Best Open Source Alternatives to Datadog

Compare the best free and open-source alternatives to Datadog — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 4 alternatives

Datadog

Proprietary SaaS

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Platformsweb, linux, macos, windows

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Datadog alternatives compared

Open-source alternatives to Datadog, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Prometheus	65,402	Apache-2.0	LinuxDocker	Yes	Aug 2026	Visit
Portainer CE	38,109	zlib	LinuxmacOSWindowsDocker	Yes	Jul 2026	Visit
Dashy	26,079	MIT	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
Homer	11,523	Apache-2.0	LinuxmacOSWindowsDocker	Yes	Jul 2026	Visit