Cloud Database Platform

Supabase Review 2026: Best Open Source Firebase Alternative?

By CloudPicked Review Team • Last updated: October 2026

What is Supabase?

Supabase is an open source Firebase alternative that provides a backend-as-a-service platform built on PostgreSQL. Founded in 2020, it has grown rapidly to serve over 1 million developers worldwide.

What sets Supabase apart is its PostgreSQL foundation — an industry-standard relational database. Unlike Firebase, which uses Firestore (NoSQL), Supabase lets developers who already know SQL get started immediately without learning a new query language.

Every Supabase project gets a dedicated PostgreSQL database, not shared infrastructure, along with auto-generated REST and GraphQL APIs, realtime subscriptions, a full auth system, S3-compatible file storage, and edge functions.

Critically — Supabase is 100% open source. You can self-host the entire platform on your own VPS via Docker, eliminating any risk of vendor lock-in.

Core Features of Supabase

Supabase bundles six core products, but you only pay for what you use — unused products cost nothing:

1. Database (PostgreSQL)

Every project gets a dedicated PostgreSQL database with:

• Visual Table Editor and SQL Editor in the Dashboard
• Auto-generated REST API via PostgREST
• Auto-generated GraphQL API via pg_graphql
• Row Level Security (RLS) for fine-grained authorization
• 40+ preinstalled extensions including pgvector for AI/embeddings
• Database Branching for CI/CD workflows
• PgBouncer connection pooling

2. Authentication

Full-featured auth supporting 20+ social providers:

• Email/Password, Magic Link, Phone/OTP
• OAuth: Google, GitHub, Facebook, Twitter, Discord, Apple and 15+ more
• SAML/SSO (Enterprise add-on)
• Multi-factor Authentication (TOTP)
• Standard JWT tokens

3. Storage (Object Storage)

S3-compatible object storage with a global CDN spanning 285+ cities:

• Three bucket types: files, analytics (Apache Iceberg), and vector
• On-the-fly image transformations (resize, crop, format)
• Row Level Security policies work for storage as well

4. Edge Functions

Globally distributed serverless functions:

• TypeScript/JavaScript on Deno runtime
• Node.js compatibility layer
• Access to 2M+ NPM modules
• Built-in observability and logging

5. Realtime

WebSocket-based sync for live applications:

• Database Change Listeners — subscribe to row-level changes
• Presence — track user online/offline state
• Broadcast — arbitrary message passing between clients

6. Vector / AI Toolkit

pgvector support for AI-native applications:

• Store vector embeddings directly in PostgreSQL
• ANN (Approximate Nearest Neighbor) similarity search
• Combine transactional and vector data in a single query

Supabase Pricing 2026

Supabase offers four plan tiers. The following data is sourced from supabase.com/pricing as of October 2026 — please verify current pricing on the provider's website before making a decision.

Plan	Price/month	Database	MAU	Egress	File Storage
Free	$0	500 MB	50,000	5 GB	1 GB
Pro	from $25	8 GB/project	100,000	250 GB	100 GB
Team	from $599	8 GB/project	100,000	250 GB	100 GB
Enterprise	Custom	Custom	Custom	Custom	Custom

Free Plan ($0/month)

• 500 MB database size (Shared CPU, 500 MB RAM)
• 50,000 monthly active users (MAU)
• 5 GB egress + 5 GB cached egress
• 1 GB file storage
• Community support
• Max 2 active projects
• Projects pause after 1 week of inactivity

Pro Plan (from $25/month)

• 8 GB disk per project (then $0.125/GB)
• 100,000 MAU (then $0.00325/MAU)
• 250 GB egress (then $0.09/GB)
• 100 GB file storage (then $0.0213/GB)
• Email support
• Daily backups retained for 7 days
• 7-day log retention
• $10/month compute credits (covers one Micro instance)
• Projects do not pause

Team Plan (from $599/month)

