10 Best Free Website Uptime Monitoring Tools in 2026
Compare the 10 best free website uptime monitoring tools in 2026. Side-by-side features, check intervals, alert options, and pricing — find the right tool for your needs.
Website downtime costs businesses thousands of dollars per hour, but catching it early doesn’t have to cost anything. A solid free monitoring tool can alert you within minutes of an outage, track response times, and give you historical uptime data — all without opening your wallet.
The catch? Free tiers vary wildly. Some give you 50 monitors with 5-minute checks. Others limit you to a single site with 30-minute intervals. The right choice depends on how many sites you manage, how fast you need alerts, and what additional features matter to your workflow.
Here are the 10 best free uptime monitoring tools available in 2026, compared honestly.
1. UptimeRobot
UptimeRobot is the most widely recognized free monitoring tool, and for good reason — its free tier is genuinely generous.
Free tier includes: 50 monitors, 5-minute check intervals, email and webhook alerts, 2-month log history, and a public status page.
Best for: Individuals and small teams who need basic uptime monitoring across many sites without paying anything.
Limitations: The free plan doesn’t include advanced alert channels (SMS, Slack, Teams), response time monitoring, or SSL certificate checks. Check intervals are capped at 5 minutes — paid plans go down to 30 seconds.
Verdict: The gold standard for free monitoring. If you need simple HTTP checks across many sites, UptimeRobot’s free plan is hard to beat on monitor count alone.
2. OpsKitty
OpsKitty combines uptime monitoring with something no other tool on this list offers: 33 free SEO and web performance tools built into the platform.
Free tier includes: 1 website monitor, 30-minute check intervals, monitoring from 29 global regions, email alerts, and full access to all 33 free tools (Open Graph Checker, HTTP Status Checker, Core Web Vitals Checker, Schema Validator, and more).
Best for: Website owners and marketers who want monitoring plus SEO tooling in one platform. If you’re already checking your Open Graph tags, validating schema markup, or testing page speed, having monitoring in the same dashboard makes sense.
Limitations: The free tier is limited to 1 site with 30-minute intervals. You’ll need a paid plan ($9/mo Starter) for more sites and faster checks.
Verdict: The strongest value proposition if you care about both uptime and SEO. The free tools alone are worth signing up for — the monitoring is a bonus on the free tier and becomes powerful on paid plans with Lighthouse-based performance tracking and multi-region checks.
3. Better Stack (formerly Better Uptime)
Better Stack has evolved into a full observability platform covering uptime monitoring, logging, and incident management.
Free tier includes: 10 monitors, 3-minute check intervals, email and webhook alerts, incident management, and a status page.
Best for: Development teams who want monitoring integrated with logging and incident workflows from day one.
Limitations: The free plan caps at 10 monitors and doesn’t include phone call alerts or on-call scheduling. Their paid plans start at $29/mo for teams.
Verdict: Excellent if you plan to grow into a full observability stack. The 3-minute check interval on the free tier is better than most competitors.
4. StatusCake
StatusCake has been around since 2012 and offers a straightforward monitoring service with a decent free tier.
Free tier includes: 10 uptime monitors, 5-minute check intervals, email alerts, and basic page speed monitoring.
Best for: Users who want simple, no-frills monitoring with a established provider.
Limitations: Free plan lacks SSL monitoring, domain monitoring, and advanced alerting. Check locations are limited compared to paid plans.
Verdict: A reliable, mature option. Not the most feature-rich free tier, but it’s stable and gets the job done for small setups.
5. Uptime Kuma
Uptime Kuma stands apart as a self-hosted, open-source monitoring tool. You run it on your own server — which means the free tier is the only tier.
Free (self-hosted) includes: Unlimited monitors, configurable check intervals (down to 20 seconds), 90+ notification types (Slack, Discord, Telegram, email, SMS, and more), TCP/HTTP/DNS/Docker monitoring, and status pages.
Best for: Developers and sysadmins comfortable with self-hosting who want maximum flexibility and zero ongoing costs.
Limitations: You need your own server to run it (a $5/mo VPS works fine). Setup requires basic Docker or Node.js knowledge. You’re responsible for keeping the monitoring server itself running — if it goes down, so does your monitoring.
Verdict: The most powerful free option if you’re willing to self-host. Unlimited everything, but the trade-off is operational overhead.
6. Hetrix Tools
Hetrix Tools offers uptime monitoring alongside blacklist monitoring — useful if you run email servers or worry about IP reputation.
Free tier includes: 15 uptime monitors, 1-minute check intervals, email and webhook alerts, and 15 blacklist monitors.
Best for: Users who need both uptime monitoring and IP/domain blacklist monitoring in one tool.
