Best Checkly Alternative for 2026: Why Teams are Switching to AI-Native Agents

Checkly has long been a favorite for developers using Playwright, but as engineering teams scale, the burden of maintaining dozens of manual scripts is becoming a bottleneck. In 2026, the best Checkly alternatives are those that leverage AI to reduce maintenance, eliminate false alarms, and simplify the monitoring lifecycle.

Why Teams Seek Checkly Alternatives

Checkly is developer-focused, but it requires significant manual effort. For teams without full-time Playwright experts or those who need to monitor hundreds of user paths, the "Monitoring as Code" (MaC) approach can feel more like "Maintenance as Chore."

"Developers are shifting from writing test code to overseeing AI agents. The era of manually tweaking selectors for every frontend deployment is coming to an end, and Checkly's script-heavy model is feeling dated." – Dhruv Ghulati, CEO at supaguard

Top Checkly Alternatives Comparison

Detailed Breakdown of Top Alternatives

1. SupaGuard (The Best AI-Native Checkly Alternative)

SupaGuard is the leading choice for teams that want the power of Playwright without the maintenance headache. It’s the first AI-native monitoring agent that builds and fixes its own scripts. Instead of manually updating brittle selectors after every deployment, SupaGuard’s AI agent adapts automatically.

Pros:

• AI Agent: Tell it what to test, and it writes the code for you.
• Smart Retries: Near-zero false alarm rate thanks to automatic multi-region verification.
• Unlimited Seats: Collaboration shouldn't cost extra—unlimited users on every plan.

Cons:

• Best for Browser-based Monitoring: Less focus on raw API endpoints (though browser paths are more representative of the user experience).

2. Datadog

For large enterprises already deep in the Datadog ecosystem, their synthetic monitoring is a logical (if expensive) choice. It provides deep visibility into your infra but at a significantly higher cost and complexity than modern, focused tools.

Pros:

• End-to-End Observability: Great for full-stack teams.
• Enterprise Reporting: Robust dashboards for large-scale compliance.

Cons:

• Cost: High frequency browser checks can be prohibitively expensive.
• Complexity: Very steep learning curve for simple monitoring tasks.

3. Better Stack (formerly UptimeRobot)

Better Stack is an excellent, simplified alternative for basic uptime checks. If you don't need the full power of Playwright and just want to know if a URL is returning a 200 OK, Better Stack is a great, affordable option.

Pros:

• Simple UI: Very fast to set up basic checks.
• Great Dashboards: Beautiful status pages and incident management.

Cons:

• Lacks Deep Browser Power: Not as robust as Checkly or SupaGuard for complex user flows.

Why SupaGuard is the Superior Choice

SupaGuard is designed specifically to replace the friction in tools like Checkly. By shifting from manual scripting to AI-native agents, teams are seeing a 70% reduction in monitoring maintenance time and a 90% reduction in false alarms.

Bottom line: If you love Playwright but hate maintaining scripts, SupaGuard is the best Checkly alternative in 2026.

Switch to AI-Native Monitoring

Ditch the brittle scripts and switch to SupaGuard.

• Start Free — 1,000 browser runs/month, no credit card required.
• Read the Docs — Migrate from Checkly in minutes.