Discover best open source monitoring tools to track system health, performance & infrastructure. Ensure uptime, identify bottlenecks & improve reliability.
Devops · Hosting Control Panel · Monitoring
The top-rated web interface for Linux server management — one-click deployments and full control from your browser.
AI Development · Developer Tools · Devops
Build reliable LLM apps with integrated prompt engineering and observability
Developer Tools · Monitoring
Self-hosted error tracking with Sentry SDK compatibility
Monitoring
Self-hosted status page system with real-time incident reporting and uptime tracking
Monitoring
Monitor web pages for changes — free, self-hosted, with browser automation and real-time alerts.
Analytics · Devops · Monitoring
Self-hosted server monitoring with real-time dashboards and multi-channel alerts
Analytics · Monitoring
AI-powered observability without code changes
AI Assistants · Analytics · Monitoring
Self-hosted product analytics with AI insights and full data control
Developer Tools · Devops · Monitoring
Self-hosted feature flags for safe, data-driven releases
Devops · Monitoring
Self-hosted status page with HTTP, ICMP, TCP, DNS monitoring and Slack/PagerDuty alerts
Analytics · Devops · Monitoring
Web-based real-time NVIDIA GPU monitoring for DevOps and MLOps teams
Analytics · Data Engineering · Monitoring
Visualize metrics, logs, and traces from Prometheus, Loki, Elasticsearch, and more.
Analytics · Developer Tools · Monitoring
Self-hosted feature flags and A/B testing with enterprise-grade analytics
Developer Tools · Devops · Monitoring
Monitor your cron jobs and background tasks with alerts, badges, and team features.
Analytics · Developer Tools · Monitoring
Full-stack observability with session replay, errors, logs, and traces — all open source.
Analytics · Developer Tools · Monitoring
Manage, monitor, and secure your GraphQL APIs with schema registry and real-time analytics.
Monitoring · Security
Secure database and server access with AI-powered data masking and command blocking
Analytics · Developer Tools · Monitoring
Unified observability with ClickHouse and OpenTelemetry — search logs, traces, and replays in one place.
AI Development · Devops · Monitoring
Self-hosted email API with SMTP, multi-tenancy, and real-time logging.
Automation · Devops · Monitoring
Single pane of glass for alerts, AI-powered correlation, and automation
Developer Tools · Monitoring
Stunning status pages, batteries included
Analytics · Monitoring · Search
Visualize and analyze Elasticsearch data with interactive dashboards
AI Development · Monitoring
Observability for AI agents—tracing, evals, and SQL analytics in one platform
Data Engineering · Developer Tools · Devops
Self-hostable LLM observability and ML ops platform for teams building production AI apps
AI Development · Automation · Developer Tools
Build, test, and deploy AI agents with prompt engineering and real-time observability
Monitoring · Security
Real-time detection of malware C2 traffic, port scans, and suspicious network activity
AI Assistants · Analytics · Invoicing Finance
Open-source fraud and AML detection with real-time monitoring and AI-assisted investigations
Developer Tools · Devops · Monitoring
Track, evaluate, and deploy AI/ML models with full lineage and observability
Analytics · Monitoring
Blazing-fast system monitoring for desktops with a modern interface
Analytics · Data Engineering · Monitoring
X-Ray Vision for Your Infrastructure: Every Metric, Every Second.
Monitoring
Open-source alerting engine for scalable, multi-source alarm processing and distribution
Monitoring
All-in-one open-source monitoring and incident response platform
AI Assistants · Analytics · Monitoring
AI scouts that monitor the web and notify you of updates automatically
Analytics · Devops · Monitoring
Self-hostable synthetic monitoring and status pages for APIs and websites
Analytics · Devops · Monitoring
Real-time metering and usage-based billing for AI, APIs, and DevOps
Analytics · Ecommerce · Monitoring
Self-hosted analytics with funnels, cohorts, and A/B testing—no tracking cookies.
Analytics · Monitoring · Product Management
Self-hosted session replay with DevTools, real-user monitoring, and privacy controls
Analytics · Monitoring
Self-hosted web analytics with heatmaps, session recordings, and real-time reporting
Analytics · Automation · Monitoring
Track events and get push notifications on your phone or web app
Developer Tools · Devops · Monitoring
Manage, monitor, and optimize your LLM prompts in one open-source platform.
Analytics · Devops · Monitoring
Trace, evaluate, and optimize your LLM applications with open-source AI observability
Developer Tools · Devops · Monitoring
Unified CI/CD monitoring for GitHub, GitLab, Jenkins, Buildkite, Tekton & more
Developer Tools · Devops · Monitoring
Stop guessing port usage — document and manage your infrastructure ports in one place.
Analytics · Monitoring
All-in-one product analytics and growth platform for developers
Analytics · Monitoring · Search
Fast, cost-effective search for logs and traces on cloud storage
Developer Tools · Monitoring · Security
Powerful alternative to Postman & Charles Proxy with API mocking and HTTP interception
Analytics · Developer Tools · Monitoring
Debug production errors and performance issues in real time
Analytics · Monitoring
Unified observability for logs, metrics, and traces — open-source alternative to Datadog
Developer Tools · Monitoring
Self-hosted status page and endpoint monitoring in minutes
Analytics · Monitoring
Open source web analytics without cookies or tracking
Analytics · Monitoring
All-in-One Insight Hub: Analytics + Uptime + Server Status
Monitoring · Security
Detect threats inside your app—beyond firewalls and SIEMs.
Analytics · Data Engineering · Monitoring
Self-hosted, production-ready event tracking with real-time analytics and Segment API compatibility
Developer Tools · Monitoring · Security
Control feature releases with confidence—open-source feature flagging for dev teams.
Monitoring
Self-hosted uptime monitoring with 90+ notification options and a sleek dashboard
Analytics · Devops · Monitoring
Open source APM with tracing, metrics, and logs in one UI
Monitoring · Security
Comprehensive OSINT analysis for any website in one dashboard
Effective monitoring is crucial for maintaining reliable and performant software. These applications provide real-time visibility into the behavior of your systems, allowing you to quickly identify and resolve issues before they impact users. They move beyond simple uptime checks, offering deep insights into resource utilization, application response times, and error rates.
Typical features include alerting based on customizable thresholds, dashboarding for data visualization, and log aggregation to centralize troubleshooting information. Many solutions also feature historical data analysis for trend identification and capacity planning, as well as integrations with other development tools. Common data sources include CPU usage, memory consumption, network traffic, disk I/O, and application-specific metrics.
This category matters because it directly addresses critical problems like downtime, performance bottlenecks, and security threats. By proactively detecting anomalies, monitoring tools enable faster mean time to resolution (MTTR) and improved user experience. Automated alerts reduce the need for manual intervention, freeing up developers to focus on building features instead of firefighting. Robust monitoring is also essential for compliance and auditing in regulated industries.