Limitations: The free plan has limited alert contacts and no SMS alerts. The interface feels dated compared to newer competitors.
Verdict: The 1-minute check interval on the free tier is the fastest on this list (excluding self-hosted). Great choice if blacklist monitoring matters to you.
7. Freshping (by Freshworks)
Freshping is the monitoring component of the Freshworks suite, designed to be simple and accessible.
Free tier includes: 50 monitors (URL checks), 1-minute check intervals, multi-location checks, Slack and email alerts, and a public status page.
Best for: Teams already in the Freshworks ecosystem (Freshdesk, Freshservice) who want integrated monitoring.
Limitations: Limited to URL checks only — no port, DNS, or keyword monitoring. The product receives less active development compared to Freshworks’ core products.
Verdict: Generous free limits (50 monitors at 1-minute intervals), but the feature set is narrow compared to more focused monitoring tools.
8. Oh Dear
Oh Dear takes a different approach — it’s a premium tool with a comprehensive feature set and no free tier, but its 10-day free trial is worth mentioning because of what it includes.
Trial includes: Full access to all features — uptime monitoring, broken link checking, mixed content detection, certificate health, scheduled tasks monitoring, and application health checks.
Paid plans start at: $12/mo for 5 sites.
Best for: Professionals who want a polished, all-in-one monitoring tool and don’t mind paying for quality. The trial helps you evaluate before committing.
Limitations: No permanent free plan. After the trial, you need to subscribe.
Verdict: Not free long-term, but included here because many monitoring evaluations start with a trial. Oh Dear’s breadth of checks (broken links, mixed content, certificate health) is exceptional.
9. Pulsetic
Pulsetic focuses heavily on beautiful public status pages alongside uptime monitoring.
Free tier includes: 5 monitors, 3-minute check intervals, email alerts, and a customizable status page.
Best for: Startups and SaaS companies that want a polished public status page as their primary monitoring output.
Limitations: Only 5 monitors on the free plan. Advanced features like SMS alerts and custom domains for status pages require paid plans starting at $9/mo.
Verdict: If a beautiful status page is your top priority, Pulsetic is the best-looking option. The monitoring itself is capable but not the widest feature set.
10. Cronitor
Cronitor started as a cron job monitoring tool and expanded into full uptime monitoring.
Free tier includes: 5 monitors, HTTP and heartbeat monitoring, email alerts, and a status page.
Best for: Developers who also need cron job and background task monitoring alongside website uptime checks.
Limitations: Only 5 monitors on the free plan. The tool is more developer-oriented — less accessible for non-technical users.
Verdict: A strong choice if you have both websites and background jobs to monitor. The combined monitoring approach saves you from using separate tools.
Comparison Table
| Tool | Free Monitors | Check Interval | Alert Channels | Status Page | Unique Feature |
|---|---|---|---|---|---|
| UptimeRobot | 50 | 5 min | Email, webhook | Yes | Most monitors on free tier |
| OpsKitty | 1 | 30 min | Yes | 33 free SEO tools included | |
| Better Stack | 10 | 3 min | Email, webhook | Yes | Integrated logging platform |
| StatusCake | 10 | 5 min | No | Page speed monitoring | |
| Uptime Kuma | Unlimited | 20 sec | 90+ types | Yes | Self-hosted, open source |
| Hetrix Tools | 15 | 1 min | Email, webhook | No | Blacklist monitoring |
| Freshping | 50 | 1 min | Email, Slack | Yes | Freshworks integration |
| Oh Dear | Trial only | 1 min | Email, Slack, webhook | Yes | Broken link + mixed content checks |
| Pulsetic | 5 | 3 min | Yes | Beautiful status pages | |
| Cronitor | 5 | Varies | Yes | Cron job monitoring |
How to Choose
If you monitor many sites on zero budget: UptimeRobot (50 monitors) or Freshping (50 monitors at 1-min intervals).
If you want monitoring + SEO tools: OpsKitty — the 33 free tools add value beyond any other monitoring platform.
If you’re a developer who loves control: Uptime Kuma — unlimited everything, self-hosted.
If you need the fastest free checks: Hetrix Tools (1-min) or Freshping (1-min).
If status page design matters: Pulsetic for the best-looking free status page.
If you want a full observability stack: Better Stack — monitoring, logging, and incidents in one platform.
The good news: most of these tools can be set up in under 5 minutes, and switching between them is painless since they all work by checking URLs externally. Start with one, evaluate for a week, and upgrade or switch based on what you actually need.
Try OpsKitty’s free plan — monitor your website and access 33 free SEO tools including Open Graph Checker, Core Web Vitals Checker, and Schema Validator. No credit card required.