Checkly Alternatives for Synthetic Monitoring (2026)

What Checkly Does Well

Checkly has earned its reputation as the best developer-first synthetic monitoring tool available. If your team writes end-to-end tests with Playwright and wants to reuse those tests as production monitoring checks, Checkly is purpose-built for that workflow. Here is what it does well:

Monitoring-as-code. Checkly lets you define checks in JavaScript or TypeScript, store them in your repo, and deploy them from CI/CD pipelines. There is a CLI, a Terraform provider, and native integration with GitHub Actions. If your monitoring configuration lives alongside your application code, Checkly is the tool that actually makes that practical.

Playwright and Puppeteer browser checks. You can take the same Playwright tests your QA team writes and run them as scheduled monitoring checks against production. No rewriting tests in a proprietary format. No point-and-click recorder. Just code.

API monitoring with assertions. Checkly's API checks go beyond "did we get a 200?" You can assert on response body content, response time thresholds, headers, and JSON schema validation. Multi-step API checks let you chain requests together.

CI/CD integration. Run your monitoring checks as part of your deployment pipeline. If a check fails after deploy, you know immediately -- before users report it.

Developer-friendly pricing. Checkly starts at around $40/month for the Starter plan, which includes browser checks, API checks, and a reasonable number of check runs. The free tier gives you enough to evaluate the product seriously.

None of this is marketing fluff. Checkly genuinely does synthetic monitoring better than most tools in this space, and the developer experience is significantly ahead of legacy tools like Pingdom or Uptime.com.

Where Teams Look for Alternatives

So why would anyone leave a tool this good at what it does? Because synthetic monitoring is only one piece of the operational puzzle.

No incident management. When a Checkly check fails, you get an alert through Slack, PagerDuty, Opsgenie, email, or a webhook. That is where Checkly's job ends. There is no on-call scheduling, no escalation policies, no acknowledgment tracking, no incident timeline. You need PagerDuty or Opsgenie for that -- another $20-30/month per user, another vendor, another login.

No status pages. If you want to communicate downtime to customers, you need Atlassian Statuspage or a similar product. Checkly does not include any way to publish service status externally.

No dependency monitoring. Your app depends on Stripe, AWS, Twilio, Vercel, and a dozen other services. When one of them has an outage, Checkly will tell you your checks are failing -- but it will not tell you the problem is upstream. You are left digging through Twitter and vendor status pages manually.

Specialized for synthetic only. Checkly does not do basic uptime monitoring (ping, TCP, DNS). It does not monitor SSL certificates. It does not track server health or infrastructure metrics. If you want "is my site up?" checks alongside your Playwright tests, you need another tool for the simple stuff.

The developer-first approach has a tradeoff. Non-technical team members -- customer support leads, product managers, founders at smaller companies -- may find Checkly's code-centric model difficult to work with. Not every team wants to write JavaScript to set up a monitor.

The result is that many teams using Checkly end up with three or four tools stitched together: Checkly for synthetic monitoring, PagerDuty for incident management, Statuspage for external communication, and maybe UptimeRobot or Pingdom for basic uptime checks. That stack works, but it is expensive and fragmented.

5 Checkly Alternatives

1. Alert24 -- Incident Management, Status Pages, and Dependency Monitoring (No Synthetic)

Let us be upfront: Alert24 is not a synthetic monitoring tool. It does not run Playwright tests. It does not do monitoring-as-code. If you need a direct replacement for Checkly's core feature, Alert24 is not it.

What Alert24 does is cover the gaps that Checkly leaves open. It bundles uptime monitoring, incident management, and status pages into one platform -- the three things you would otherwise need separate tools for alongside Checkly.

Where it wins:

• Third-party dependency monitoring. Alert24 tracks 2,000+ third-party status pages -- AWS, Stripe, Cloudflare, GitHub, Vercel, SendGrid, and more -- and correlates their outages with yours. When your Checkly browser check starts failing because Stripe's API is down, Alert24 tells you the root cause is upstream. This alone can save hours of debugging per incident.
• Auto-updating status pages. When a monitor goes down, your public status page updates automatically. No manual toggle, no forgetting to update the page while you are firefighting an incident.
• Incident management with escalation. On-call schedules, escalation policies, acknowledgment tracking, and multi-channel alerting (email, SMS, voice calls). The basics that PagerDuty charges $20+/user/month for.
• Email-to-incident parsing. Forward alert emails from Checkly (or any other tool) into Alert24, and it creates structured incidents automatically. This is useful if you want to keep Checkly for synthetic monitoring but centralize incident response in one place.
• Free tier available. Start without a credit card.

Where it falls short:

• No synthetic monitoring, no Playwright/Puppeteer tests, no monitoring-as-code. This is a fundamental difference from Checkly, not a minor gap. If synthetic monitoring is your primary need, Alert24 does not replace Checkly.
• Fewer check locations than some alternatives. Compare specific regions if geographic coverage matters to your use case.
• Newer platform with 100+ pre-built webhook integrations (Datadog, Grafana, Prometheus, PagerDuty, Jira, and more), but the ecosystem is not as deep as Datadog or Better Stack. No Terraform provider yet.
• As a younger product, Alert24 does not have the long operational track record of established platforms.

