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Monitoring & Observability
Application performance monitoring, log management, error tracking, status pages, and distributed tracing.
Trending in Monitoring & Observability
Uptime Kuma
Self-hosted Uptime Kuma replaces UptimeRobot and Pingdom with 20-second probe intervals, multi-protocol checks, and customizable public status pages.
93.2k+1.1kLinuxDocker1d ago
MITUptime & Status Pages
ProjectDiscovery
Open-source vulnerability scanner using YAML templates to detect CVEs, misconfigurations, and protocol flaws across applications and infrastructure.
32.6k+848Webtoday
Grafana
Grafana is an open-source observability platform replacing proprietary APM tools with decoupled, high-performance dashboards over any database.
77.7k+594DockerLinux
Prometheus
An open-source monitoring system with a dimensional data model.
66.9k+548LinuxDockertoday
49 tools found
Uptime Kuma
Self-hosted Uptime Kuma replaces UptimeRobot and Pingdom with 20-second probe intervals, multi-protocol checks, and customizable public status pages.
93.2kLinuxDocker1d ago
MITUptime & Status Pages
NetData
Netdata is an open-source real-time infrastructure monitor that tracks per-second server and container metrics locally with zero query latency.
81.3kWebtoday
GPL-3.0Application Performance Monitoring
Elasticsearch
Elasticsearch replaces hosted search APIs like Algolia with self-managed Lucene indexing, vector search, and analytics for predictable cluster costs.
78.5kWebtoday
Log Management
Grafana
Grafana is an open-source observability platform replacing proprietary APM tools with decoupled, high-performance dashboards over any database.
77.7kDockerLinuxtoday
AGPL-3.0Application Performance Monitoring
Prometheus
An open-source monitoring system with a dimensional data model.
66.9kLinuxDockertoday
Apache-2.0Monitoring & Observability
Sentry
Sentry replaces fragmented tools like LogRocket with unified full-stack error tracking, distributed tracing, and code-level session replay.
45.7kLinuxmacOSDockertoday
Apache-2.0Error Tracking
EasyPThe modern standard for Protobuf workflows
Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.
lintgeneratebreakingeasyp.lock
easyp.tech
ProjectDiscovery
Open-source vulnerability scanner using YAML templates to detect CVEs, misconfigurations, and protocol flaws across applications and infrastructure.
32.6kWebtoday
MITApplication Performance Monitoring
SigNoz
SigNoz is an open-source APM replacing Datadog with OpenTelemetry-native metrics, traces, and logs stored in a self-hosted ClickHouse database.
32.5kLinuxDockertoday
MITApplication Performance Monitoring
Grafana Loki
Grafana Loki is a log aggregation engine replacing Splunk and CloudWatch Logs with cost-effective label indexing and native S3 object storage.
29.1kLinuxDockertoday
AGPL-3.0Log Management
Apache SkyWalking
Apache SkyWalking replaces Dynatrace APM for distributed tracing and service topology, running self-hosted with eBPF profiling and no per-host SaaS bills.
25.0kLinuxDocker1d ago
Apache-2.0Application Performance Monitoring
Jaeger
Self-hosted alternative to Honeycomb and Datadog Tracing, Jaeger delivers OTLP-native distributed tracing and dependency mapping on OpenTelemetry.
23.4kLinuxDockertoday
Apache-2.0Distributed Tracing
Vector
Vector is an open-source observability pipeline replacing heavy log forwarders like Splunk UF with high-throughput, memory-efficient telemetry routing.
22.8kLinuxmacOSWindowstoday
MPL-2.0Log Management
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