---
title: "React"
description: "Learn how to set up Sentry in your React application, capture your first errors and traces, and view them in Sentry."
url: https://docs.sentry.io/platforms/javascript/guides/react/
---

# React | Sentry for React

## [Prerequisites](https://docs.sentry.io/platforms/javascript/guides/react.md#prerequisites)

You need:

* A Sentry [account](https://sentry.io/signup/) and [project](https://docs.sentry.io/product/projects.md)
* Your application up and running

##### Using React Server Components or a React framework?

If you're using Next.js, Remix, or another framework with server-side rendering, use the dedicated SDK instead:

* [Next.js](https://docs.sentry.io/platforms/javascript/guides/nextjs.md)
* [Remix](https://docs.sentry.io/platforms/javascript/guides/remix.md)
* [Gatsby](https://docs.sentry.io/platforms/javascript/guides/gatsby.md)

This guide is for client-side React applications (SPAs) built with tools like Vite or custom bundler configurations.

## [Install](https://docs.sentry.io/platforms/javascript/guides/react.md#install)

Install the Sentry SDK using your preferred package manager:

```bash
npm install @sentry/react --save
```

*Other available variations of the above snippet: yarn, pnpm*

## [Configure](https://docs.sentry.io/platforms/javascript/guides/react.md#configure)

Choose the features you want to configure:

Error Monitoring\[ ]Tracing\[ ]Session Replay\[ ]User Feedback

Want to learn more about these features?

* [**Issues**](https://docs.sentry.io/product/issues.md) (always enabled): Sentry's core error monitoring product that automatically reports errors, uncaught exceptions, and unhandled rejections. If you have something that looks like an exception, Sentry can capture it.
* [**Tracing**](https://docs.sentry.io/product/tracing.md): Track software performance while seeing the impact of errors across multiple systems. For example, distributed tracing allows you to follow a request from the frontend to the backend and back.
* [**Session Replay**](https://docs.sentry.io/product/session-replay/web.md): Get to the root cause of an issue faster by viewing a video-like reproduction of what was happening in the user's browser before, during, and after the problem.
* [**Logs**](https://docs.sentry.io/product/logs.md): Centralize and analyze your application logs to correlate them with errors and performance issues. Search, filter, and visualize log data to understand what's happening in your applications.
* [**User Feedback**](https://docs.sentry.io/product/user-feedback.md): Collect feedback directly from users when they encounter errors, allowing them to describe what happened and provide context that helps you understand and resolve issues faster.

### [Initialize the Sentry SDK](https://docs.sentry.io/platforms/javascript/guides/react.md#initialize-the-sentry-sdk)

Create a file in your project's root directory (e.g., `instrument.js`) and add your Sentry configuration.

This file must be imported **before** any other imports in your application entry point.

```javascript
import * as Sentry from "@sentry/react";

Sentry.init({
  dsn: "https://<key>@o<orgId>.ingest.sentry.io/<projectId>",

  integrations: [
    // ___PRODUCT_OPTION_START___ performance
    // If you're using react router, use the integration for your react router version instead.
    // Learn more at
    // https://docs.sentry.io/platforms/javascript/guides/react/configuration/integrations/react-router/
    Sentry.browserTracingIntegration(),
    // ___PRODUCT_OPTION_END___ performance
    // ___PRODUCT_OPTION_START___ session-replay
    Sentry.replayIntegration(),
    // ___PRODUCT_OPTION_END___ session-replay
    // ___PRODUCT_OPTION_START___ user-feedback
    Sentry.feedbackIntegration({
      // Additional SDK configuration goes in here, for example:
      colorScheme: "system",
    }),
    // ___PRODUCT_OPTION_END___ user-feedback
  ],
  // ___PRODUCT_OPTION_START___ performance

  // Set tracesSampleRate to 1.0 to capture 100%
  // of transactions for tracing.
  // Learn more at
  // https://docs.sentry.io/platforms/javascript/configuration/options/#traces-sample-rate
  tracesSampleRate: 1.0,

  // Set `tracePropagationTargets` to control for which URLs trace propagation should be enabled
  tracePropagationTargets: [/^\//, /^https:\/\/yourserver\.io\/api/],
  // ___PRODUCT_OPTION_END___ performance
  // ___PRODUCT_OPTION_START___ session-replay

  // Capture Replay for 10% of all sessions,
  // plus for 100% of sessions with an error
  // Learn more at
  // https://docs.sentry.io/platforms/javascript/session-replay/configuration/#general-integration-configuration
  replaysSessionSampleRate: 0.1,
  replaysOnErrorSampleRate: 1.0,
  // ___PRODUCT_OPTION_END___ session-replay
});
```

