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A Healthchecks.io alternative? Only if you need more than heartbeats

Updated 26 August 2026 · by Cassian Wei · 4 min read

Most "alternative" guides exist to talk you out of the incumbent. This one starts differently: Healthchecks.io is one of the best free tools in monitoring — a focused product, an honest FAQ, years of transparent operation, and a genuinely generous free tier. If pure cron-job monitoring within their limits fits your needs, use them and stop reading. The real reason people end up searching for an alternative isn't price. It's scope.

What their free plan actually is

From their own pricing page, August 2026: the Hobbyist plan is $0 for 20 monitored jobs with 100 log entries per job. The $5 "Supporter" plan has the same limits — it exists purely so happy users can pay them something, which tells you a lot about the shop. Business is $20/month (or $16/month billed annually) for 100 jobs, 1,000 log entries per job, 50 SMS & WhatsApp credits and 20 phone-call credits; Business Plus is $80/month for 1,000 jobs. They give the Business plan away free to open-source projects and nonprofits. One caveat worth knowing: using multiple free accounts to get around the 20-check limit is explicitly considered abuse in their FAQ.

The boundary: heartbeats are all it does — on purpose

Healthchecks.io is a pure dead-man's switch: your jobs ping it, and silence triggers an alert. That focus is why it's so good. But it also means the product is passive by design — it never probes anything from the outside. So it cannot tell you:

  • that your website or API is down — an active HTTP check from outside your infrastructure is a different pattern entirely;
  • that a TLS certificate expires this week, or a domain registration does;
  • that a port stopped accepting connections, or a DNS record changed;
  • that your service is up but slow, degrading before it fails.

None of this is a flaw — it's the product working as specified. The common outcome, though, is running Healthchecks.io plus a second service for uptime checks, each with its own account, alert channels, status story and free-tier rules. Two more practical pinches on the free plan: 100 log entries per job covers two years of a weekly job but only about 8 hours of an every-5-minutes job (their own FAQ makes exactly this calculation), and there are no public status pages — per-check and per-account badges only.

One tool for both directions

Watchpup's free tier covers the passive and the active side in one place: 15 monitors, any mix of kinds, every one at 60-second intervals. Heartbeat monitors take real 5-field cron expressions with IANA timezones (DST handled), a grace window, /start and /fail signals with measured run durations, a max_duration_s "succeeded but took too long" warning, and a unique ping email address per monitor for systems that can only send mail. The other twelve slots (or however you split them) can be HTTP checks with keyword/JSON/status-code assertions, TCP ports, DNS records, and daily TLS-expiry and domain-expiry checks. Alerts share one set of channels — email, signed webhooks, Slack, Discord, Teams, Google Chat, ntfy push, Telegram — with delivery retries, per-monitor routing, quiet hours and escalation delays; public status pages with visitor subscriptions are included. Everything works over API, CLI or MCP.

Where Healthchecks.io wins — honestly

  • The ping log. Their per-job log of received pings (with request bodies) is a real audit trail. We record events and incident details, not every ping — if you regularly read ping history to debug job behavior, that's a reason to stay.
  • 20 free checks vs our 15, and richer schedule formats — they accept systemd OnCalendar expressions; we speak standard 5-field cron only.
  • An enormous integrations list: PagerDuty, Opsgenie, Matrix, Mattermost, Pushover, Pushbullet, Gotify, Signal, GitHub Issues, Prometheus and many more — plus SMS, WhatsApp and phone calls on paid plans. We cover eight channels.
  • Open source. The whole product is BSD-licensed on GitHub and self-hostable. (Their own FAQ honestly notes self-hosting a monitoring service is not fire-and-forget — the same argument our Uptime Kuma guide makes.)
  • Track record: operating since 2015, with a public status page and a level of documentation honesty that this corner of the industry rarely manages — vs a product in beta whose receipts are a public changelog, a live demo and terms with written grandfathering and wind-down commitments.

Migrating: one call, schedules and tags intact

Because their API is clean, trying this side by side takes one request. Grab the read-only API key from Project Settings → API access, then:

curl -X POST https://watchpup.watchpup.workers.dev/api/import/healthchecks \
  -H 'authorization: Bearer wp_...' -H 'content-type: application/json' \
  -d '{"api_key":"YOUR-READ-ONLY-KEY"}'

Every check becomes a heartbeat monitor here: simple checks keep their period, cron checks keep their exact cron expression and timezone, tags carry over, and grace windows are preserved. Self-hosted instance? Add "base_url":"https://hc.example.com". The key is used for a single read and never stored; re-runs skip monitors you already imported. Checks we can't represent (OnCalendar schedules, periods over a day) are reported by name with a suggested rewrite rather than silently dropped. Ping URLs necessarily change — update your crontabs, or do it gradually: pinging both services from the same cron line costs one extra curl.

Or run both — genuinely fine

If Healthchecks.io already guards your cron jobs well, the lowest-risk move is additive: keep it, and put the outside-in checks — website, API, TLS, domains, ports — on a free account here. Each service can watch the other: a Watchpup HTTP check on your Healthchecks badge URL, and a Healthchecks heartbeat pinged by any job that talks to our API. Monitoring that monitors its monitor.

Pricing and feature claims checked against Healthchecks.io's own pricing, FAQ and docs pages, August 2026. Trademarks belong to their owners; no affiliation — just respect. Spot an error? Tell me — corrections ship same-day.

Watchpup is free uptime & cron monitoring — 1-minute checks, heartbeats, TLS/domain expiry, status pages, alerts everywhere. Sign up, try the live demo, or read more guides.