Coming soon · installs, DAU, retention & churn

Real analytics
for chrome extensions

Drop in a 2 KB SDK. Get installs, DAU, retention, funnels and churn patterns — built for the unique constraints of MV3 service workers and content scripts.

Coming soon See the SDK

2 KB gzippedMV3 compatibleGDPR-readyFree to start

app.crxlytics.com / overview

LIVE

DAU

24,813

▲ 12.4%

Installs / 24h

412

▲ 4.1%

Day 7 retention

68.4%

▲ 2.0%

Active users · 30d

this periodprevious

Live event stream

● tracking

event · popup_opened

1,247

2s ago

event · shortcut_used

892

4s ago

event · settings_changed

124

7s ago

revenue · pro_upgraded

12s ago

event · tab_synced

2,104

14s ago

Top countries

🇺🇸 US38%

🇩🇪 DE22%

🇬🇧 UK14%

🇮🇳 IN11%

🇧🇷 BR7%

Built for indie extension developers & teams

Tabby

Lensly

Voltage

Klippr

Stack//OS

Forma

// features

Everything you wish GA4 had for extensions.

Purpose-built for browser extensions. No tag managers, no broken cookies, no chrome-extension:// referrer hell.

Real-time events

See every track() call land instantly. Filter, search and pivot live across all your users.

● popup_opened1284

● shortcut_used898

● tab_synced2054

Churn & retention

Cohort retention curves. Automatic churn pattern detection — see exactly why users uninstall.

Install100%

Onboarded78%

First action54%

Day 7 active31%

User profiles

Identify users, attach traits, track lifecycle across devices.

Geo & browser

Country, locale, browser version, OS — auto-collected, never PII.

Privacy first

No fingerprinting. Anonymous IDs only. GDPR-ready out of the box.

MV3 native

Service-worker safe. Offline event buffer. Resilient to suspended workers and content-script teardown.

service_workeroffline_bufferidle_detection

Attribution

First-touch attribution from your landing page to install. See which campaigns convert to retained users.

// install

Three lines. Sixty seconds.

Drop the SDK into your background script and start tracking. No tag managers, no build-step headaches.

SDK launching soon — preview below

01install

npm install

Or grab the CDN bundle. Works with webpack, esbuild, vite, Rollup, raw JS.

# 2kb gzipped
npm install @crxlytics/sdk

02init

Initialize

Add your API key in the background service worker. The SDK handles persistence, batching, and retry.

import { init } from '@crxlytics/sdk'

init({
  apiKey: 'pk_live_…'
})

03track

Track events

Send any event with structured props. Auto-attaches install_id, version, browser.

track('shortcut_used', {
  key: 'cmd+k',
  surface: 'popup'
})

// SDK

A real SDK, not a tag.

Typed. Tree-shakable. Service-worker safe. Works in popup, content script, sidepanel and offscreen documents.

SDK launching soon — preview below

// background.ts — MV3 service worker
import { init, track } from '@crxlytics/sdk'

init({
  apiKey: 'pk_live_8a2f…',
  flushInterval: 30000,
  debug: false
})

chrome.runtime.onInstalled.addListener((details) => {
  track('ext.installed', {
    reason: details.reason,
    version: chrome.runtime.getManifest().version
  })
})

chrome.commands.onCommand.addListener((command) => {
  track('shortcut_used', { command })
})

// pricing

Free until you ship. Cheap when you do.

Indie-friendly free tier, predictable team pricing. No per-seat tax, no surprise overages.

Hobby

$0/mo

For solo devs and side projects.

10,000 MAU
30-day data retention
Unlimited events
Real-time stream
Community support

Coming soon

Questions, answered.

Yes — it's built for MV3 first. The SDK survives service-worker suspension by buffering events to chrome.storage and flushing on wake. It also works in content scripts, side panels and offscreen documents.

Real analyticsfor chrome extensions