Supabase

Supabase is an open-source backend-as-a-service platform founded in 2020 by Paul Copplestone and Ant Wilson, headquartered in Singapore, providing a suite of backend tools built on PostgreSQL including managed databases, authentication, file storage, edge functions, and real-time subscriptions, positioned as an open-source alternative to Google Firebase while using standard SQL and relational data models, adopted by over five hundred thousand developers and companies including Mozilla, OneConcern, and Poppins. The PostgreSQL database is the core service, providing full SQL access to every Supabase project, with the free tier offering five hundred megabytes of storage and paid tiers scaling to dedicated instances, automatic point-in-time backups, read replicas, branch-based development databases, and SQL editor with query history, saved snippets, and visualization tools. The authentication system provides email, password, magic link, and social OAuth login with providers including Google, GitHub, Apple, Facebook, Twitter, and Azure, JWT-based session management, row-level security policies integrated with PostgreSQL roles, multi-factor authentication, and server-side rendering support for Next.js, SvelteKit, and Remix. The storage service provides S3-compatible file upload with CDN delivery, image transformation and resizing, resumable uploads for large files, and access control through database policies. The real-time engine leverages PostgreSQL logical replication to broadcast database changes over WebSocket, enabling live dashboards, chat applications, and collaborative editing features without custom infrastructure. The edge functions run Deno-based TypeScript serverless functions globally. The vector embeddings support enables AI similarity search. Designed for frontend developers, full-stack teams, and startups.