Looking to replace PagerDuty with something free and open-source? These 3 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.



Click a column to sort — the best one depends on what matters to you.
| Alternative | Stars | Language | License | Last commit | In one line |
|---|---|---|---|---|---|
| Grafana OnCall | — | — | AGPL-3.0 | — | On-call schedules, escalations and alert routing. |
| Keep | — | — | MIT | — | Open-source alert management and AIOps workflows. |
| GoAlert | — | — | Apache-2.0 | — | On-call scheduling and notifications, built by Target. |
On-call schedules, escalations and alert routing. Its AGPL-3.0 license keeps the project and its forks open-source forever, and commercial use is allowed. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Open-source alert management and AIOps workflows. Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
On-call scheduling and notifications, built by Target. Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
The top open-source alternative is Grafana OnCall — On-call schedules, escalations and alert routing. The full ranked list is above.
Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.
Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.
Browse open-source replacements for dozens of popular tools — design, productivity, dev, analytics and more.
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