JavaScript Client

The Exceptionless JavaScript client SDK makes it easy to report errors, log details, track feature usage and more. Be sure you have an Exceptionless account (you can sign up here) or that you are self-hosting a running instance of Exceptionless.

If you are looking for framework-specific guides, you can jump right to them below.

  • React
  • Vue
  • Svelte

To get started, you'll need to install the Exceptionless client. There are three main ways to do this: Yarn, npm, and CDN.


To install with Yarn, run: yarn add exceptionless


To install with npm, run: npm install exceptionless


To install via a script tag referencing Exceptionless over a CDN, add the following before your closing <body> tag:

<script src=""></script>

Quick Start #

Once Exceptionless is installed, you can configure the client and start using it. Here's a basic configuration example to get you started:

import { ExceptionlessClient } from "exceptionless/dist/exceptionless";
const config = {
const client = new ExceptionlessClient(config);

Next > Configuration