The honest positioning: Alert24 is not a Checkly replacement. It is a Checkly complement -- or a replacement for the two or three other tools you are using alongside Checkly. If you are paying for Checkly plus PagerDuty plus Statuspage, replacing the latter two with Alert24 simplifies your stack and likely saves money. If you only need synthetic monitoring, Alert24 is not the right tool.

2. Datadog Synthetics -- Enterprise-Grade Synthetic Monitoring

If you are already a Datadog customer, their synthetic monitoring module is the most powerful option on this list. It goes deeper than Checkly on observability integration, though the pricing reflects that.

Where it wins:

• Multi-step API tests and browser tests with full Datadog APM correlation. When a synthetic check fails, you can trace the failure through your application stack to a specific service, query, or deployment.
• Private testing locations for monitoring internal services behind your firewall.
• Continuous testing integrated into CI/CD pipelines, similar to Checkly's approach.
• Bundled with Datadog's broader observability platform -- metrics, logs, APM, and infrastructure monitoring in one tool.

Where it falls short:

• Pricing is per-test-run and famously complex. A basic HTTP test running every minute from 5 locations costs roughly $7/month. Fifty endpoints quickly reaches $350/month or more, before you add browser tests. Budget surprises are common with Datadog.
• Overkill if you just want synthetic monitoring. You are buying into an enterprise observability platform.
• No included status pages. You still need a separate tool for external communication.
• The learning curve is steep. Datadog has hundreds of features, and configuring synthetic tests is just one small corner of the platform.

Cost comparison with Checkly: Datadog Synthetics is significantly more expensive for comparable test coverage. Checkly's ~$40/month Starter plan covers what might cost $200+ on Datadog. The tradeoff is that Datadog gives you deeper observability integration if you are already using their APM and infrastructure monitoring.

3. Better Stack -- Modern Monitoring with Incident Management

Better Stack bundles monitoring, incident management, on-call scheduling, and log management into one platform. It covers more operational ground than Checkly while still offering solid synthetic monitoring capabilities.

Where it wins:

• Monitoring plus incident management plus status pages in one tool. Better Stack handles the full workflow from detection to response to communication.
• Integrated log management. If you want monitoring and logging in the same platform, Better Stack is the strongest option here.
• 30-second check intervals on all plans.
• Full on-call scheduling with rotation support and escalation chains.
• Beautiful status pages with deep incident integration.

Where it falls short:

• Pricing starts at $24/month for 10 monitors. Not cheap for small teams.
• Browser checks exist but are not as developer-friendly as Checkly's Playwright-based approach. No monitoring-as-code, no Terraform provider.
• No third-party dependency monitoring. You will not get automatic correlation between your outages and upstream provider issues.
• The logging features add complexity if all you need is monitoring.

How it compares to Checkly: Better Stack trades Checkly's developer-first synthetic monitoring depth for a broader feature set that includes incident management and status pages. If you want one tool instead of three, Better Stack is a strong option. If you want the best possible synthetic monitoring developer experience, Checkly still wins.

4. Pingdom -- Established Synthetic Monitoring with RUM

Pingdom has been around for over 15 years and offers a mix of uptime monitoring, synthetic transaction checks, and real user monitoring (RUM). It is a more traditional alternative to Checkly's developer-first approach.

Where it wins:

• Real user monitoring (RUM) that measures actual page load performance from real browsers. Checkly does synthetic checks; Pingdom does both synthetic and real-user measurement.
• Large global probe network with extensive geographic coverage.
• Multi-step transaction checks for simulating user flows like login, search, and checkout.
• Backed by SolarWinds' enterprise support organization. Long track record.

Where it falls short:

• Per-monitor pricing starts at $15/month for 10 monitors. Scales to $85/month or more for 50 endpoints.
• No monitoring-as-code. No CLI. No Terraform provider. No CI/CD integration. If you are coming from Checkly, Pingdom's configuration workflow will feel like a step backward.
• No incident management or on-call scheduling. Same gap as Checkly.
• No status pages. Another separate tool needed.
• The UI feels dated compared to Checkly, Better Stack, and most modern alternatives.

How it compares to Checkly: Pingdom offers RUM, which Checkly does not have, and a larger probe network. Checkly offers a far better developer experience, monitoring-as-code, and CI/CD integration. Neither includes incident management or status pages. If you value RUM data and do not need monitoring-as-code, Pingdom is worth considering. If developer workflow matters, Checkly is the better synthetic monitoring tool.

5. Grafana Cloud -- Open-Source Ecosystem with Synthetic Monitoring

Grafana Cloud includes a synthetic monitoring module built on the open-source Grafana stack. If your team already uses Grafana for dashboards or Prometheus for metrics, adding synthetic monitoring through Grafana Cloud keeps everything in one ecosystem.

