← All website monitoring tools
Free Tier (39 options, 2026)
Tools with a free plan or always-free tier — perfect for solo projects, side businesses, or testing before committing to paid plans.
Most popular free uptime monitor — 50 free monitors at 5-min intervals.
Modern uptime + incidents + on-call platform with clean UX — popular with developer teams.
Long-running freemium uptime tool — uptime + SSL + domain expiry in one dashboard.
Zoho's full-stack monitoring suite — uptime + APM + synthetics + logs in one bundle.
New Relic's synthetic checks bundled with full observability stack — generous free tier.
Self-hosted open-source uptime monitor with status pages — Docker one-liner deploy.
Specialized in monitoring cron jobs and background workers — sends alert when heartbeat misses.
Cron-job heartbeat monitoring — open-source with hosted free tier and self-host option.
Modern status pages — fast, free for unlimited subscribers, paid plans for branding.
Industry standard status pages — owned by Atlassian, integrates with Jira/Opsgenie.
Freshworks' uptime monitor — generous always-free tier with 1-min intervals.
Website security platform — malware scan, WAF, hack cleanup. Free scanner, paid protection.
Free SSL/TLS configuration test by Qualys — industry standard for grading HTTPS setup.
SSL certificate expiry monitor — alerts before your cert dies.
SSL certificate inventory + expiry alerts — free up to 10 certs.
Google's open-source Lighthouse audits in CI — track Core Web Vitals on every deploy.
Synthetic monitoring with Playwright browser tests — developer-first, code-as-config.
Industry-standard on-call + incident response — pairs with any monitor as alert receiver.
Atlassian's PagerDuty alternative — on-call rotations and alert routing.
Synthetic monitor with Selenium-based browser checks + transaction monitoring.
Self-hosted uptime + status page combo — Go binary, sqlite/postgres, lightweight.
Developer-focused open-source health dashboard — YAML-driven, zero-cost self-host.
Open-source PHP status page — original Statuspage alternative, used by GitLab.
Uptime monitor that runs as GitHub Actions — entirely free, status page on GitHub Pages.
Free unlimited-subscriber status pages from Freshworks — paid plans for advanced branding.
Aggregates status pages of 3000+ third-party services — alerts when YOUR vendors go down.
Classic Unix process + service monitor — runs locally, restarts services if they die.
20-year-old infrastructure monitoring — Core is free, XI is paid enterprise.
Enterprise-grade open-source monitoring — free forever, paid support available.
CNCF metrics + alerting standard — Blackbox exporter does HTTP/TCP/ICMP probes.
Grafana Cloud's synthetic monitor — free tier integrated with full observability suite.
Time-series storage for metrics — old-school but reliable, paired with Grafana for dashboards.
Nagios-fork modernized — popular in European DevOps, Raw is free.
Modern Nagios fork — open source, plugin-compatible with Nagios checks.
Kubernetes-native alerting — open-source core, hosted UI for teams.
Heartbeat + Synthetics in Elastic Stack — free if self-hosted, paid Elastic Cloud.
Indie-built minimal uptime monitor — solo founder product, simple flat pricing.
Uptime + status pages bundle — clean modern UI, generous free tier.
Indie uptime monitor with focus on simplicity — solo dev, Laravel-built.
Tips for free tools
- Free tiers typically limit you to a few sites or basic features.
- Self-hosted free options give unlimited but require server admin.
- Watch for hidden caps on free tiers (data, regions, retention).