APM & Observability
APM & Observability tools -- a subcategory of Monitoring & Observability
Replace Popular SaaS
22 Tools
Netdata
78KReal-time infrastructure monitoring with per-second metrics, 800+ integrations, built-in ML anomaly detection, and AI troubleshooting — using just 5% CPU and 150MB RAM.
Signoz
26KSignoz is a self-hosted server monitoring tool that provides comprehensive monitoring and troubleshooting solution for microservices architectures.
Langfuse
23KLLM engineering platform for tracing, prompt management, evaluation, and analytics of AI applications.
Prefect
22KReleased under Apache-2.0, Prefect offers modern tools to build, monitor, and react to data workflows and reliably on self-hosted infrastructure.
Vector
21KHigh-performance observability data pipeline for collecting, transforming, and routing logs and metrics.
OpenObserve
18KFast, scalable and cost-effective open source observability platform
HyperDX
9.4KHyperDX is a self-hosted web analytics tool that provides observability platform unifying session replays.
Highlight
9.2KFor server monitoring, Highlight is a self-hosted solution that provides comprehensive monitoring solution offering error tracking.
OpenStatus
8.5KFor server monitoring, OpenStatus is a self-hosted solution that provides uptime monitoring platform for seamless service management.
Coroot
7.5KCoroot is a Go-based application that provides simplifies system monitoring by providing metrics.
OpenLLMetry
6.9KOpenLLMetry lets you run observability platform for LLMs using OpenTelemetry. Monitor performance entirely on your own server.
OneUptime
6.7KSelf-hosted server monitoring tool that provides all-in-one solution for uptime monitoring.
kener
4.8KKener gives you status page tool on your own infrastructure.
Flipt
4.7KFlipt is a self-hosted apm & observability tool with support for golang, observability, devops.
Uptrace
4.1KUptrace is a Go-based application that provides openTelemetry-based platform.
Logfire
4.1KLogfire is a self-hosted apm & observability tool with support for AI, openai, observability.
Agenta
3.9KAgenta handles lLMOps platform for prompt management as a self-hosted solution.
Laminar
2.7KFor web analytics, Laminar is a self-hosted solution that provides platform that helps collect, understand, and utilize data for building high-quality LLM...
Timeplus
2.2KTimeplus gives you lightweight, powerful, and cost-efficient stream processing platform for real-time analytics, on your own infrastructure.
Gigapipe
1.6KGigapipe is a self-hosted server monitoring tool with support for monitoring, SQL, clickhouse.
LLM Gateway
1KLLM Gateway is a self-hosted web analytics tool that provides route, manage, and analyze LLM requests across multiple providers.
Streamdal
616Released under Apache-2.0, Streamdal provides embed privacy controls in your code to detect and protect PII on self-hosted infrastructure.
Why Self-Host Your APM and Observability Stack?
DataDog, New Relic, and Splunk charge based on data ingestion volume — and observability data grows fast. A moderately complex application generating traces, metrics, and logs can easily cost $500-2000/month on commercial platforms. Self-hosted observability tools process the same telemetry data on your infrastructure with fixed costs, regardless of how many spans, metrics, or log lines you ingest.
SigNoz provides a full observability platform with traces, metrics, and logs in a single interface, built on OpenTelemetry and ClickHouse. Netdata delivers real-time system monitoring with per-second granularity and zero configuration on Linux hosts. HyperDX combines logs, traces, and session replays in one tool, while Highlight focuses on frontend observability with error tracking and session recording. OpenObserve handles high-volume log ingestion at a fraction of Elasticsearch’s resource requirements. For uptime monitoring, OpenStatus and Kener provide status pages and health checks.
The AI/ML observability niche is particularly expensive in the SaaS world. LangSmith charges per trace for LLM application monitoring, and costs scale directly with usage. Self-hosted alternatives like Langfuse, OpenLLMetry, and Laminar provide the same LLM tracing, prompt versioning, and evaluation capabilities without per-trace pricing. Agenta adds A/B testing for prompts. Uptrace provides distributed tracing compatible with OpenTelemetry, while Coroot offers automatic service map generation and anomaly detection — features that would require enterprise-tier subscriptions on commercial platforms.