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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.

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.

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.

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.

Exporter for machine metrics

Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.

Open-source weight and body metrics tracker, with support for Bluetooth scales

Automated auditing, performance metrics, and best practices for the web.

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.

Scalable datastore for metrics, events, and real-time analytics

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

StatsD to Prometheus metrics exporter

:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on.

Synthetic monitoring engine with Playwright and Prometheus metrics

mackerel-agent is an agent program to post your hosts' metrics to mackerel.io.

Metrics exporter for Amazon AWS CloudWatch

A process for collecting metrics using JMX MBeans for Prometheus consumption

A cross-platform hardware monitor with real-time metrics, local history, and customizable dashboards.

🔬pgwatch: PostgreSQL metrics monitor/dashboard

Extract as much much detail as you want from GraphQL queries, served up from your Ruby app and the graphql gem.

Client library for collecting metrics.

PHPMD is a spin-off project of PHP Depend and aims to be a PHP equivalent of the well known Java tool PMD. PHPMD can be seen as an user friendly frontend application for the raw metrics stream measured by PHP Depend.

Pandas Network Analysis by UrbanSim: fast accessibility metrics and shortest paths, using contraction hierarchies :world_map:

procfs provides functions to retrieve system, kernel and process metrics from the pseudo-filesystem proc.

Fast and Lightweight Logs, Metrics and Traces processor for Linux, BSD, OSX and Windows

Exporter for Consul metrics

Server that accepts metrics via the Graphite protocol and exports them as Prometheus metrics

Prometheus Exporter for Valkey & Redis Metrics. Supports Valkey 9.x, 8.x, 7.x and various Redis versions

Chrome extension for automatic time tracking and metrics generated from your browsing activity.

Send data to multiple analytics integrations without re-implementing new API