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Monitoring

Free and open-source PagerDuty alternatives

PagerDuty (On-call management and incident response platform) is a commercial product. These 2 tools do the same job and are free to use or to self-host.
Short answer: the best free alternatives to PagerDuty are Keep and OneUptime. Self-hosting is free; you pay only for the server (a small VPS is about $4–6/mo). Licenses and prices checked 2026-10-01.
  1. 1
    Keep

    Open source alerts management platform

    Alert management and AIOps; ee/ folder is source-available.

    Open source (MIT (core)) ·★ 12k GitHub stars · last commit 2026-09-28 · ▲ 4 upvotes on DevHunt · details

  2. 2
    OneUptime

    Open-source monitoring, status pages and on-call

    Monitoring, status pages, incidents and on-call in one platform.

    Open source (Apache-2.0 (core)) ·★ 7.7k GitHub stars · last commit 2026-10-07 · details

Want paid options too? See all PagerDuty alternatives or the full free alternatives list.

FAQ

Is there a free alternative to PagerDuty?+

Yes. Keep and OneUptime do the same job for free; Keep and OneUptime are open source.

What is the best open-source alternative to PagerDuty?+

Keep is the most starred on GitHub (12k stars). Alert management and AIOps; ee/ folder is source-available.

Open source: OSI-approved license. Free to self-host: the code is public and free to run yourself, with limits in the license.