Web analytics for developers.

A lightweight script, clean APIs and data you can actually query. Set up in 5 minutes, free to start, no credit card required.

Start free

One script. No SDK,
no build step.

Paste the snippet and you're tracking. Works with React, Vue, Next.js, plain HTML and apps built in Lovable, Replit or v0. Loads async, never blocks rendering.

Installing the Bigdelta snippet in a vibe-coded app
Built for developers

Small footprint,
full picture.

Lightweight snippet

Small and loaded asynchronously, so it doesn't block your pages from rendering.

First-party tracking

No sampling, no delays and no third-party data sharing. You own the full picture.

SPA-ready

Route changes in React, Vue and other single-page apps are tracked automatically. Client-side navigation shows up like any other pageview.

Slice the data yourself.

Filter and segment by page, event or visitor attribute. Track anything custom with a bd.track() call from the snippet, or stream server-side events over the REST API.

Segmenting funnel data by visitor type
Keep exploring

More than pageviews.

The same snippet powers replays, heatmaps, funnels and profiles.

Web analytics

Visitors, pageviews and traffic sources in real time, on a dashboard you don't have to configure.

Session replays

Reproduce bugs by watching the session where the error happened, instead of asking users for screenshots.

Funnels

Define steps and see where visitors drop off between them.

From the library

Before you pick
a tool.

Lovable's built-in analytics

What Lovable tracks out of the box, and where the built-in numbers stop.

Replit's built-in analytics

What you get from Replit's own dashboard and when you need more.

Google Analytics alternatives

How lightweight tools compare to GA4, and who each is for.

Frequently asked questions

No. The snippet is small and loads asynchronously, so it doesn't block your pages from rendering.

Yes. Route changes in React, Vue and other single-page apps are tracked automatically, so client-side navigation shows up like any other pageview.

Yes. Send any event with properties using a single bd.track() call, and tie anonymous sessions to known users with bd.identify() once they sign in.

Yes. The REST API accepts server-side events from any runtime that can make an HTTPS request, with batching up to 500 events per request and idempotency keys for safe retries.

On EU servers, GDPR-compliant. Bigdelta doesn't sell visitor data or use it for advertising.

Try Bigdelta

Start free

Connected in 5 minutes. No credit card required.