Try Bugsnag's JavaScript error reporting

Automatically detect JavaScript errors on your website, and get detailed diagnostic reports and real-time error notifications.

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Effortless JavaScript error detection

Debug JavaScript errors more efficiently. Add one line of code to your website and focus on the issues that matter most to you and your users.

One line integration

Add a single script tag to your website or install via npm. It takes less than a minute to integrate and you'll immediately begin monitoring and reporting JavaScript errors.

Automatically detect script errors

Detect each time a user experiences an error. There’s absolutely no need to change your code or add try/catch blocks.

Get alerted to errors affecting users

Bugsnag automatically captures errors and alerts you via email, Slack, PagerDuty, and more. You'll also see detailed error reports in your dashboard for faster debugging.

Integrate with your Laravel ecosystem

Bugsnag works well with your Laravel tooling — integrate with the application logger, or monitor your Lumen projects, too, with Bugsnag for Lumen.

Real-time alerts where you already work

Bugsnag automatically alerts you via Slack and PagerDuty when errors are detected. Select your alerting preferences to know when new errors, regressions, or spike in your error rate occur.

Proactively address software quality

Visibility into errors is only the first step. With two-way integrations and in-app workflow, you'll also make progress prioritizing bugs and moving them through your debugging process.

Notify your team instantly

Bugsnag works with your existing developer tools. Keep a close watch on your JS app from places like Slack, HipChat, and Gitter, or with email and SMS notifications. Automatically create tickets in JIRA, GitHub Issues, Pivotal Tracker, and more when a new error is found.

Support for JavaScript frameworks

Bugsnag supports JS frameworks - React, Vue, and Angular - with error reporting libraries that hook into your frameworks' error handler and report framework specific diagnostics.

Cross-browser error detection

Ship new code with the confidence that you'll be able to quickly respond whenever JavaScript errors happen, wherever they occur.

Cross-browser error grouping

From old IE to modern Chrome, monitor your JS errors everywhere. See your errors from modern browsers grouped together flawlessly, even if you use minification and cache-busting techniques.

Reproduce errors with environment data

Important diagnostic data is automatically collected on each error like the browser and version, OS, request, and React specific data. You can also send custom data if what we capture isn’t enough.

Automatically collected user activity

Efficiently reproduce errors with a timeline of user and system events leading up to each error, like clicks, console logs and errors, page load, and more.

Browser and OS Breakdowns

See the breakdown of the browsers and operating systems in which errors occurred. You’ll be able to quickly identify if an error is limited to a single browser, or a class of browsers.

User and environment data

Bugsnag automatically captures diagnostic data like request information, session data, and more. It also captures user information in order to correlate errors with customers.

Customize your error reports

Bugsnag automatically captures as much information as possible, but since all apps are unique, you can easily customize your reportand send the data you need to assess and reproduce every error.

Prioritize your JavaScript errors

With error sorting, filtering, and trend analysis, keep your team focused on the issues that matter most.

Filter out the noise

Multi-dimensional filters for browser, OS, user, and more help you hone in on relevant errors. Easily filter to find specific errors you're looking for and clear away noise from your view.

Identify impactful errors at a glance

Sort errors by event count and users impacted to find the ones that occur most frequently or affect a widespread section of your users. This can help you prioritize errors that need fixing.

Benchmark releases to improve application health

Use the Releases dashboard to decide if a release is successful or needs to be rolled back. The crash rate indicator shows the percentage of sessions in a release that end in a crash, allowing you to compare release health and track improvements over time.

Correlate errors with users

Looking at error counts alone won't give you a full understanding of an error's severity. Correlate errors with users to see how widespread an error really is.

Decrease noisy errors

Cross-browser error grouping, domain whitelisting, discarding errors from legacy browsers, and stripped out browser extension errors help to decrease noisy React errors and keep you focused on the ones that matter. Learn more JS monitoring best practices.

Automatic diagnostic collection

With access to powerful diagnostics, get to the root cause of errors quickly and fix frustrating bugs.

Stacktrace and source maps support

See the code that caused the error, even if your code is minified. If you’re using source maps we’ll show you the exact line that caused the crash.

Automatically collected breadcrumbs

Efficiently reproduce errors with a timeline of user and system events leading up to each error, like clicks, console logs and errors, page load, and more.

Production ready JavaScript error detection

Resilient JavaScript error monitoring that's used on some of the world's biggest sites. We'll be here when you need us most.

Lightweight library

Weighing in at less than 10KB, our JavaScript code adds no noticeable overhead to your page loads. The library is hosted on Amazon’s Cloudfront CDN with edge locations around the world — or you can host it on your own servers.

Open source

All Bugsnag libraries are open source so you can see the error handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or you can host Bugsnag on premise.

Open source

All Bugsnag notifiers are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or you can host Bugsnag on premise for total control of your error data.

Open source

All Bugsnag libraries are open source so you can see the error handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or you can host Bugsnag on premise.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag libraries are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or host it yourself with on-premise Bugsnag.

Open source

All Bugsnag notifiers are open source so you can see the exception handling code and even make pull requests to suggest improvements.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks. Or you can host Bugsnag on premise for total control of your error data.

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks.

Developer centric support

Hands on support from our development team to ensure your integration goes smoothly


Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks.

Developer centric support

Hands on support from our development team to ensure your integration goes smoothly

Enterprise level security

Send errors to our servers using 256-bit SSL, the same encryption used by the world’s leading banks.

Developer centric support

Hands on support from our development team to ensure your integration goes smoothly

Breakup with Crashlytics

If you’re increasingly frustrated with Crashlytics, watch our video on why Andi and Ashly are breaking up. Although breakups are usually tough, see why this one isn’t for Andi.

If you’re increasingly frustrated with Crashlytics, watch our video on why Andi and Ashly are breaking up. Although breakups are usually tough, see why this one isn’t for Andi because among many disappointments, Ashly isn’t interested in speaking to Andi’s relatives in React Native.

If you’re increasingly frustrated with Crashlytics, watch our video on why Andi and Ashly are breaking up. Although breakups are usually tough, see why this one isn’t for Andi because among many disappointments, Ashly isn’t interested in meeting Andi’s Kotlin friends.

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"
Bugsnag helps Lyft focus on new features and provide a better experience for our users.”
Billy Pham
TECHNICAL PROGRAM MANAGER
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