• SOC2 Type 2 + ISO 27001 compliance
• Project-scoped and read-only access controls
• HIPAA available as a paid add-on
• SSO for the Supabase Dashboard
• Priority email support with SLAs
• Daily backups retained for 14 days
• 28-day log retention

Enterprise Plan (custom pricing)

• Technical Account Management
• Uptime SLAs
• AWS PrivateLink support
• 24×7×365 premium support + private Slack channel
• Custom Security Questionnaire support

Compute Add-Ons and Disk Storage

Each project runs on its own compute instance. Pro and Team plans include $10/month in compute credits covering one Micro instance. You can scale up as needed:

Size	$/month	CPU	RAM	Direct Conn.	Pooler Conn.
Micro	$10	Shared	1 GB	60	200
Small	$15	Shared	2 GB	90	400
Medium	$60	Shared	4 GB	120	600
Large	$110	Dedicated 2 vCPU	8 GB	160	800
XL	$210	Dedicated 4 vCPU	16 GB	240	1,000
2XL	$410	Dedicated 8 vCPU	32 GB	380	1,500
4XL	$960	Dedicated 16 vCPU	64 GB	480	3,000
8XL	$1,870	Dedicated 32 vCPU	128 GB	490	6,000

Data as of October 2026. Compute is billed hourly. Verify latest pricing at supabase.com/pricing.

Supabase vs Firebase: Detailed Comparison

The most common question is whether to choose Supabase or Firebase. Here is a factual comparison:

Criteria	Supabase	Firebase
Database type	PostgreSQL (Relational)	Firestore (NoSQL)
Open source	Yes (self-hostable)	No (proprietary)
Full SQL support	Yes	No (own query API)
Vendor lock-in risk	Low (standard Postgres)	High (Google ecosystem)
Free tier DB	500 MB	1 GB (Firestore)
Auth providers	20+	12+
Realtime	Yes (Postgres changes)	Yes (Firestore streams)
Serverless functions	Edge Functions (Deno/TS)	Cloud Functions (Node.js)
Vector/AI support	Yes (pgvector)	Limited
Pricing model	Transparent ($25/mo Pro)	Pay-as-you-go (unpredictable)
Compliance (SOC2)	Team plan+	All plans
Global regions	16+	Multi-region via GCP

The short version: if you know SQL, Supabase will feel immediately natural. If you need deep Google ecosystem integration or truly schema-less NoSQL, Firebase may still have an edge.

Pros and Cons of Supabase

Who is Supabase For?

Supabase is the best fit for:

• Developers who know SQL — no need to learn a new NoSQL query API
• Startups and side projects — free tier handles small projects well
• Realtime applications — chat apps, collaboration tools, live dashboards
• AI/ML applications — needing vector search alongside relational data
• Compliance-sensitive teams — SOC2, ISO 27001, HIPAA on Team plan
• Open source advocates — wanting to avoid vendor lock-in entirely

Supabase may not be the best fit if your workload is purely schema-less NoSQL, or if your team has zero SQL experience. Firebase or MongoDB Atlas might be more comfortable in those cases.

Getting Started with Supabase

Start for free in five steps:

1. Go to supabase.com and create a free account (no credit card needed)
2. Create a new Project — choose the region closest to your users (Southeast Asia: Singapore for Thailand)
3. Create tables using the Table Editor or SQL Editor
4. Connect your app using a Supabase client library (JavaScript, Python, Kotlin, Swift, Dart, C#, and more)
5. Enable Auth, Storage, and Edge Functions as you need them

For local development, install the Supabase CLI:

npm install supabase --save-dev
npx supabase init
npx supabase start  # Runs a local Supabase instance via Docker

JavaScript Quick Start

import { createClient } from '@supabase/supabase-js'

const supabase = createClient(
  'https://your-project.supabase.co',
  'your-anon-key'
)

// Fetch data with a SQL-like query
const { data, error } = await supabase
  .from('products')
  .select('*')
  .order('created_at', { ascending: false })
  .limit(10)

Frequently Asked Questions