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.
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Developer-first error tracking and performance monitoring
- crash-reporting
- crash-reports
- error-monitoring
- monitoring
:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.
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.
- observability
- application-monitoring
- opentelemetry
- distributed-tracing
Fast C++ logging library.
- header-only
- cpp11
- cpp
- logging
Like Prometheus, but for logs.
- loki
- grafana
- prometheus
- logging
Structured, pluggable logging for Go.
- logging
- logrus
- go
APM, Application Performance Monitoring System
- skywalking
- observability
- apm
- service-mesh
Blazing fast, structured, leveled logging in Go.
- golang
- logging
- structured-logging
- zap
A logger for just about everything.
Python logging made (stupidly) simple
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.
A high-performance observability data pipeline.
- logs
- metrics
- observability
- forwarder
Sends your logs to files, sockets, inboxes, databases and various web services
GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.
- goaccess
- c
- real-time
- data-analysis
Analyzes resource usage and performance characteristics of running containers.
🌲 super fast, all natural json logger
Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
- telegraf
- monitoring
- time-series
- metrics
Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.
- security
- compliance
- log-analysis
- vulnerability-detection
Mars is a cross-platform network component developed by WeChat.
Logstash - transport and process your logs, events, or other data
Realtime log viewer for containers. Supports Docker, Swarm and K8s.
✔️ Simple, pretty and powerful logger for android
Fluentd: Unified Logging Layer (project under CNCF)
- fluentd
- logging
- data-collector
- ruby