replacing Datadog
Cloud monitoring and observability platform — Datadog pricing: $15-$34/host/month. Below: 4 free, self-hostable open source projects that cover the same ground, ranked by real GitHub adoption.
There are 4 open source Datadog alternatives tracked on this registry, against Datadog pricing of $15-$34/host/month. The most-adopted is Grafana with 77,638 GitHub stars under AGPL-3.0, written in TypeScript. Together the set has 123,843 stars across 2 languages and 1 licence. All 4 are free to self-host with no licence fee, and 4 of 4 received a commit in the last 90 days. 4 head-to-head Datadog comparisons are available.
The open source projects below are free to self-host. If you would rather pay for a managed service, these are the hosted products in the same space — listed with the vendor's own pricing.
Grafana is an open-source observability platform for visualizing metrics, logs, and traces across diverse data sources. It runs in the infrastructure and operations ecosystem, designed for teams needing unified visibility into system behavior without vendor lock-in. Built with TypeScript and Go, it provides a composable architecture that integrates with existing toolchains.
AGPL-3.0 · TypeScript · Datadog vs Grafana →
SigNoz is an open-source, OpenTelemetry-native observability platform for cloud-native applications. It unifies logs, metrics, traces, alerts, and dashboards into a single tool, replacing fragmented monitoring stacks with a correlated signal pipeline. It lives in the observability ecosystem alongside tools like Prometheus, Jaeger, and Grafana, and is positioned as an open alternative to Datadog.
NOASSERTION · TypeScript · Datadog vs SigNoz →
Highlight is an open-source, full-stack monitoring platform for modern web applications. It lives in the Infrastructure & Operations / Monitoring & Observability ecosystem, and its repository lists TypeScript, Golang, APM, metrics, tracing, and self-hosted as topics.
NOASSERTION · TypeScript · Datadog vs Highlight →
Unified observability for metrics, logs, traces, and more
Open-source observability platform for cloud-native apps
Real-time observability for modern web applications
Open source observability platform for modern applications
last updated nightly · ranking method: github stars, live-tracked
Grafana is the most-starred open source alternative to Datadog in this registry, with 77,638 GitHub stars. 4 alternatives are compared here in total.
Yes. Every project listed on this page is open source and free to self-host — there is no licence fee. Some projects also sell a managed hosted version, but the self-hosted path costs nothing.
Compare licence terms, community size (stars), primary language and release activity. A fast-moving project with a compatible licence and an active maintainer base matters more than raw star count when you are committing to a migration.