Supabase is an open-source Firebase alternative built on PostgreSQL, providing a complete managed backend: database, authentication, file storage, edge functions, real-time subscriptions, and auto-generated REST and GraphQL APIs. Used by 1M+ developers and deployed on AWS, it is the default backend choice for Next.js and React projects that need Postgres without managing infrastructure — with a generous free tier and transparent, usage-based pricing.
Build with Supabase, the open-source Firebase alternative offering AI vector search, real-time databases, and authentication for developers worldwide.
Use Supabase if your team knows SQL and you want an open-source, Postgres-backed backend — your data is portable, pricing is transparent, and you can self-host. Firebase has stronger mobile SDK support and is the better choice for iOS/Android apps with complex offline sync. Supabase pricing is more predictable (Postgres queries are free beyond generous limits; Firebase charges per read and surprises teams at scale). For Next.js or React web apps: Supabase. For native mobile apps with offline-first requirements: Firebase.
Supabase Free tier includes 2 active projects, 500MB database, 1GB file storage, 50,000 monthly active users, and edge function invocations — enough to build and launch a side project. Pro ($25/mo/project): 8GB database, 100GB storage, daily backups, and no pause on inactivity. The main free tier limitation: projects pause after 1 week of inactivity. For any production app: Pro. For prototyping and learning: the free tier covers everything you need.
Also see: Convex
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