Fauna vs Supabase

Side-by-side — pricing, strengths, tradeoffs, and fit.

Fauna

The data API for modern applications

Supabase

The open-source Firebase alternative with Postgres

At a glance

Free Tier
· Not enough data·From Freemium
Open SourceFree TierEnterprise
● Established·From Freemium

Overview

One-liner

The data API for modern applications

One-liner

The open-source Firebase alternative with Postgres

Maturity

Not enough data

Maturity

Established

Open source

✕ No

Open source

✓ Yes

Pricing

Free tier

✓ Available

Free tier

✓ Available

Starts at

Freemium

Starts at

Freemium

Model

Hybrid

Model

Hybrid

Enterprise

✕ None

Enterprise

✓ Available

Best for

✓ Best for

Serverless and Jamstack apps needing a flexible, globally consistent database without managing replication

✓ Best for

Startup founders and indie developers who need a complete backend-as-a-service with auth, database, and storage in one place
Teams moving from Firebase who want a relational database with a generous free tier
Developers who want to self-host their database infrastructure while keeping a familiar UI

Not ideal for

✕ Not for

Teams that prefer SQL or need heavy analytical query capabilities

✕ Not for

Teams needing a horizontally sharded database for massive write throughput
Enterprises requiring SOC 2 on the free plan without upgrading to a paid tier

Strengths

↑ Strengths

FQL query language
Document-relational
ACID transactions
Global distribution

↑ Strengths

Postgres database
Authentication
Auto-generated REST and GraphQL APIs
Realtime subscriptions

Weaknesses

↓ Weaknesses

—

↓ Weaknesses

Free tier projects are automatically paused after one week of inactivity, limiting continuous availability for hobby projects.
Custom SMTP integration for authentication emails fails with Microsoft Office 365 and Outlook, breaking standard email workflows.
The Supabase Node.js client causes ESM handling issues that break Vitest testing environments.
Extension version pinning is deprecated, forcing users to accept default versions and ignoring explicit version specifications.
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