Where it wins:

• Synthetic monitoring with HTTP, multi-step, DNS, TCP, and traceroute checks from a global probe network.
• Scriptable browser checks using k6, Grafana's open-source load testing tool. If your team uses k6, you can reuse scripts for monitoring.
• Deep integration with Grafana dashboards, Prometheus/Mimir metrics, and Loki logs. Correlate synthetic check results with infrastructure metrics and application logs in one view.
• Generous free tier: 10,000 synthetic check executions per month at no cost.
• Open-source foundations. No vendor lock-in on the visualization and alerting layer.

Where it falls short:

• The synthetic monitoring is capable but not as polished or developer-friendly as Checkly's Playwright-based approach.
• Grafana Cloud's incident management (Grafana OnCall) and status page features exist but are newer and less mature than dedicated tools.
• The learning curve is significant if you are not already in the Grafana ecosystem. Setting up dashboards, alert rules, and contact points takes more effort than Checkly's straightforward setup.
• Pricing can be complex. The free tier is generous, but costs scale with metrics volume, log ingestion, and synthetic check runs across multiple dimensions.

How it compares to Checkly: Grafana Cloud offers broader observability (metrics, logs, traces, synthetics) while Checkly offers a more focused and polished synthetic monitoring experience. If you are already invested in the Grafana ecosystem, Grafana Cloud synthetic monitoring is a natural addition. If you want purpose-built synthetic monitoring with the best developer experience, Checkly is more streamlined.

Comparison Table

Prices are approximate and based on publicly available pricing pages as of March 2026. Check each vendor's site for current rates.

Checkly vs Alert24: Head-to-Head

Since this is the Alert24 blog, here is a direct comparison.

Where Checkly wins:

• Synthetic monitoring. Playwright-based browser checks, multi-step API monitoring, monitoring-as-code, CI/CD integration. Checkly is purpose-built for this and does it better than anyone on this list. Alert24 does not offer synthetic monitoring at all.
• Developer experience. CLI, Terraform provider, JavaScript/TypeScript check definitions, GitHub integration. If your team manages infrastructure as code, Checkly fits that workflow.
• CI/CD testing. Running monitoring checks as part of your deployment pipeline is a genuinely useful pattern that only Checkly and Datadog support well.

Where Alert24 wins:

• Incident management. On-call schedules, escalation policies, acknowledgment tracking, multi-channel alerting (email, SMS, voice calls). Checkly has no incident management at all.
• Status pages. Auto-updating public status pages that reflect monitor status automatically. Checkly offers nothing here.
• Third-party dependency monitoring. Alert24 tracks 2,000+ services and correlates their outages with yours. When Checkly tells you a check is failing, Alert24 can tell you why -- because the upstream provider is down.
• Email-to-incident parsing. Centralize alerts from Checkly and other tools into one incident management workflow.

Where Alert24 falls short:

• No synthetic monitoring. No Playwright tests. No monitoring-as-code. No CI/CD integration. This is not a minor gap -- it is the core of what Checkly does.
• Fewer integrations and a newer ecosystem compared to more established platforms.
• Smaller check location network.

The honest take: These tools solve different problems. Checkly is the best synthetic monitoring tool for developer teams. Alert24 is an all-in-one platform for uptime monitoring, incident management, and status pages. Most teams that use Checkly seriously also need incident management and status pages -- and that is where Alert24 fits alongside Checkly rather than replacing it. If you are paying for Checkly ($40/month) plus PagerDuty ($20+/user/month) plus Statuspage ($29+/month), replacing the latter two with Alert24 is worth evaluating.

The Bottom Line

Checkly is excellent at what it does. If you need Playwright-based synthetic monitoring with a developer-first workflow, CI/CD integration, and monitoring-as-code, Checkly is the best tool for that job. There is no reason to switch away from it for those capabilities.

The reason teams look for alternatives is not that Checkly's synthetic monitoring is lacking -- it is that synthetic monitoring alone does not cover the full operational workflow. You still need incident management, status pages, and dependency visibility. Checkly knows this, which is why it integrates with PagerDuty, Opsgenie, and other tools. But integrating with three separate platforms means three separate bills, three separate logins, and three separate configurations to maintain.

Here is the practical advice:

• If you want the best synthetic monitoring and nothing else: Stay with Checkly. It is purpose-built for this.
• If you want synthetic monitoring plus full observability: Datadog Synthetics or Grafana Cloud, depending on your budget and existing stack.
• If you want one tool for monitoring, incidents, and status pages: Better Stack or Alert24, depending on whether you need logging (Better Stack) or dependency monitoring (Alert24).
• If you want to keep Checkly but simplify the rest of your stack: Pair Checkly with Alert24. Use Checkly for synthetic monitoring and Alert24 for incident management, status pages, and dependency tracking. Forward Checkly alerts into Alert24 via email-to-incident or webhooks.
• If you want synthetic monitoring with RUM: Pingdom, despite its age, still offers real user monitoring that Checkly does not.

The smartest move for most teams is not replacing Checkly entirely -- it is replacing the two or three other tools you run alongside it. Synthetic monitoring is one piece of the puzzle. Incident response and customer communication are the rest. Pick the combination that covers your full workflow without unnecessary complexity.