Best Observability tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Use Case Rankings

Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.

#ToolHealthShippingOpennessStarsScoreStatus
01Grafana
Open-source observability platform
100100Open core75.9k100Active
02Langfuse
๐Ÿชข Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. ๐ŸŠYC W23
100100OSI-approved OSS32.2k100Active
03SigNoz
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.
100100OSI-approved OSS31.7k100Active
04OpenObserve
Open source observability platform for logs, metrics, traces, frontend monitoring, pipelines and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
100100OSI-approved OSS20.5k100Active
05VictoriaMetrics
VictoriaMetrics: fast, cost-effective monitoring solution and time series database
100100OSI-approved OSS17.4k100Active
06Open SRE
Build your own AI SRE agents. The open source toolkit for the AI era โœจ
98100OSI-approved OSS9.6k99Active
07Graylog
Log management platform
98100License unknown8.1k98Active
08Centreon
Centreon is a network, system and application monitoring tool. Centreon is the only AIOps Platform Providing Holistic Visibility to Complex IT Workflows from Cloud to Edge.
95100OSI-approved OSS16398Active
09Latitude
Latitude is the open-source agent engineering platform
9598OSI-approved OSS4.5k97Active
10LangWatch
The platform for LLM evaluations and AI agent testing
9598OSI-approved OSS3.4k97Active
11HyperDX
Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.
93100OSI-approved OSS9.8k97Active
12OpenLIT
Open source platform for AI Engineering: OpenTelemetry-native LLM Observability, GPU Monitoring, Guardrails, Evaluations, Prompt Management, Vault, Playground. ๐Ÿš€๐Ÿ’ป Integrates with 50+ LLM Providers, VectorDBs, Agent Frameworks and GPUs.
93100OSI-approved OSS2.7k97Active
13Komari
Simple server monitoring tool.
9598OSI-approved OSS5.5k96Active
14Arthur
Monitoring and governance platform for AI and ML.
9198OSI-approved OSS8596Active
15Sentry
Developer-first error tracking and performance monitoring
9395OSI-approved OSS44.4k95Active
16Pyroscope
Continuous Profiling Platform. Debug performance issues down to a single line of code
9395OSI-approved OSS11.6k95Active
17OneUptime
Complete open-source monitoring and observability platform.
9295OSI-approved OSS7.4k95Active
18Traceway
The only tool you need to know what is happening and how to fix it.
9198OSI-approved OSS1.1k95Active
19Dozzle
Realtime log viewer for containers. Supports Docker, Swarm and K8s.
9394OSI-approved OSS13.9k93Active
20HolmesGPT
SRE Agent - CNCF Sandbox Project
9394OSI-approved OSS3k93Active
21Measure.sh
Open source mobile monitoring that gets to the root cause.
8795OSI-approved OSS1.3k93Active
22TraceRoot
TraceRoot - open-source observability and self-healing layer for AI agents. YC S25
8695OSI-approved OSS68993Active
23Laminar
Laminar - open-source observability platform purpose-built for AI agents. YC S24.
9087OSI-approved OSS3.1k92Active
24Maple
OpenTelemetry observability platform.
8795OSI-approved OSS1.6k92Active
25LogTide
๐Ÿ›ก๏ธ Open-source, self-hosted log management. Privacy-first alternative to Datadog & ELK. Lightweight, GDPR-compliant, and deployed in minutes with Docker.
8595OSI-approved OSS43292Active
26sitespeed.io
sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your websiteโ€™s speed using real browsers in various environments.
8495OSI-approved OSS5k92Active
27LibreNMS
Community-based network monitoring system.
8789OSI-approved OSS4.8k91Active
28Netdata
The fastest path to AI-powered full stack observability, even for lean teams.
8981OSI-approved OSS79.9k89Active
29Monoscope
Logs, traces, and metrics explorer with S3-compatible storage.
8487OSI-approved OSS1.5k89Active
30HertzBeat
An AI-powered next-generation open source real-time observability system.
8778OSI-approved OSS7.3k88Active
31Quickwit
Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.
8677OSI-approved OSS11.4k87Active
32Parseable
Parseable is an observability datalake built from first principles.
8580OSI-approved OSS2.4k87Active
33changedetection.io
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 monitoringโ€”all for free or enjoy our SaaS plan!
8772OSI-approved OSS32.6k86Active
34Tianji
Tianji: Insight into everything, Website Analytics + Uptime Monitor + Server Status. not only another GA alternatives
8082OSI-approved OSS3.1k86Active
35Logwiz
Self-hosted log management platform built with SvelteKit and Quickwit.
8182OSI-approved OSS7885Active