### [Apply Instrumentation to Your App](https://docs.sentry.io/platforms/javascript/guides/react.md#apply-instrumentation-to-your-app)

Import your Sentry configuration as the **first import** in your application entry point, then render your app.

```javascript
// Sentry initialization should be imported first!
import "./instrument";
import App from "./App";
import { createRoot } from "react-dom/client";

const container = document.getElementById("app");
const root = createRoot(container);
root.render(<App />);
```

### [Capture React Errors (React 19+)](https://docs.sentry.io/platforms/javascript/guides/react.md#capture-react-errors-react-19)

React 19 introduced error hooks that integrate directly with Sentry. Configure `createRoot` or `hydrateRoot` with error handlers using `reactErrorHandler` for comprehensive error capture.

```javascript
import "./instrument";
import App from "./App";
import { createRoot } from "react-dom/client";
import * as Sentry from "@sentry/react";

const container = document.getElementById("app");
const root = createRoot(container, {
  // Callback called when an error is thrown and not caught by an ErrorBoundary.
  onUncaughtError: Sentry.reactErrorHandler((error, errorInfo) => {
    console.warn("Uncaught error", error, errorInfo.componentStack);
  }),
  // Callback called when React catches an error in an ErrorBoundary.
  onCaughtError: Sentry.reactErrorHandler(),
  // Callback called when React automatically recovers from errors.
  onRecoverableError: Sentry.reactErrorHandler(),
});
root.render(<App />);
```

Using React 18 or below?

Use the `ErrorBoundary` component to capture rendering errors and display a fallback UI.

```javascript
import React from "react";
import * as Sentry from "@sentry/react";

function App() {
  return (
    <Sentry.ErrorBoundary fallback={<p>An error has occurred</p>}>
      <YourAppContent />
    </Sentry.ErrorBoundary>
  );
}
```

Learn more about [ErrorBoundary options](https://docs.sentry.io/platforms/javascript/guides/react/features/error-boundary.md).

### [Add Readable Stack Traces With Source Maps](https://docs.sentry.io/platforms/javascript/guides/react.md#add-readable-stack-traces-with-source-maps)

Source maps are **essential for debugging production errors**. Without them, stack traces point to minified code.

Run the Sentry wizard to configure source map uploads for your bundler:

* **[Vite](https://docs.sentry.io/platforms/javascript/guides/react/sourcemaps/uploading/vite.md)** — Recommended for new projects
* **[Webpack](https://docs.sentry.io/platforms/javascript/guides/react/sourcemaps/uploading/webpack.md)** — Common in existing projects
* **[Rollup](https://docs.sentry.io/platforms/javascript/guides/react/sourcemaps/uploading/rollup.md)** or **[esbuild](https://docs.sentry.io/platforms/javascript/guides/react/sourcemaps/uploading/esbuild.md)** — For custom setups

```bash
npx @sentry/wizard@latest -i sourcemaps
```

### [Set Up Routing (Optional)](https://docs.sentry.io/platforms/javascript/guides/react.md#set-up-routing-optional)

If you're using client-side routing, configure Sentry to capture navigation events for better performance insights.

