
8. 8
   Sumo Logic Sumo Logic

   Sumo Logic provides best-in-class cloud monitoring, log management, SIEM tools, and real-time insights for web and SaaS based apps.

   Complete system Production-ready A mid-size or large company wants hosted log analytics and security monitoring without operating Splunk or Elasticsearch itself.

   219 readers a month Since 2010 Commercial
9. 9
   Datadog Observability Pipelines Datadog, Inc.

   Control costs, simplify SIEM migrations, and manage sensitive data at scale

   Complete system Production-ready You already pay for Datadog and want to control log volume or move data between SIEMs without adding another vendor.

   Commercial
10. 10
    Splunk Observability Cloud Cisco

    Gain unified visibility, find and fix problems faster and take control of your data and costs.

    Complete system Production-ready An enterprise already uses Splunk for logs and security and wants metrics and traces alongside.

    Commercial
11. 11
    Splunk Enterprise Cisco

    Unify security and observability at petabyte scale on the Splunk data platform for trusted AI. Stop threats and prevent downtime at machine speed.

    Complete system Production-ready A large organisation needs one platform for security and operations data at high volume and has staff who can write SPL and run the deployment.

    Commercial
12. 12
    Pingdom SolarWinds

    Swedish website monitoring software company

    Complete system Production-ready A business wants established external monitoring of website uptime and performance.

    25 readers a month Since 2005 Commercial
13. 13
    Elastic Observability Elastic NV

    Unify logs, metrics, and traces on one platform. Agentic AI automates root cause analysis and remediation — full-stack observability at petabyte scale.

    Complete system Production-ready A team already runs Elasticsearch for logs or search and wants observability on the same stack.

    Commercial
14. 14
    Loggly SolarWinds

    Log Analysis / Log Management by Loggly: the world's most popular log analysis & monitoring in the cloud. Free trial. See why ⅓ of the Fortune 500 use us!

    Complete system Production-ready You already use SolarWinds products and want hosted log search that fits with them.

    13 readers a month Since 2009 Commercial
15. 15
    Status.io Status.io

    Status.io provides fully hosted status pages for uptime monitoring and incident communications. Keep users informed during outages with real-time updates. Trusted by teams worldwide.

    Complete system Production-ready You need a hosted status page with many notification options at a mid-range price.

    Commercial
16. 16
    Cribl Stream Cribl

    Collect, reduce, and shape your data with Cribl Stream. Our product offers a simple way to drive your data engine forward. Start streaming today.

    Complete system Production-ready Your log ingest bill is large and you want to cut, reshape or split data before it reaches expensive analytics tools.

    Commercial
17. 17
    Honeycomb Honeycomb.io

    Honeycomb is the observability platform built for AI-era software. Fast queries, unified telemetry, and LLM observability. Used by Slack, Intercom, and Dropbox.

    Complete system Production-ready Engineers debugging distributed systems need to slice traces by any attribute, not just predefined dashboards.

    Commercial
18. 18
    Chronosphere Chronosphere

    Find and fix customer-impacting issues faster and stop paying for data you don’t use. Chronosphere is the world’s most reliable observability platform for microservices and containers.

    Complete system Production-ready A large organisation running Prometheus-scale metrics on Kubernetes has observability bills out of control.

    Commercial
19. 19
    UptimeRobot UptimeRobot

    Start monitoring in 30 seconds. Use advanced SSL, keyword and cron monitoring. Get notified by email, SMS, Slack and more. Get 50 monitors for FREE!

    Complete system Production-ready You want simple, cheap or free monitoring of a handful of sites with alerts.

    Commercial
20. 20
    Better Stack Uptime Better Stack

    The most reliable uptime monitoring. Get 10 monitors, 10 heartbeats and a status page with 3-minute checks totally FREE.

    Complete system Production-ready A small engineering team wants uptime checks, on-call and status pages in one inexpensive tool.

