Checkly alternatives: 5 open-source picks
Checkly costs $24/mo — $288 a year. These 5 alternatives replace it for $0, led by OpenStatus, OneUptime and Uptime Kuma. All 5 are open source. License, stars and last commit checked by hand on 2026-08-29. No trials, no crippled tiers.
Open-source synthetic monitoring and status pages with monitoring-as-code from global regions
licenseAGPL-3.0
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
Scheduled Playwright and API checks, plus an incident system you did not ask for.
Self-hosted uptime monitor with status pages, 90+ notification channels, and a slick dashboard
licenseMIT
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
The de-facto open dashboarding platform — visualize metrics, logs, and traces from any source.
licenseAGPL-3.0
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
Dead-simple cron job monitoring — get pinged when your scheduled tasks silently stop running.
licenseBSD-3-Clause
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
What each one is, in full: OpenStatus · Uptime Kuma · Grafana · Healthchecks
last updated 2026-08-29 · no votes, no pay-to-list · just what's real
the usual suspects · recommended everywhere, rejected here
Uptime KumaNo Playwright or scripted browser transactions; it checks endpoints, not journeys.
how to choose a Checkly alternative
Easiest to get running
Uptime Kuma — a one-click install, no server to maintain.
Most proven
Uptime Kuma, with 68,000 GitHub stars — the largest community of the 5, which usually means more answers when something breaks.
Needs real ops to self-host
OneUptime is capable but expects someone to run a server, updates and backups. Budget for that before choosing it.
what you give up by leaving Checkly
- global browser fleet, Playwright operations, alerting, CI integration, and support
- global probe network
- phone and SMS delivery
- massive retention
- advanced incident response and support
None of the picks above covers all of it. The full verdict says which gaps matter.
Checkly alternatives at a glance
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| OpenStatus | AGPL-3.0 | docker to self-host | self-hosted, web | 9,000 | 2026-08 |
| OneUptime | open source | self-host, real ops | web, self-hosted | 7,400 | 2026-08 |
| Uptime Kuma | MIT | one-click install | self-hosted, web | 68,000 | 2026-08 |
| Grafana | AGPL-3.0 | docker to self-host | self-hosted, web | 65,000 | 2026-08 |
| Healthchecks | BSD-3-Clause | one-click install | self-hosted, web | 8,000 | 2026-08 |
why people still pay for Checkly
People still pay for Checkly because monitoring must continue working during the exact outage it reports, which makes independent infrastructure and alert delivery the real product. The recurring cost buys probe geography, clocks, retries, deduplication, sampling, storage, paging, notification delivery, on-call rules, and its own uptime, not just the visible interface. If none of that applies to you, any pick above saves $288 a year.
questions about switching from Checkly
Is there an open-source alternative to Checkly?
Yes: OpenStatus, OneUptime, Uptime Kuma and 2 more. Every tool on this page is open source: no trials, no crippled tiers.
Can open source really replace Checkly?
Our verdict is YES. Uptime Kuma (68k stars), Grafana (65k stars), OpenStatus (9k stars) are mature open-source replacements for Checkly — self-host in one command and stop paying $24/mo. The full verdict, and what you give up by switching, is at caniopensourceit.online/checkly.
What is the easiest open-source Checkly alternative to set up?
Uptime Kuma — a one-click install, no server to maintain.
What is the most popular open-source Checkly alternative?
By GitHub stars, Uptime Kuma (68,000). Grafana is next with 65,000.
