Supabase: Used by 55% of YC companies

Supabase is becoming YC’s default launch infrastructure.

The open-source alternative to Firebase has quietly become a core part of the modern startup stack — offering instant Postgres, auth, edge functions, and real-time APIs without the lock-in.

More than 1,000 Y Combinator startups now use Supabase to build and scale their products — and in the latest YC batch, an astonishing 55% chose Supabase as their backend platform.