supabase/supabase
The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
Supabase is an open-source backend platform built on Postgres. It provides a dedicated database, authentication, file storage, realtime subscriptions, and edge functions -- everything you need to build web, mobile, and AI applications without managing infrastructure.
Our Review
Launched in 2020 by Paul Copplestone and Ant Wilson, Supabase crossed 100,000 GitHub stars by solving a tension that had been building in the developer community: teams wanted Firebase's speed of backend setup, but resented proprietary NoSQL lock-in and the opaque pricing that came with it. Supabase rebuilt the same instant-backend experience on Postgres -- a relational database that teams can query directly, self-host, or export from without restructuring their data model.
Key capabilities
- •Postgres database: every project gets a dedicated Postgres instance with full SQL access, row-level security, and pgvector for AI embeddings
- •Authentication: built-in auth with email/password, magic links, OAuth providers (Google, GitHub, Apple), and MFA out of the box
- •Realtime: Postgres changes broadcast to connected clients via websockets -- no polling, no separate pub/sub service needed
- •Storage: S3-compatible object storage with access policies tied to your database row-level security rules
- •Edge functions: serverless TypeScript functions on the Deno runtime deployed globally for low-latency compute
- •pgvector + AI: native vector similarity search via pgvector makes Supabase a natural fit for RAG pipelines and AI apps
Getting started
Free tier includes 500MB database, 1GB storage, and 50,000 monthly active users. Local development uses the Supabase CLI which spins up the full stack via Docker. Production projects deploy to Supabase's managed cloud or self-host on your own infrastructure.
Limitation
Supabase is built on Postgres, so NoSQL-style flexible schemas aren't a natural fit. The free tier pauses inactive projects after one week. For teams needing enterprise-grade SLAs, dedicated support contracts, or compliance certifications (SOC 2, HIPAA), the Pro or Enterprise plans are required.
Our Verdict
Supabase is the strongest open-source Firebase alternative available in 2026. It makes Postgres accessible to frontend developers who want a managed backend without giving up relational integrity, SQL power, or the ability to self-host. The combination of auth, realtime, storage, and edge functions in one platform eliminates the need to stitch together five separate services.
For AI applications in particular, the native pgvector integration makes Supabase a compelling choice. You can store embeddings, run similarity searches, and manage user data in the same database -- no separate vector store required.
The main caveat is operational maturity at scale. Free-tier project pausing and the relative youth of some features (like edge functions) mean production teams should evaluate Pro plan costs and SLA commitments before committing. Teams that are willing to pay for reliability get a genuinely excellent Postgres-native backend in 2026.
Frequently Asked Questions
What is Supabase and how does it compare to Firebase?
Supabase is a Postgres-based backend platform offering auth, storage, realtime, and edge functions. Unlike Firebase (which uses NoSQL Firestore), Supabase gives you a real relational database with full SQL access. You get row-level security, foreign keys, joins, and pgvector for AI -- features Firebase cannot provide out of the box.
Is Supabase free to use?
Yes. The free tier includes 500MB database storage, 1GB file storage, 50,000 monthly active users, and 2 projects. The main limitation is that free projects pause after 1 week of inactivity. The Pro plan at $25/month removes pausing and raises all limits significantly for teams building production apps in 2026.
Can I use Supabase for AI applications?
Supabase is well-suited for AI apps via its pgvector extension. You can store vector embeddings alongside relational data, run similarity searches with L2 or cosine distance, and build retrieval-augmented generation (RAG) pipelines entirely within Postgres. No separate vector database is required, which simplifies your architecture considerably.
How does Supabase authentication work?
Supabase Auth handles email/password, passwordless magic links, phone OTP, and OAuth providers (Google, GitHub, Apple, Azure, and more) out of the box. Sessions are managed via JWTs. Row-level security policies in Postgres can reference the authenticated user's ID, making it straightforward to control data access per user.
Can I self-host Supabase?
Yes. Supabase is fully open-source and provides official Docker Compose configurations for self-hosting. You get the same Postgres, auth, storage, and realtime features on your own infrastructure. Self-hosting requires Docker knowledge and ongoing maintenance. The managed cloud is the recommended path for most teams in 2026.
What is supabase?
Supabase is an open-source backend platform built on Postgres. It provides a dedicated database, authentication, file storage, realtime subscriptions, and edge functions -- everything you need to build web, mobile, and AI applications without managing infrastructure.
How do I install supabase?
Visit the GitHub repository at https://github.com/supabase/supabase for installation instructions.
What license does supabase use?
supabase uses the Apache-2.0 license.
What are alternatives to supabase?
Explore related tools and alternatives on My AI Guide.
Open source & community-verified
Apache-2.0 licensed: free to use in any project, no strings attached. 102,742 developers have starred this, meaning the community has reviewed and trusted it.
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