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Bugsnag error reporter for JavaScript

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The Bugsnag error reporter for JavaScript automatically detects and reports errors and exceptions in your client-side JavaScript code.

The library is incredibly small, has no external dependencies (not even jQuery!), and works in all browsers (even mobile browsers!), so you can safely use it on any website. See the browser compatibility guide for more information.

Learn more about Bugsnag's JavaScript error monitoring solution.

Getting started

  1. Create a Bugsnag account
  2. Complete the instructions in the integration guide
  3. Report handled exceptions using Bugsnag.notifyException()
  4. Customize your integration using the configuration options



All contributors are welcome! For information on how to build, test, and release bugsnag-js, see our contributing guide.


The Bugsnag JS library is free software released under the MIT License. See LICENSE.txt for details.