Supabase

Supabase is the open-source Firebase alternative that has become one of the most beloved and fastest-growing backend infrastructure platforms in the developer community — demonstrating with remarkable clarity that an open-source-first approach can produce a product experience not just competitive with proprietary alternatives, but genuinely superior to them. Founded in 2020 by Paul Copplestone and Ant Wilson, Supabase was built on the conviction that PostgreSQL — the world's most advanced open-source relational database — should be the foundation of every modern backend, and that every developer should have access to world-class database, authentication, storage, and real-time infrastructure without vendor lock-in. Supabase provides a fully managed PostgreSQL database augmented by an authentication system supporting email, magic links, OAuth with dozens of providers, and phone authentication out of the box; auto-generated RESTful and GraphQL APIs allowing frontend developers to interact with their database without writing backend code; real-time subscriptions built on PostgreSQL logical replication enabling developers to build collaborative live-updating interfaces; and an S3-compatible object storage service handling file uploads, image transformations, and asset management at any scale. Supabase Edge Functions — serverless TypeScript functions deployed globally on Deno — round out a backend platform that serves as the complete infrastructure layer for modern web and mobile applications. The developer experience is widely regarded as the finest in the backend-as-a-service category, combining an elegant dashboard, comprehensive documentation, an active open-source community, and a generous free tier that allows developers to build real applications without upfront cost. For developers building with Next.js, SvelteKit, Flutter, and React Native who want a powerful, portable, and fully open-source backend that scales from prototype to production, Supabase is the definitive choice.