    Commercial
21. 21
    Checkly Checkly

    The only monitoring platform built from the ground up to be operated by developers and agents to give teams a clear signal of application health.

    Developer tool Production-ready Developers want end-to-end tests of critical user flows running as production monitoring from the same code.

    Commercial
22. 22
    Instatus Instatus

    Create a free status page in seconds. Monitor your services, fix incidents with your team, and share your status with customers.

    Complete system Production-ready A startup wants a good-looking status page cheaply.

    Commercial
23. 23
    incident.io incident.io

    incident.io is a software reliability platform unifying on-call, agentic root cause analysis, incident response, and status pages – helping teams resolve issues faster.

    Complete system Production-ready An engineering team coordinates incidents in Slack and wants on-call and response in one modern tool.

    Commercial
24. 24
    Rootly Rootly

    The all-in-one AI incident management platform for fast-moving engineering teams to detect, manage, resolve, and learn from incidents faster.

    Complete system Production-ready A fast-moving engineering team wants configurable incident workflows in Slack as an alternative to incident.io.

    Commercial
25. 25
    FireHydrant FireHydrant

    All-in-one incident management software for modern teams. FireHydrant helps you plan, respond, and resolve faster with smart alerting, on-call scheduling, AI-powered workflows, and post-incident retros.

    Complete system Production-ready An engineering team wants structured incident processes and a service catalogue outside PagerDuty.

    Commercial
26. 26
    Papertrail SolarWinds

    Papertrail lets you search, react, and resolve infrastructure issues instantly with real-time log tailing. Sign up and start debugging.

    Complete system Production-ready A small team wants hosted log tailing and search set up in minutes, without running its own log stack.

    Commercial
27. 27
    Better Stack Logs Better Stack

    30x cheaper than Datadog. Predictable pricing. Exceptional customer support. 7,000+ happy customers. 60-day money back guarantee.

    Complete system Production-ready A startup or small team wants cheaper hosted logging than Datadog, with uptime checks and on-call from the same vendor.

    Commercial
28. 28
    Sentry Functional Software, Inc.

    Application performance monitoring for developers & software teams to see errors clearer, solve issues faster & continue learning continuously. Get started at sentry.io.

    Complete system Production-ready Almost any software team that ships code to users and wants to see errors as they happen, with SDKs for most languages.

    Commercial
29. 29
    Bugsnag SmartBear Software

    Unlock performance & error monitoring for your application with BugSnag. Monitor, analyze, and optimize in real time to ensure a seamless user experience.

    Complete system Production-ready Mobile app teams that care about crash-free session rates per release and want an established hosted tool.

    Commercial
30. 30
    Rollbar Rollbar

    Error monitoring for software teams, Resolve to open a tested fix, and Rollbar Lines to work your whole backlog on your own systems. Free plan available.

    Complete system Production-ready A team wants a hosted error tracker focused on errors and deploys rather than full observability, with a free plan to start.

    Commercial
31. 31
    Honeybadger Honeybadger Industries

    Real-time error tracking, APM & logging for your favorite stack. Helps developers find and fix issues faster. Get started for free.

    Complete system Production-ready A small team, especially a Rails shop, wants errors, uptime and job monitoring from one simple vendor.

    Commercial
32. 32
    Raygun Raygun

    Raygun gives you a window into how users are really experiencing your software applications. Detect, diagnose and resolve issues that are affecting end users.

    Complete system Production-ready A team, often on .NET, wants crash reports and real user performance data in one hosted product.

    Commercial

New open-source projects

1. 1
   Overlook bnlqn

   One page that tells you whether your homelab is fine.

   Complete system Experimental You run a homelab and want a quick at-a-glance health view.

   ★ 149 MIT Go Active, pushed today
2. 2
   KYB alex09x

   Git-backed shared memory for AI agent fleets: searchable knowledge base, incident and task tracking, every write versioned and attributed. CLI, HTTP API and MCP server.

   Complete system Experimental You run several coding agents and want them to share versioned, attributable memory.

