Trackkit – provider-agnostic analytics SDK (Umami, Plausible, GA4)

After switching analytics providers twice in a couple of weeks (GA4 to Umami for privacy, then to Plausible for cost), I got fed up with altering tracking calls and initialization each time. It also drove home that things like consent gating, SPA navigation, and SSR hydration don't change regardless of provider, and shouldn’t need per-project implementation at all.

Trackkit is what I built to solve it. You switch providers by changing config, not code. It handles queue-first event capture with consent gating, SSR queue serialization and client-side replay, and optional typed event maps for compile-time checking. And it's a client library only, so no new services or infrastructure.

I've been testing it against my own projects, but I'm sure there are integration patterns and edge cases I haven't hit. If you try it and something breaks or feels wrong, please let me know. Issues and discussions are open on the repo.