Select your router:

* [React Router v7](https://docs.sentry.io/platforms/javascript/guides/react/features/react-router/v7.md)
* [React Router v6](https://docs.sentry.io/platforms/javascript/guides/react/features/react-router/v6.md)
* [Older versions](https://docs.sentry.io/platforms/javascript/guides/react/features/react-router.md)
* [TanStack Router](https://docs.sentry.io/platforms/javascript/guides/react/features/tanstack-router.md)

```javascript
import React from "react";
import * as Sentry from "@sentry/react";
import {
  useLocation,
  useNavigationType,
  createRoutesFromChildren,
  matchRoutes,
} from "react-router";

Sentry.init({
  dsn: "https://<key>@o<orgId>.ingest.sentry.io/<projectId>",
  integrations: [
    Sentry.reactRouterV7BrowserTracingIntegration({
      useEffect: React.useEffect,
      useLocation,
      useNavigationType,
      createRoutesFromChildren,
      matchRoutes,
    }),
  ],
});
```

### [Capture Redux State Data (Optional)](https://docs.sentry.io/platforms/javascript/guides/react.md#capture-redux-state-data-optional)

Capture Redux state and actions with your errors using `Sentry.createReduxEnhancer`.

Learn more about [Redux integration options](https://docs.sentry.io/platforms/javascript/guides/react/features/redux.md).

```javascript
import { createStore, compose } from "redux";
import * as Sentry from "@sentry/react";

const sentryEnhancer = Sentry.createReduxEnhancer();

const store = createStore(rootReducer, compose(sentryEnhancer));
```

### [Avoid Ad Blockers With Tunneling (Optional)](https://docs.sentry.io/platforms/javascript/guides/react.md#avoid-ad-blockers-with-tunneling-optional)

Some ad blockers prevent Sentry events from being sent. Use the `tunnel` option to route events through your server.

Learn more about [setting up tunneling](https://docs.sentry.io/platforms/javascript/guides/react/troubleshooting.md#using-the-tunnel-option).

```javascript
Sentry.init({
  dsn: "https://<key>@o<orgId>.ingest.sentry.io/<projectId>",
  tunnel: "/tunnel",
});
```

### [Control the Data You Send to Sentry (Optional)](https://docs.sentry.io/platforms/javascript/guides/react.md#control-the-data-you-send-to-sentry-optional)

By default, the SDK sends user identity data (IP address, ID, and similar) and other data like HTTP bodies and URL query parameters. This will give you rich debugging context.

The SDK always filters sensitive values whose keys match a built-in denylist, such as `auth` or `password`, and sends `[Filtered]` instead.

To send less data, turn off the categories you don't need in the `dataCollection` option. For the full list of categories and their defaults, [see the `dataCollection` options](https://docs.sentry.io/platforms/javascript/guides/react/configuration/options.md#dataCollection).

```javascript
Sentry.init({
  dsn: "https://<key>@o<orgId>.ingest.sentry.io/<projectId>",
  dataCollection: {
    userInfo: false,
    // other categories
  },
});
```

## [Verify Your Setup](https://docs.sentry.io/platforms/javascript/guides/react.md#verify-your-setup)

##### Important

Errors triggered from within your browser's developer tools (like the browser console) are sandboxed, so they will not trigger Sentry's error monitoring.

Add a test button to trigger an error, then check Sentry to confirm it's working.

**Errors** — [Open Issues](https://sentry.io/orgredirect/organizations/:orgslug/issues/)

You should see "Sentry Test Error" with a stack trace pointing to your source code (if source maps are configured).

**Tracing** — [Open Traces](https://sentry.io/orgredirect/organizations/:orgslug/explore/traces/)

You should see page load traces and the test span. Learn more about [custom instrumentation](https://docs.sentry.io/platforms/javascript/guides/react/tracing/instrumentation/custom-instrumentation.md).

**Session Replay** — [Open Replays](https://sentry.io/orgredirect/organizations/:orgslug/replays/)

Watch a video-like recording of your session, including the moment the error occurred. Learn more about [Session Replay configuration](https://docs.sentry.io/platforms/javascript/guides/react/session-replay.md).

