Supabase is the open source Firebase alternative, built on the power of PostgreSQL. Founded in 2020 and part of Y Combinator's 2020 batch, Supabase has quickly become one of the fastest-growing open source projects, trusted by hundreds of thousands of developers worldwide.

Supabase gives you all the tools you need to build a production backend: a PostgreSQL database with Row Level Security, authentication supporting 50+ OAuth providers, file storage, realtime subscriptions, and edge functions — all from a single platform.

Core Features

• Database — Fully managed PostgreSQL with extensions (pgvector, PostGIS, etc.)
• Auth — User authentication with email, social logins, and magic links via GoTrue
• Storage — S3-compatible file storage with built-in CDN
• Realtime — subscribe to Postgres changes with WebSockets
• Edge Functions — Deno-powered serverless functions deployed globally
• Auto-generated APIs — PostgREST generates REST and GraphQL APIs from your schema
• Full dashboard, CLI, and client libraries for JavaScript, Python, Flutter, and more

Supabase is fully open source and self-hostable. The cloud platform offers a generous Free tier, with Pro at $25/month and Team plans for larger organizations.