36OpenLinkHub
Open-source web dashboard for managing Corsair AIO hardware and system metrics.
8476OSI-approved OSS1.1k84Active
37Trickster
Open source HTTP reverse proxy cache and time series dashboard accelerator.
8173OSI-approved OSS2.1k82Active
38NodeGet
Next-generation server monitoring and management tools
8065OSI-approved OSS30478Active
39osquery
SQL powered operating system instrumentation, monitoring, and analytics.
7758License unknown23.4k77Active
40Tactical RMM
Remote monitoring and management tool.
7658License unknown4.4k76Active
41OpenITCOCKPIT
openITCOCKPIT is an Open Source system monitoring tool built for different monitoring engines like Nagios, Naemon and Prometheus.
7452OSI-approved OSS37974Warning
42Butler-SOS
Operational metrics microservice for monitoring Qlik Sense environments.
6766OSI-approved OSS2973Warning
43OpenLLMetry
Open-source observability for your GenAI or LLM application, based on OpenTelemetry
7447OSI-approved OSS7.3k72Warning
44Apache SkyWalking
Application performance monitoring and observability platform for distributed systems.
7346OSI-approved OSS24.9k71Warning
45Sessy
Email observability for AWS SES.
6861OSI-approved OSS90771Warning
46Tailpipe
select * from logs; Tailpipe is an open source SIEM for instant log insights, powered by DuckDB. Analyze millions of events in seconds, right from your terminal.
7336OSI-approved OSS57368Warning
47Uptrace
Open source APM: OpenTelemetry traces, metrics, and logs
6233OSI-approved OSS4.2k63Warning
48StackPatrol
Single-binary server monitor that alerts on infrastructure failures.
5446OSI-approved OSS163Warning
49Helicone
๐ŸงŠ Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 ๐Ÿ“
7214OSI-approved OSS6k61Warning
50Telescope
Web-based log viewer UI. Explore logs data stored in several sources: ClickHouse, Kubernetes or Docker
5320OSI-approved OSS70754Warning
51Beszel
Lightweight server monitoring with historical data, docker stats, and alerts.
5912OSI-approved OSS23.9k52Warning
52highlight.io
highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.
680OSI-approved OSS9.4k51Warning
53DodoPulse
Monitor macOS system metrics in real time with graphs for CPU, memory, GPU, network, and disk performance.
5914OSI-approved OSS351Warning
54Evidently
Evidently is โ€‹โ€‹an open-source ML and LLM observability framework. Evaluate, test, and monitor any AI-powered system or data pipeline. From tabular data to Gen AI. 100+ metrics.
4712OSI-approved OSS7.8k49Critical
55LLMOps Stack
Modular open-source LLMOps stack for API routing, evaluation, and observability.
590OSI-approved OSS14348Warning
56Nightmend
AI-powered monitoring platform with auto-remediation and runbooks.
3222OSI-approved OSS1942Critical
57CortexBrain
CortexBrain is an ambitious open-source project designed to build an intelligent, lightweight, and highly efficient monitoring platform for distributed cloud and hybrid (cloudโ€“edge) workflows
460OSI-approved OSS8340Critical
58CloudSavvy
Monitor and detect anomalies in AWS accounts to aid in cost reduction and performance improvement.
387OSI-approved OSS040Critical
59NeoHtop
๐Ÿ’ช๐Ÿป Blazing-fast system monitoring for your desktop (built with Rust, Tauri & Svelte)
380OSI-approved OSS9.2k38Critical
60Monigo
MoniGo is a performance monitoring library for Go apps, offering real-time insights into service-level and function-level metrics. With an intuitive UI, it enables developers to track and optimize performance. Get your Go app's dashboard up in just 10 seconds!
344OSI-approved OSS40937Critical
61AI Error Tracking Platform
AI-powered error tracking and monitoring platform with multi-channel notifications.
330OSI-approved OSS035Critical
62Beaver Iot
Beaver IoT is an open-source platform that empowers individuals and businesses to easily connect, monitor, and control smart devices.
264OSI-approved OSS7134Critical
63ctop
Top-like interface for container metrics
330OSI-approved OSS17.8k32Critical
64WireQuery
Session replay and API exploration tool.
280License unknown30732Critical
65Hypertrace
Open-source distributed tracing and observability platform.
280License unknown51931Critical
66Sampler
Tool for shell commands execution, visualization and alerting. Configured with a simple YAML file.
300OSI-approved OSS14.7k30Critical
67Baselinr
Open-source data quality platform for SQL warehouses.
230OSI-approved OSS328Critical
68FlowMetr
Workflow, pipeline, and AI agent observability platform for metrics, logs, and traces.
80OSI-approved OSS4122Critical

