OpenObserve

OpenAnalytics is an open-source, self-hostable web analytics stack developed by OpenLabs. It uses a lightweight browser tracker without cookies, fingerprinting, or cross-site profiles, and provides aggregate-only analytics for page views, custom events, sessions, web vitals, funnels, retention, embeddable widgets, public sharing, live presence, and Stripe revenue attribution. The repository is a pnpm monorepo comprising a tracker, ingestion collector, queue worker, API, ClickHouse query gateway, realtime SSE service, Next.js dashboard, and CLI. Postgres stores control-plane data, ClickHouse stores events and rollups, and Valkey provides the event queue and realtime cache. The query gateway is the only component permitted to read ClickHouse and verifies Ed25519-signed query envelopes; visitor identity uses a salted hash that rotates nightly, while optional city-level geolocation is resolved against a database on the host. It also includes CSV/JSON import and export, an MCP server, and an AI assistant. The project is licensed under AGPL-3.0. It can be self-hosted with Docker Compose, or used through the authors' hosted instance at getopen.so. Release images are published to GitHub Container Registry.

OpenTelemetry is an open-source, vendor-neutral observability framework for cloud-native software. It provides APIs, SDKs, automatic-instrumentation agents, and collector services for capturing distributed traces, metrics, logs, and contextual metadata such as baggage. Its context-propagation mechanism correlates telemetry across service boundaries and carries trace identity through an application’s request path, including standard HTTP communication. The OpenTelemetry Collector receives, processes, filters, and routes telemetry to observability backends such as Jaeger, Prometheus, commercial systems, or custom solutions. It supports native SDKs for more than 12 languages and is hosted as a graduated project by the Cloud Native Computing Foundation.

OpenSearch is a community-driven, Apache 2.0-licensed open-source search and analytics suite for ingesting, searching, visualizing, and analyzing data. Its capabilities include vector search, enterprise and document search, observability and log analysis, security analytics, anomaly detection, and machine-learning and AI tools. In the cited OpenRAG pipeline, OpenSearch serves as the vector-search and vector-store component.

Superlog is an open-core, self-hosted observability workspace for OpenTelemetry data, developed by Superlog Labs. It ingests traces, logs, and metrics, groups noisy signals into incidents, and provides a local-first interface for investigating production systems. The open-source community edition includes a web app and API, an OTLP intake proxy, worker processes for incident grouping and background jobs, a Postgres schema, ClickHouse-backed telemetry queries, and pluggable agent-runner interfaces with a default runner that records a local incident summary. The repository is licensed under Apache License 2.0; a hosted Superlog Cloud edition is also available with a free tier, pay-as-you-go plan, and monthly credit packs.

Grafana is an open-source observability and data visualization platform for querying, visualizing, alerting on, and understanding metrics, logs, and traces from multiple data sources. It provides client-side graphs and panel plugins, reusable dashboards with template variables, ad hoc metric queries and drilldowns, log search with preserved label filters, and alert rules that can send notifications to systems such as Slack, PagerDuty, VictorOps, and OpsGenie. Queries can combine different data sources in the same graph, including Prometheus, Loki, Elasticsearch, InfluxDB, PostgreSQL, and other custom data sources. The project is distributed under AGPL-3.0-only, with Apache-2.0 exceptions documented in its licensing files.