Supabase Has a Free Backend Platform: PostgreSQL Database, Auth, Storage, and Real-Time — The Open-Source Firebase Alternative

Firebase locks you into Google's NoSQL database, proprietary APIs, and pricing that scales unpredictably. You want the convenience of BaaS but with real SQL, open source, and predictable costs. That's Supabase — Firebase built on PostgreSQL, with auth, storage, edge functions, and real-time subscriptions. Free Tier 500 MB database storage 1 GB file storage 50,000 monthly active users (auth) 2 GB bandwidth 500,000 edge function invocations Quick Start npx supabase init npx supabase start # Local development with Docker Or use the hosted version at supabase.com . Database Queries import { createClient } from " @supabase/supabase-js " ; const supabase = createClient ( process . env . SUPABASE_URL , process . env . SUPABASE_ANON_KEY ); // SELECT const { data : users } = await supabase . from ( " users " ) . select ( " id, name, email, posts(title, created_at) " ) . eq ( " active " , true ) . order ( " created_at " , { ascending : false }) . limit ( 20 ); // INSERT const { data : newUser }