**Logs** — [Open Logs](https://sentry.io/orgredirect/organizations/:orgslug/explore/logs/) NEW

See structured log entries from your application. Learn more about [Logs configuration](https://docs.sentry.io/platforms/javascript/guides/react/logs.md).

```javascript
<button
  type="button"
  onClick={() => {
    throw new Error("Sentry Test Error");
  }}
>
  Break the world
</button>;
```

To test tracing, wrap the error in a span:

```javascript
<button
  type="button"
  onClick={() => {
    Sentry.startSpan({ op: "test", name: "Example Frontend Span" }, () => {
      setTimeout(() => {
        throw new Error("Sentry Test Error");
      }, 99);
    });
  }}
>
  Break the world
</button>;
```

Send logs from anywhere in your app:

```javascript
Sentry.logger.info("User action", { userId: "123" });
Sentry.logger.warn("Slow response", { duration: 5000 });
Sentry.logger.error("Operation failed", { reason: "timeout" });
```

Not seeing events in Sentry?

**1. Enable debug mode** to see SDK activity in the console:

```javascript
Sentry.init({
  dsn: "https://<key>@o<orgId>.ingest.sentry.io/<projectId>",
  debug: true,
});
```

**2. Check your DSN** — Ensure it's correctly copied from your [Sentry project settings](https://sentry.io/orgredirect/organizations/:orgslug/projects/).

**3. Disable ad blockers** — Some ad blockers prevent Sentry from sending events. See [tunneling](https://docs.sentry.io/platforms/javascript/guides/react.md#avoid-ad-blockers-with-tunneling-optional) for a workaround.

**4. Check your quota** — View your [usage stats](https://sentry.io/orgredirect/organizations/:orgslug/stats/) to ensure you haven't exceeded your plan limits.

For more help, see the [Troubleshooting page](https://docs.sentry.io/platforms/javascript/guides/react/troubleshooting.md).

## [Next Steps](https://docs.sentry.io/platforms/javascript/guides/react.md#next-steps)

You've successfully integrated Sentry into your React application! Here's what to explore next:

* Explore [practical guides](https://docs.sentry.io/guides.md) on what to monitor, log, track, and investigate after setup
* [Session Replay](https://docs.sentry.io/platforms/javascript/guides/react/session-replay.md) — Watch video-like reproductions of user sessions to debug errors in context
* [Distributed Tracing](https://docs.sentry.io/platforms/javascript/guides/react/tracing/distributed-tracing.md) — Trace requests from your React frontend to backend services
* [Connect GitHub + Seer](https://docs.sentry.io/integrations/source-code-mgmt/github.md#installing-github) — Enable AI-powered [root cause analysis](https://docs.sentry.io/product/ai-in-sentry/seer.md) by connecting your repository
* [Logs](https://docs.sentry.io/platforms/javascript/guides/react/logs.md) — Send structured logs correlated with errors and traces
* [Metrics](https://docs.sentry.io/platforms/javascript/guides/react/metrics.md) BETA— Track custom counters, gauges, and distributions to monitor application health

