The fastest path to AI-powered full stack observability, even for lean teams.
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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.
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 monitoring— MCP included! all for free or enjoy our SaaS plan!
- website-monitor
- website-monitoring
- change-detection
- monitoring
Fast C++ logging library.
- header-only
- cpp11
- cpp
- logging
Python logging made (stupidly) simple
SQL powered operating system instrumentation, monitoring, and analytics.
Self-Hosting Guide. Learn all about locally hosting (on premises & private web servers) and managing software applications by yourself or your organization. Including Cloud, LLMs, WireGuard, Automation, Home Assistant, and Networking.
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.
Why is this running? Trace any process, port, container, or file back to what started it - CLI + TUI.
A high-performance observability data pipeline.
- logs
- metrics
- observability
- forwarder
TranslatedCAT, as a basic component for server-side projects, provides multi-language clients for Java, C/C++, Node.js, Python, Go, etc. It has been deeply integrated into Meituan Dianping's infrastructure middleware frameworks (MVC framework, RPC framework, database framework, cache framework, etc., message queue, configuration system, etc.), providing Meituan Dianping's business lines with a rich set of system performance metrics, health status, real-time alerts, and more.
- apm
- java
- distributed
- realtime
🌲 super fast, all natural json logger
Daemon for easy but powerful stats aggregation
- statsd
- graphite
- javascript
- 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.
⬆️ GitHub Actions uptime monitor & status page by @AnandChowdhary
- uptime
- uptime-monitor
- status
- statuspage
Exporter for machine metrics
- prometheus-exporter
- prometheus
- node-metrics
- machine-metrics
Fluentd: Unified Logging Layer (project under CNCF)
- fluentd
- logging
- data-collector
- ruby
Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.
- monitoring
- time-series
- nightingale
- tsdb
Admin UI for administration of spring boot applications
- spring-boot-admin
- spring-cloud
- spring-boot
- java
The open-source agent for CI/CD reliability.
- alerting
- datadog
- grafana
- observability
Automated developer-oriented status page with alerting and incident support
- golang
- go
- health
- monitor
Matrix is a plugin style, non-invasive APM system developed by WeChat.