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Error and Performance Monitoring for Next.js

Automatically capture errors and performance bottlenecks with clear, actionable debugging context for your Next.js app—across client, server, and edge components.

Next.js monitoring that's "not bad"

Get detailed stack traces and debugging context for every error—without having to ask for screenshots of the users console. De-minify your code while keeping source maps  private and connect issues across your Next.js app. Session Replay shows exactly what led up to an issue, helping you debug hydration errors, navigation failures, layout shifts, and user frustration signals like rage clicks and dead clicks.

Trace requests from client-side interactions through RSCs, server actions, and edge functions. Get precise context down to the line of broken code to:

  • Pinpoint slow or failing server actions without sifting through logs

  • Track database queries that slow down API responses

  • Catch middleware failures affecting authentication and redirects

  • Monitor edge function timeouts impacting user experience

Sentry spots the bottlenecks that are impacting real users like:

  • Rendering delays from inefficient hooks and effects

  • Unnecessary re-renders that degrade performance

  • Slow API responses from server-side functions

  • Blocking middleware increasing response times

With Codecov, get clear insights into your Next.js app’s coverage and test performance.

  • Identify gaps in API route and component test coverage

  • Spot flaky tests causing CI/CD failures

  • Ensure critical functionality like authentication and routing is well-tested

Getting started is simple

Just run this command to sign up for and install Sentry.

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npx @sentry/wizard@latest -i nextjs

Enable Sentry Tracing by adding the below code.

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import * as Sentry from '@sentry/nextjs'; Sentry.init({ dsn: 'https://examplePublicKey@o0.ingest.sentry.io/0', // We recommend adjusting this value in production, or using tracesSampler // for finer control tracesSampleRate: 1.0, });

Common Next.js Issues Solved

Hydration Errors

Whether it's a flickering UI or missing elements, Sentry's hydration error diff tools make it easy to instantly detect and debug mismatches between server-rendered and client-rendered HTML.

API Route Performance

Monitor response times and error rates across your Next.js API routes with automatic instrumentation.

Edge Function Issues

Track execution times and errors in your edge functions with complete debugging context.


Prevent Silent Failures in Vercel Cron Jobs

Missed database cleanups or failed API syncs can go unnoticed, leading to data inconsistencies or increased storage costs. Ensure your scheduled tasks are running on time and without errors with Sentry’s cron monitoring.

Detect Downtime

Get real-time alerts when your application is unavailable, so you can respond quickly before it impacts your users.

FAQs

Traditional logging provides you with a trail of events. Some of those events are errors, but many times they’re simply informational. Sentry is fundamentally different because we focus on exceptions, or in other words, we capture application crashes. We discuss in more detail here and on our blog.

Sentry supports every major frontend language, framework, and library. You can browse each of them here.

You can get started for free. Pricing depends on the number of monthly events, transactions, and attachments that you send Sentry. For more details, visit our pricing page.

Sentry doesn’t impact a web site’s performance.

If you look at the configuration options for when you initialize Sentry in your code, you’ll see there’s nothing regarding minimizing its impact on your app’s performance. This is because our team of SDK engineers already developed Sentry with this in mind.

Sentry is a listener/handler for errors that asynchronously sends out the error/event to Sentry.io. This is non-blocking. The error/event only goes out if this is an error.

Global handlers have almost no impact as well, as they are native APIs provided by the browsers.

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© 2025 • Sentry is a registered Trademark of Functional Software, Inc.