Analytics built for browser extensions.

One 2 KB SDK for installs, active users, and custom events — across Chrome, Firefox, Edge, VS Code and more. Zero dependencies. No user tracking.

npm install extstat · free for 10,000 events / month

Why extstat

Up and running in three steps

  1. Create a project in the dashboard and copy your API key.
  2. Install & init the SDK in your extension's background script.
  3. Track events — they appear in your dashboard within seconds.
import { init } from "extstat";

const analytics = init({
  apiKey: "esk_your_project_key",   // from your dashboard
  endpoint: "https://ingest.extstat.dev/v1/e",
});

analytics.track("install");
analytics.track("feature_used", { feature: "export" });

That's the whole integration. The SDK batches events, persists them offline, and retries on its own.

Simple pricing

Free

$0/month

  • 10,000 events / month
  • Unlimited projects
  • All metrics & date ranges
  • Privacy features included
Get started

Pro

Unlimited events

  • Everything in Free
  • No monthly event cap
  • For extensions at scale
Upgrade in-app