The Best Chrome Extension Analytics Tools in 2026, Ranked
6 min readModerok team
We ranked 7 chrome extension analytics options: Web Store stats, GA4, Mixpanel, Amplitude, PostHog, Aptabase, and Moderok. One was built for the job.
Searching for the best Chrome extension analytics tool drops you into a trap: almost every "analytics tool" you can name was built for websites, and a Chrome extension is not a website. Standard SDKs crash in the background service worker, Chrome bans remote scripts, and the browser kills your worker mid-thought and deletes anything held in memory.
So we ranked the seven realistic options by the only test that matters: how fast does each one get an extension developer to real answers?
Yes, we build Moderok. Yes, it comes first. We will show our work, including the one place it loses.
TL;DR: Web Store stats are a lagging scoreboard, GA4 and Mixpanel and Amplitude make you build the hard parts yourself, PostHog's best features go blind in a background service worker, and Aptabase is a genuine rival with a smaller SDK that tracks less for you. Moderok is the only one on the list built exclusively for extensions: a small MV3 setup, automatic install and usage tracking, and a free tier covering 1 million events a month.
The scoreboard
| Rank | Tool | Built for extensions | MV3 setup | Anonymous identity out of the box | Short verdict |
|---|---|---|---|---|---|
| 1 | Moderok | Yes: Only extensions | Install, permission, init | Yes: A random profile id and no identify() | Built for this exact job |
| 2 | Aptabase | Yes: A dedicated extension SDK | Low | Yes: Anonymous by design | Smaller than us, does less |
| 3 | PostHog | No | Documented, multi-step | No: You store and bootstrap the id yourself | Capable, but heavy and DOM-first |
| 4 | Google Analytics 4 | No | Heavy DIY | No: You invent and persist the client id | Free, plus a weekend of plumbing |
| 5 | Mixpanel | No | Heavy DIY | No: identify() is the intended path | The SDK won't even load |
| 6 | Amplitude | No | Heavy DIY | No: You supply a device or user id | Enterprise machinery, indie problem |
| 7 | Web Store stats | Partial | None | Not applicable, aggregate counts only | A scoreboard, not analytics |
No. 1Moderok: built for extensions, nothing else
Four of the six alternatives below need a workaround to live inside your extension, and a fifth, the Web Store's own stats, never runs inside it at all. Moderok is the workaround, productized, and against the one that does not need it, Aptabase, the argument is what gets tracked without you asking.
The SDK runs natively in the MV3 service worker, weighs 5.7 kB gzipped with zero runtime dependencies, and ships as one bundled file with nothing fetched at runtime. Retryable failures are persisted to a capped queue and retried with backoff after worker restarts. Once you install the package, add the storage permission, and call init(), installs, updates, first opens, daily actives, and errors are instrumented automatically. The dashboard opens on installs, active users, update counts, and logs, with drill-down to raw events when a release misbehaves.
Moderok assigns a random profile id by default and does not offer an identify() call. Custom event properties are developer-controlled, so your Chrome Web Store disclosure still has to match what you send. Pricing is one number: free to 1 million events a month, $29 for 10 million, $149 for 100 million, every feature on every plan.
Best for: anyone whose extension is the product.
No. 2Aptabase: the one that gives us a real fight
Aptabase is the only other tool here that took extensions seriously. It is privacy-first, open source (AGPLv3 server, MIT SDKs), and ships @aptabase/browser, a purpose-built extension SDK, not a web library with a workaround stapled on. It is also smaller than ours: 1.9 kB gzipped for @aptabase/browser v0.1.2 (dist/index.js, measured 2 September 2026) against Moderok's 5.7 kB. If bundle bytes are your deciding factor, they win, and we would rather say so than pretend otherwise.
Where we differ is what happens after init(). Read their SDK and you will find trackEvent, a session id, and chrome.storage, but no chrome.runtime.onInstalled listener, so installs, updates, first opens, and daily actives are events you define, fire, and later figure out how to chart. Aptabase then shows them in a dashboard built for apps in general; ours opens on those extension lifecycle counts. That is the trade: their smaller SDK asks you to build the extension-shaped part yourself, and extensions are one platform among their mobile, desktop, and web support rather than the whole product.
Best for: developers who want the smallest possible SDK, or one tool across apps on several platforms.
No. 3PostHog: the all-in-one that goes blind here
PostHog bundles analytics, session replay, flags, and surveys, and on a website it is excellent. It does publish a real browser extension guide, which is more than most of this list can say. Follow it into the background service worker, though, and the headline features have nothing to watch: their own guide turns off autocapture, session recording, and surveys there, sets persistence to memory, and hands you the job of storing a shared id in chrome.storage. That is 80 kB gzipped of library (the module.no-external bundle their guide specifies, at v1.409.5) doing what a much smaller one could. Its genuine trump card is self-hosting, if you truly need it. Full breakdown: Moderok vs PostHog.
Best for: teams whose real product is a web app, or hard self-hosting requirements.
No. 4Google Analytics 4: free, famous, wrong shape
The default reflex, and the tag cannot run in an extension at all. You hand-code Google's Measurement Protocol, invent your own client id, build a crash-proof queue, then arrive in a dashboard about traffic sources and bounce rates. Cheapest in dollars, priciest in weekends. The gory details: Moderok vs Google Analytics.
Best for: teams that need extension events inside Google's ads machine.
No. 5Mixpanel: powerful, and it won't load
mixpanel-js crashes in a service worker looking for a document that does not exist, so you are onto the raw HTTP API and the same plumbing homework as GA4, in service of a tool built around identifying users your extension should keep anonymous. Head-to-head: Moderok vs Mixpanel.
Best for: extensions that are sidekicks to a product already living in Mixpanel.
No. 6Amplitude: an enterprise answer to an indie question
Same MV3 wall, same DIY integration, plus a platform designed for data teams with onboarding, taxonomy planning, and negotiate-your-renewal pricing at the top. Superb if you are the Fortune 500. You are shipping an extension. Full comparison: Moderok vs Amplitude.
Best for: companies already paying for Amplitude anyway.
No. 7Chrome Web Store built-in stats: the lagging scoreboard
Free, automatic, and worth glancing at. Also: delayed, browser-based rather than people-based, and silent about everything users do after installing. Its two headline numbers do not even agree with each other, which we dissected in Weekly Users vs Installs. A baseline, not a decision-making tool.
Best for: a sanity check. Keep it, don't rely on it.
How to choose in ten seconds
- Extension is a sidekick to a bigger product? Use whatever that product uses, via its API, and budget the plumbing time.
- Hard self-hosting requirement? PostHog or Aptabase.
- Counting every kilobyte in your bundle? Aptabase, at 1.9 kB against our 5.7 kB (both gzipped; Aptabase measured 2 September 2026 at v0.1.2).
- Extension is the product and you want the lifecycle answered for you? That is Moderok.
Start with the one built for the job. Moderok is free for 1 million events a month and works even with an unpublished local build. Set up your first install chart at moderok.dev.