Checkly vs Highlight.io
A detailed comparison to help you choose between Checkly and Highlight.io.
Quick Verdict
5.0/5
Checkly
100 reviews
4.4/5
Highlight.io
290 reviews
Checkly is rated higher (5.0 vs 4.4). Checkly enables monitoring as code using Playwright for E2E browser checks and HTTP API checks. Define checks alongside your code in TypeScript. Global check locations. Highlight.io provides session replay, error monitoring, and logging for web applications. Open source and self-hostable. Combines frontend session replay with backend error tracking.
Checkly Monitoring as code with Playwright and API checks | Highlight.io Session replay and error tracking for full-stack debugging | |
|---|---|---|
| Overview | ||
| Rating | 5.0 (100 reviews)✓ | 4.4 (290 reviews) |
| Pricing model | freemium | freemium |
| Starting price | Free tier available | Free tier available |
| Best for | Engineering teams who want to define synthetic monitoring tests as code in their repository | Full-stack development teams that need to correlate user behavior with backend errors to resolve production issues quickly. |
| Tags | ||
| Tags | free tieropen sourceapi access | free tieropen sourceself hostableapi access |
| Visit Checkly → | Visit Highlight.io → | |
Checkly
Pros
- + Monitoring as code in TypeScript
- + Playwright for browser monitoring
- + Works in CI/CD pipeline
Cons
- - Developer-focused — not for non-technical teams
- - Newer than Datadog synthetics
Highlight.io
Pros
- + Record complete user sessions with network activity and console logs
- + Search across sessions and errors with powerful filters
- + Detect anomalies and trends automatically
- + Self-host option available for compliance needs
Cons
- - Session replay storage costs grow with traffic volume
- - Setup requires code instrumentation for optimal visibility
Stay in the loop
Get weekly updates on the best new AI tools, deals, and comparisons.
No spam. Unsubscribe anytime.