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 November 2026 · 17 alternatives
| Tool | License | Platforms | Self-hosted | |||
|---|---|---|---|---|---|---|
| 81,259 | GPL-3.0 | Web | No | Nov 2026 | Visit | |
| 66,907 | Apache-2.0 | LinuxDocker | Yes | Nov 2026 | Visit | |
| 32,560 | MIT | Web | No | Nov 2026 | Visit | |
| 14,972 | — | Web | No | Nov 2026 | Visit | |
| 9,244 | AGPL-3.0 | DockerLinux | Yes | Nov 2026 | Visit | |
| 7,785 | Apache-2.0 | DockerLinux | Yes | Nov 2026 | Visit | |
| 7,518 | Apache-2.0 | Web | No | Nov 2026 | Visit | |
| 5,236 | MIT | DockerLinux | Yes | Nov 2026 | Visit | |
| 4,531 | MIT | Web | No | Nov 2026 | Visit | |
| 2,632 | GPL-2.0 | Web | No | Nov 2026 | Visit |
An open-source monitoring system with a dimensional data model.
vs Datadog: a free, open-source option you fully control, licensed Apache-2.0.
Open-source vulnerability scanner using YAML templates to detect CVEs, misconfigurations, and protocol flaws across applications and infrastructure.
vs Datadog: a free, open-source option you fully control, licensed MIT.
OpenStatus is an open-source status page and synthetic uptime monitoring platform with multi-region checks, private probes, and monitoring as code.
vs Datadog: a free, open-source option you fully control, licensed AGPL-3.0.