# Frontend Monitoring. See What Your Users See.

> Monitor real user experience with comprehensive frontend tracking. Analyze Core Web Vitals, user journeys, and JavaScript errors. Start monitoring free.

Source: https://openobserve.ai/frontend-monitoring/

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Track performance, user interactions, and frontend errors from one SDK.

- [Start Free Cloud Trial](https://cloud.openobserve.ai/web/login/)
- [Talk to a Human](/demo/)

### RUM Next to Your Backend Data

See frontend errors and backend traces in the same platform, not a separate RUM tool.

### Click-by-Click Session Replay

Watch exactly what a user did before an error happened.

### Simple Implementation

Add one JavaScript snippet to your application’s entry point and start collecting real user experience data immediately.

## From a User’s Click to Your Backend’s Root Cause

### User Experience Monitoring

- **Performance Metrics** - Track vital web metrics that impact your users most, page load times, First Contentful Paint, Largest Contentful Paint, and Time to Interactive.
- **User Journey Analysis** - Reveal how real users navigate your application. Uncover common paths, optimize critical workflows, and eliminate friction points with session replay.

[Learn More](https://openobserve.ai/docs/user-guide/data-exploration/rum/overview/)

### Error Tracking

- **Error Capture** - Catch every frontend issue with complete stack traces, browser details, and the exact user actions that triggered them.
- **Impact Analysis** - Pinpoint which errors hurt users most. Spot patterns across browsers and devices, then prioritize fixes based on real business impact.

[Learn More](https://openobserve.ai/docs/user-guide/data-exploration/rum/overview/#3-error-tracking)

### Performance Analysis

- **Core Web Vitals** - Identify experience bottlenecks, track performance across user segments, and deliver pages that respond instantly to every interaction.
- **Resource Load Time** - Expose slow-loading assets and API calls that frustrate users. Pinpoint exactly which resources and backend dependencies are stealing milliseconds.

[Learn More](https://openobserve.ai/docs/user-guide/data-exploration/rum/overview/#1-performance-monitoring)

### Quick Implementation

- **Fast Setup** - Go from zero to monitoring in minutes. Collect real user data instantly and customize your configuration to meet your exact needs.
- **Flexible Integration** - Implement with any frontend framework. Capture custom events that reveal the true story behind user behavior and application performance.

[Learn More](https://openobserve.ai/docs/user-guide/data-exploration/rum/setup/)

## Measured against industry leaders

Same telemetry, same workloads, one platform. Every number is OpenObserve against a named vendor - not an industry average.

8x cost reduction means you can unify your observability into a single platform.

140x storage means longer retention doesn't necessarily mean expensive bills.

5x to 15x faster queries mean dashboards load in milliseconds, not minutes.

See how much you would save switching today.

- [See all comparisons](/comparison/)

## Teams trust OpenObserve with their frontend telemetry

## Frontend Monitoring FAQs

### Is there an open source tool for session replay and RUM?

Yes, OpenObserve is open source and includes real user monitoring with session replay, Core Web Vitals, and error tracking built in, not sold as a separate add-on. Add one JavaScript snippet to start collecting session data, self-hosted or in OpenObserve Cloud.

### How do I get started with Frontend Monitoring?

Add the JavaScript snippet to your application’s entry point and start collecting user experience data immediately, with configurable sampling rates.

### What performance metrics are available?

First Contentful Paint, Largest Contentful Paint, Time to Interactive, resource loading performance, API call latencies, and custom timing marks.

### How does error tracking work?

Automatic capture of JavaScript errors and exceptions with full stack traces, browser details, and the user actions leading to the error.

### Can I track custom events and metrics?

Yes, define specific user interactions or business events to monitor, with custom attributes and dimensions on any tracked event.

### How does sampling and data retention work?

Configurable sampling rates based on traffic patterns, with retention policies customizable per data type.

## Explore guides, videos, and articles

to help you get the most out of Frontend Monitoring.

### Performance Monitoring

[Learn more](https://openobserve.ai/docs/user-guide/data-exploration/rum/performance-monitoring/)

### Error Tracking

[Learn more](https://openobserve.ai/docs/user-guide/data-exploration/rum/error-tracking/)

### What is Real User Monitoring (RUM)?

[Learn more](https://openobserve.ai/blog/real-user-monitoring-and-frontend-performance/)

- [Explore All Blogs](/blog/)

## Ready to get started?

Try OpenObserve today for more efficient and performant observability.

- Get Started For Free
- [Schedule Demo](/demo/)