Reviewed by Harsh Desai · Last reviewed:
Supabase
Open-source Postgres backend with auth, realtime APIs, and pgvector for AI apps
Best for
Supabase is the leading open-source backend platform built on PostgreSQL, from Supabase, Inc. It ships a managed Postgres database, auto-generated REST and GraphQL APIs, built-in auth, realtime subscriptions, file storage, edge functions, and pgvector for AI apps. Apache-2.0 licensed and fully self-hostable, with a generous free tier and Pro plans from $25/month.
What Supabase does:
- •Managed PostgreSQL a full relational database with native support for joins, transactions, row-level security, triggers, and every Postgres extension you would expect.
- •Instant REST and GraphQL APIs Supabase auto-generates a complete REST API and an optional GraphQL endpoint from your schema, so frontend code can read and write data without you writing endpoints.
- •Built-in auth and identity email and password, magic links, social providers (Google, GitHub, Apple, etc.), and SAML SSO on Team plans, all with row-level security tied to the authed user.
- •Realtime subscriptions listen to row-level changes on any table over websockets, so collaborative apps and live dashboards work without a separate pubsub layer.
- •pgvector for AI apps native vector embeddings stored in Postgres for RAG, semantic search, and AI-powered features without bolting on a separate vector database.
- •Edge Functions TypeScript serverless functions deployed to global edges for lightweight glue logic close to users.
- •Database branching Git-style branches of your database so you can test schema changes safely before merging to production.
- •Supabase CLI the official CLI handles local development, schema migrations, environment management, edge function deploys, and one-command production pushes.
- •MCP support Supabase exposes a Model Context Protocol server so AI agents like Claude Code, Cursor, and Windsurf can query your schema and write migrations directly.
- •Open-source and self-hostable Apache-2.0 licensed, fully self-hostable on your own infrastructure with the same Docker image Supabase uses for hosted projects.
Pricing:
- •Free $0/mo: 50,000 MAU, 500MB database, 1GB file storage, 2 active projects (paused after 7 days of inactivity).
- •Pro from $25/mo: 100,000 MAU, 8GB database, daily backups, usage-based scaling for bandwidth and compute.
- •Team / Enterprise from $599/mo: SSO, SOC 2 compliance, priority support, custom SLAs, BYOC option for enterprise contracts.
Limitations:
- •Free projects pause after 7 days of inactivity low-traffic side projects on the free tier get auto-paused, so cold-start latency hits the next visitor after a quiet stretch.
- •Bandwidth costs scale sharply Pro overages are charged per GB transferred, so media-heavy apps with growing audiences can see Supabase bills climb faster than equivalent S3 + CDN setups.
- •Edge Functions are not a full backend the 2-second CPU limit and 20MB bundle cap mean Edge Functions are best as glue logic, not a place to run heavy business logic or long jobs.
Our Verdict
Supabase scores 8.5/10 because it is the cleanest open-source Firebase alternative on the market, and the bet on PostgreSQL pays off the moment your app grows beyond CRUD. SQL queries, real foreign keys, row-level security, native vector search, and auto-generated APIs combine into a backend stack that is genuinely production-grade rather than a prototype-only toolkit.
For the Vibe Builder, Supabase is the smoothest backend to pair with Cursor, Windsurf, or Claude Code: the schema is just SQL the AI can read, the row-level security policies are inspectable, and the MCP server lets AI agents run migrations and queries directly. The free tier is enough to ship a real product, and the $25/month Pro tier covers most early-stage SaaS apps with room to grow.
For the Developer, the open-source self-hostable option is the standout. Apache-2.0 licensing means no vendor lock-in fear, the same Docker image Supabase uses internally runs on your hardware, and the Supabase CLI handles migrations cleanly. Native pgvector is a real upgrade over bolted-on vector databases, and edge functions plus realtime subscriptions cover most modern app patterns without leaving Postgres.
Skip it if you want a TypeScript-first reactive backend with end-to-end type safety (consider Convex, which collapses database, functions, and auth into one TS-typed platform). Teams that need always-on free tier with no inactivity pause should also try a self-hosted Postgres on a $5 VPS or a Neon free tier. Heavy enterprise security requirements without a Team contract may also be cleaner on AWS RDS plus your own auth.
Related Tools
View allCompare Supabase With
Also Useful For
Frequently Asked Questions
How much does Supabase cost in 2026?
Supabase has a free tier with 50,000 monthly active users, 500MB database, and 1GB file storage. Pro plans start at $25/month with usage-based scaling. Team plans begin at $599/month with SSO and SOC 2 compliance. Enterprise pricing is custom. Supabase, Inc. publishes the full pricing breakdown on the supabase.com pricing page.
Supabase vs Firebase: which should I pick?
Choose Supabase when you want PostgreSQL, SQL queries, no vendor lock-in, and the option to self-host. Choose Firebase when you prefer a deeply integrated Google ecosystem and a NoSQL document model. In 2026, Supabase wins on data portability and SQL flexibility, while Firebase wins on tight Google Cloud integration and mobile SDK maturity.
Is Supabase open source and self-hostable?
Yes. Supabase is open-source under the Apache 2.0 licence and fully self-hostable using the same Docker image Supabase, Inc. runs in production. You can deploy the entire stack -- Postgres, GoTrue auth, PostgREST API, Realtime, Storage -- on your own infrastructure for compliance, data residency, or cost control.
Does Supabase support AI applications?
Yes. Supabase ships native pgvector support, so vector embeddings live in the same Postgres database as the rest of your data. This makes Supabase a strong default for RAG workflows, semantic search, and AI-powered features without bolting on a separate vector database. The 2026 docs include reference patterns for OpenAI, Anthropic, and open-source embedding models.
What is Supabase database branching?
Database branching gives you isolated, Git-style branches of your Postgres database. You can test schema changes, run experiments, and review migrations on a branch without touching production data. When the branch passes review, merging applies the schema to production with no downtime. The feature is available on Pro and higher plans.
Is Supabase free?
Yes, Supabase offers a free version. Paid plans start at $25/month.
Who should use Supabase?
Supabase is built for vibe builders who want AI to handle the technical work and developers looking to accelerate their workflow. Common use cases include saas-backend, ai-app-backend, realtime-apps, auth-and-identity, rag-and-vector-search.
What are the best alternatives to Supabase?
Popular alternatives to Supabase include Convex, Vercel, Firecrawl, Openrouter. Compare features and pricing in our Data & Infrastructure directory to compare options.
Affiliate link: we may earn a commission. How this works.
Supabase
Free tier available