Open-source Firebase alternative with Postgres, Auth, and Realtime
By Tanmay Verma, Founder · Last verified 13 May 2026
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Supabase is a strong alternative to Firebase for developers who prefer SQL and open source. Its generous free tier, realtime features, and Postgres ecosystem make it ideal for startups and side projects. Named alternatives include Firebase and AWS Amplify. Supabase stands out with its branching, edge functions, and vector support.
Last verified: May 2026
Supabase delivers a polished developer experience with a generous free tier that includes 500 MB database, 1 GB storage, and 50K monthly active users. The platform excels in providing instant RESTful and GraphQL APIs from your Postgres schema, realtime capabilities via websockets, and edge functions written in Deno. The free tier is limited to 2 active projects, and projects are paused after 1 week of inactivity—which can be disruptive for hobbyists. For production use, the Pro plan at $25/month adds 8 GB database, 100 GB storage, daily backups, and email support. The Team plan at $599/month adds SOC2, SSO, and priority support. Supabase integrates with popular frameworks like Next.js, React, Flutter, and Swift, and offers add-ons like Log Drains and compute upgrades. Its vector and AI integrations (OpenAI, Hugging Face) make it a strong choice for AI applications. However, it is less suited for enterprises needing dedicated compliance teams or non-Postgres databases. Overall, Supabase is a compelling open-source backend platform that should be on your shortlist if you value SQL, realtime, and rapid prototyping.
Last updated: April 2026
Skip Supabase if Skip Supabase if you need a managed non-PostgreSQL database or require phone support on a free plan.
How likely is Supabase to still be operational in 12 months? Based on 6 signals including funding, development activity, and platform risk.
Supabase provides a full backend-as-a-service built on PostgreSQL. It includes authentication, auto-generated REST and GraphQL APIs, realtime subscriptions, storage, edge functions, and vector embeddings. You get a complete Postgres database with row-level security, daily backups, and point-in-time recovery. Supabase is open source and self-hostable, making it a flexible backend for modern web and mobile apps. Trusted by fast-growing companies, it scales from passion projects to millions of users.
Concrete scenarios for the personas Supabase actually fits — and what changes day-one when you adopt it.
Create a Supabase project, set up authentication with email/password, define a 'messages' table with Row Level Security, enable Realtime on the table, and use the JavaScript client library to subscribe to changes.
Outcome: Within an hour, you have a functional chat backend with auth and real-time updates, ready to integrate with your frontend.
Create a project, design tables for users and subscriptions, set up Stripe webhooks via Edge Functions, and use PostgREST APIs to expose data with row-level security.
Outcome: You get a secure, scalable backend with minimal server management, allowing you to focus on product features.
Create a Supabase project, use the Flutter client library to implement user authentication, store user-generated content in Storage, and query data via Realtime subscriptions.
Outcome: Your app gets a full backend with minimal boilerplate, enabling rapid iteration and deployment.
Free projects are paused after 1 week of inactivity. Limited to 2 active projects on free plan. Custom domains require Pro plan. No built-in GraphQL on free tier. Log retention limited on lower tiers.
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
For each published Supabase tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0
Ideal for
Indie hackers, side projects, and simple websites with low traffic needs (under 50K MAUs and 500 MB database).
What this tier adds
Starting tier with 0 monthly cost; includes 500 MB database, 1 GB storage, and 50K MAUs, but projects are paused after 1 week of inactivity.
Pro
$25/mo
Ideal for
Production applications that need more resources and scaling capabilities (up to 100K MAUs, 8 GB database).
What this tier adds
Adds 100K MAUs, 8 GB database, 100 GB storage, daily backups (7-day retention), email support, and 7-day log retention versus Free tier.
Team
$599/mo
Ideal for
Teams requiring advanced compliance, SSO, and priority support for multiple projects.
What this tier adds
The company stage and team size where Supabase's pricing actually pencils out — and where peers do it cheaper.
Supabase's free tier is generous for side projects, while Pro at $25/mo offers strong value for startups. However, additional compute and high MAU can drive up costs. Compared to Firebase, Supabase may be cheaper for heavy database operations but more expensive for high-egress scenarios.
How long it actually takes to get something useful out of Supabase — broken out by persona, not the marketing-page minute.
For a simple project (auth + database), you can be up and running in under 30 minutes using the dashboard and client libraries. Adding edge functions or realtime may take an additional 1-2 hours. The CLI and branching feature can speed up local development.
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
Pricing, brand, ownership, or deprecation changes worth knowing before you commit. Most-recent first.
Used Supabase? Help shape our editorial sentiment research.
Last calculated: May 2026
How we score →Adds SOC2 and ISO 27001 certifications, SSO for dashboard, HIPAA as paid add-on, priority support with SLAs, 14-day backup retention, and 28-day log retention over Pro.
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