Open source. Open possibilities.

Highlight.io is an open-source full-stack monitoring platform providing session replay, error monitoring, logging, and distributed tracing, with SDKs for multiple languages and self-hosted deployment options.

Apache SkyWalking is an open-source APM system designed for microservices, cloud-native, and container-based architectures. It provides distributed tracing, multi-language agents, eBPF monitoring, native BanyanDB storage, log pipelines, alerting, and AI-powered anomaly detection.

Sentry is a developer-first debugging platform for error tracking and performance monitoring, with official SDKs for many languages and frameworks.

Argos is a Go instrumentation library that adds OpenTelemetry traces, metrics and correlated logging to microservices via one Init/Run call, plus drop-in wrappers per client library. The root module has no vendor SDK dependencies; each integration ships as its own module.

HyperDX is an open-source observability platform that unifies logs, metrics, traces, session replays, and errors using ClickHouse and OpenTelemetry for fast production issue resolution.

WordPress plugin client for ovos console error monitoring and cyberdefense. Reports PHP/JS errors, security events, and scanner probes to a self-hosted console instance. Features CVE matching, traffic rollups, and AI-driven analysis.

OpenObserve is an open-source observability platform that unifies logs, metrics, traces, RUM, session replay, pipelines, SLOs, and LLM observability, with SQL/PromQL queries, dashboards, alerts, and single-binary deployment.