Developer ToolsSentry
Developer-first error tracking and application performance monitoring for production software
Developer Tools
Developer ToolsAxiom
Agent-native observability for logs, metrics, traces, and events — at 20× lower cost
Developer ToolsBeszel
Lightweight, self-hosted server monitoring with Docker stats, history, and alerts
Hosting & InfrastructureUptime Kuma
A fancy self-hosted monitoring tool with 86k GitHub stars, 13 monitor types and 90+ alert integrations.
Hosting & InfrastructureBetter Stack
AI-native observability and incident management — one bill for logs, metrics, uptime, and on-call, 30x cheaper than Datadog
AI ToolsPydantic Logfire
AI observability built on OpenTelemetry — query traces, spans and LLM calls with SQL.
Hosting & InfrastructureSigNoz
Open-source, OpenTelemetry-native APM and observability — a self-hostable alternative to Datadog and New Relic.