   ★ 127 MIT Rust Active, pushed 7 days ago
3. 3
   Pulsy.org SelmiAbderrahim

   Pulsy is a free, open-source, self-hosted uptime monitoring platform with incident tracking, TLS certificate checks, multi- channel alerts, and public status pages

   Complete system Experimental Only for trying out; established tools cover the same features.

   ★ 140 AGPL-3.0 TypeScript Active, pushed 5 days ago

Open-source monitoring and observability tools

Complete systems you can adopt 9

1. 1
   Uptime Kuma louislam

   A fancy self-hosted monitoring tool

   Complete system Production-ready You want an easy, UptimeRobot-style monitor on your own server for a homelab or small business.

   ★ 93k MIT JavaScript Active, pushed 2 days ago
2. 2
   Netdata netdata

   The fastest path to AI-powered full stack observability, even for lean teams.

   Complete system Production-ready You want detailed server and container monitoring running within minutes without building Prometheus and Grafana yourself.

   ★ 81k GPL-3.0 Go Active, pushed 7 days ago
3. 3
   Grafana grafana

   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.

   Complete system Production-ready You need shared dashboards and alerts across several data sources, self-hosted or on Grafana Cloud.

   ★ 78k AGPL-3.0 TypeScript Active, pushed today
4. 4
   Prometheus prometheus

   The Prometheus monitoring system and time series database.

   Complete system Production-ready You run services or Kubernetes and need metrics and alerting with the de facto standard toolset.

   ★ 67k Apache-2.0 Go Active, pushed today
5. 5
   Loki grafana

   Like Prometheus, but for logs.

   Complete system Production-ready You already use Prometheus and Grafana and want low-cost centralised logs.

   ★ 29k AGPL-3.0 Go Active, pushed today
6. 6
   SkyWalking apache

   APM, Application Performance Monitoring System

   Complete system Production-ready You run many JVM microservices and want a self-hosted APM with automatic agent instrumentation.

   ★ 25k Apache-2.0 Java Active, pushed today
7. 7
   Jaeger jaegertracing

   CNCF Jaeger, a Distributed Tracing Platform

   Complete system Production-ready You need self-hosted tracing to follow requests through services and find latency problems.

   ★ 23k Apache-2.0 Go Active, pushed 5 days ago
8. 8
   Vector vectordotdev

   A high-performance observability data pipeline.

   Complete system Production-ready You need a fast, single-binary agent or aggregator to reshape and ship telemetry, for example to cut observability costs.

   ★ 23k MPL-2.0 Rust Active, pushed today
9. 9
   OpenObserve openobserve

   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.

   Complete system Production-ready You want a cheaper self-hosted alternative to Elasticsearch, Splunk or Datadog for logs and traces.

   ★ 23k AGPL-3.0 TypeScript Active, pushed 7 days ago

Developer tools 1

1. 1
   Witr pranshuparmar

   Why is this running? Trace any process, port, container, or file back to what started it - CLI + TUI.

   Developer tool Usable You often find mystery processes or ports on servers and want a quick answer to 'why is this running'.

   ★ 23k Apache-2.0 Go Active, pushed 11 days ago

All 123 open-source monitoring and observability projects

Compared head to head

Looking for an alternative to

Open-source licenses

• Permissive: 94. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
• Network copyleft: 13. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
• Strong copyleft: 11. If you distribute the program or anything built on it, you must release the whole source under the same license.
• Weak copyleft: 3. Changes to the licensed files must be shared, but you can link them into a closed program.
• Public domain: 1. No conditions at all. You can copy, change and sell the code without even keeping the notice.

Languages

Go 30, TypeScript 26, Python 12, JavaScript 10, PHP 7, Rust 6, Java 5, Ruby 3, Shell 3, Markdown 2, C 2, C++ 2, HTML 2, C# 2, Vue 2, Kotlin 1, Jinja 1, Elixir 1, Svelte 1, Astro 1, Perl 1 and CSS 1.