## Other JavaScript Frameworks

- [Angular](https://docs.sentry.io/platforms/javascript/guides/angular.md)
- [Astro](https://docs.sentry.io/platforms/javascript/guides/astro.md)
- [AWS Lambda](https://docs.sentry.io/platforms/javascript/guides/aws-lambda.md)
- [Azure Functions](https://docs.sentry.io/platforms/javascript/guides/azure-functions.md)
- [Bun](https://docs.sentry.io/platforms/javascript/guides/bun.md)
- [Capacitor](https://docs.sentry.io/platforms/javascript/guides/capacitor.md)
- [Cloud Functions for Firebase](https://docs.sentry.io/platforms/javascript/guides/firebase.md)
- [Cloudflare](https://docs.sentry.io/platforms/javascript/guides/cloudflare.md)
- [Connect](https://docs.sentry.io/platforms/javascript/guides/connect.md)
- [Cordova](https://docs.sentry.io/platforms/javascript/guides/cordova.md)
- [Deno](https://docs.sentry.io/platforms/javascript/guides/deno.md)
- [Effect](https://docs.sentry.io/platforms/javascript/guides/effect.md)
- [Electron](https://docs.sentry.io/platforms/javascript/guides/electron.md)
- [Elysia](https://docs.sentry.io/platforms/javascript/guides/elysia.md)
- [Ember](https://docs.sentry.io/platforms/javascript/guides/ember.md)
- [Express](https://docs.sentry.io/platforms/javascript/guides/express.md)
- [Fastify](https://docs.sentry.io/platforms/javascript/guides/fastify.md)
- [Gatsby](https://docs.sentry.io/platforms/javascript/guides/gatsby.md)
- [Google Cloud Functions](https://docs.sentry.io/platforms/javascript/guides/gcp-functions.md)
- [Hapi](https://docs.sentry.io/platforms/javascript/guides/hapi.md)
- [Hono](https://docs.sentry.io/platforms/javascript/guides/hono.md)
- [Koa](https://docs.sentry.io/platforms/javascript/guides/koa.md)
- [Nest.js](https://docs.sentry.io/platforms/javascript/guides/nestjs.md)
- [Next.js](https://docs.sentry.io/platforms/javascript/guides/nextjs.md)
- [Nitro](https://docs.sentry.io/platforms/javascript/guides/nitro.md)
- [Node.js](https://docs.sentry.io/platforms/javascript/guides/node.md)
- [Nuxt](https://docs.sentry.io/platforms/javascript/guides/nuxt.md)
- [React Router Framework](https://docs.sentry.io/platforms/javascript/guides/react-router.md)
- [Remix](https://docs.sentry.io/platforms/javascript/guides/remix.md)
- [Solid](https://docs.sentry.io/platforms/javascript/guides/solid.md)
- [SolidStart](https://docs.sentry.io/platforms/javascript/guides/solidstart.md)
- [Svelte](https://docs.sentry.io/platforms/javascript/guides/svelte.md)
- [SvelteKit](https://docs.sentry.io/platforms/javascript/guides/sveltekit.md)
- [TanStack Start React](https://docs.sentry.io/platforms/javascript/guides/tanstackstart-react.md)
- [Vue](https://docs.sentry.io/platforms/javascript/guides/vue.md)
- [Wasm](https://docs.sentry.io/platforms/javascript/guides/wasm.md)

## Topics

- [Capturing Errors](https://docs.sentry.io/platforms/javascript/guides/react/usage.md)
- [Source Maps](https://docs.sentry.io/platforms/javascript/guides/react/sourcemaps.md)
- [Logs](https://docs.sentry.io/platforms/javascript/guides/react/logs.md)
- [React Features](https://docs.sentry.io/platforms/javascript/guides/react/features.md)
- [Session Replay](https://docs.sentry.io/platforms/javascript/guides/react/session-replay.md)
- [Tracing](https://docs.sentry.io/platforms/javascript/guides/react/tracing.md)
- [Agent Tracing](https://docs.sentry.io/platforms/javascript/guides/react/agent-tracing.md)
- [Application Metrics](https://docs.sentry.io/platforms/javascript/guides/react/metrics.md)
- [Profiling](https://docs.sentry.io/platforms/javascript/guides/react/profiling.md)
- [User Feedback](https://docs.sentry.io/platforms/javascript/guides/react/user-feedback.md)
- [Sampling](https://docs.sentry.io/platforms/javascript/guides/react/sampling.md)
- [Enriching Events](https://docs.sentry.io/platforms/javascript/guides/react/enriching-events.md)
- [Extended Configuration](https://docs.sentry.io/platforms/javascript/guides/react/configuration.md)
- [Feature Flags](https://docs.sentry.io/platforms/javascript/guides/react/feature-flags.md)
- [Data Management](https://docs.sentry.io/platforms/javascript/guides/react/data-management.md)
- [Security Policy Reporting](https://docs.sentry.io/platforms/javascript/guides/react/security-policy-reporting.md)
- [Special Use Cases](https://docs.sentry.io/platforms/javascript/guides/react/best-practices.md)
- [Migration Guide](https://docs.sentry.io/platforms/javascript/guides/react/migration.md)
- [Troubleshooting](https://docs.sentry.io/platforms/javascript/guides/react/troubleshooting.md)