Evidence Watch

Tracked tools with useful public signals but no verdict score yet.

Akmatori

Open-source AI agents for incident management.

99 confidence

Beaconchain Dashboard

Open-source dashboard for ethereum and gnosis validator performance tracking.

71 confidence

Bottom

Yet another cross-platform graphical process/system monitor.

88 confidence

Chaos Genius

ML powered analytics engine for outlier/anomaly detection and root cause analysis

91 confidence

Checkmk

Checkmk - Best-in-class infrastructure & application monitoring

91 confidence

Drydock

Open source container update monitoring with notifications, audit log, OIDC auth, and metrics.

91 confidence

Elementary

The dbt-native data observability solution for data & analytics engineers. Monitor your data pipelines in minutes. Available as self-hosted or cloud service with premium features.

98 confidence

Future AGI

Open-source platform for evaluating, observing, and improving LLM and AI agent applications.

100 confidence

FUXA

Web-based process visualization and SCADA/HMI dashboard software.

99 confidence

Glances

Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems.

100 confidence

GoAlert

Open-source on-call scheduling, escalations, and notifications.

72 confidence

GreptimeDB

The open-source Observability 2.0 database. One engine for metrics, logs, and traces โ€” replacing Prometheus, Loki & ES.

100 confidence

Heimdall

Open source observability platform for MCP servers and apps.

57 confidence

HOMER

Open-source SIP, VoIP, and RTC packet capture and monitoring platform.

82 confidence

Jaeger

Distributed tracing platform for monitoring and troubleshooting microservices.

100 confidence

Kubeshark

Kubernetes network observability platform for inspecting cluster traffic.

100 confidence

Langtrace

Langtrace ๐Ÿ” is an open-source, Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics for popular LLMs, LLM frameworks, vectorDBs and more.. Integrate using Typescript, Python. ๐Ÿš€๐Ÿ’ป๐Ÿ“Š

94 confidence

llm.report

๐Ÿ“Š llm.report is an open-source logging and analytics platform for OpenAI: Log your ChatGPT API requests, analyze costs, and improve your prompts.

73 confidence

MCPCat

Analytics platform for MCP server owners.

100 confidence

MonadPulse

Independent open-source analytics platform for Monad with live blocks, validators, staking, gas, and alerts.

82 confidence

Monitoror

Unified monitoring wallboard.

78 confidence

Nagvis

Visualization addon for your open source monitoring core

97 confidence

Nerdlog

Nerdlog: fast, remote-first, multi-host TUI log viewer with timeline histogram and no central server

81 confidence

NetWatcher

Open-source distributed network monitoring platform.

62 confidence

netxms

NetXMS - Open Source network and infrastructure monitoring and management

93 confidence

Nightingale

Nightingale is to monitoring and alerting what Grafana is to visualization.

100 confidence

NyaayWatch

Open-source observability layer for India's courts.

62 confidence

odigos

Distributed tracing without code changes. ๐Ÿš€ Instantly monitor any application using OpenTelemetry and eBPF

90 confidence

OpenClaw Telemetry

Capture and monitor tool calls, LLM requests, and agent sessions with telemetry.

71 confidence

Opik

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.

100 confidence

OpsRobot

Observability platform for Digital Employee with tracing, session insights, and cost analysis for multi-agent workflows.

82 confidence

Pellametric

Open-source AI engineering analytics platform.

94 confidence

Percona PMM

Percona Monitoring and Management: an open source database monitoring, observability and management tool

100 confidence

Performance Co-Pilot

Performance Co-Pilot

98 confidence

Prometheus

The Prometheus monitoring system and time series database.

94 confidence

Pulse

Real-time monitoring for Proxmox, Docker, and Kubernetes with AI-powered insights, smart alerts, and a beautiful unified dashboard

88 confidence

RagaAI Catalyst

Python SDK for Agent AI Observability, Monitoring and Evaluation Framework. Includes features like agent, llm and tools tracing, debugging multi-agentic system, self-hosted dashboard and advanced analytics with timeline and execution graph view

62 confidence

Rejourney

Self-hostable observability tool for web and mobile applications.

100 confidence

ServiceRadar

Zero-trust open source network management and observability platform.

79 confidence

Shinzo

Observability platform for AI agents and MCP servers.

90 confidence

SigLens

100x Efficient Log Management than Splunk :rocket: Reduce your observability cost by 90%

66 confidence

Solectrus

SOLECTRUS is a smart photovoltaic dashboard that displays your energy production and consumption. It also calculates costs and savings, helping you maximize the benefits of your solar system.

97 confidence

StackTrace

Open-source observability stack with logs, metrics, alerts, and public status pages.

62 confidence

Subtrace

Network inspector for your backend

83 confidence

Thanos

Highly available Prometheus-compatible metrics system with long-term storage.

93 confidence

Token Telemetry

Token telemetry dashboard for AI coding agents that tracks tokens, sessions, tool calls, and reasoning.

80 confidence

Vector

A high-performance observability data pipeline.

97 confidence

WorldMonitor

Real-time global intelligence dashboard. AI-powered news aggregation, geopolitical monitoring, and infrastructure tracking in a unified situational awareness interface

100 confidence

Zabbix

Real-time monitoring of IT components and services, such as networks, servers, VMs, applications and the cloud.

95 confidence

Zipkin

Distributed tracing system for collecting and querying timing data from services.

98 confidence