1
Supabase Free tier Open Source

Open-source Firebase alternative providing a Postgres database, authentication, storage, and edge functions.

Free for 2 projects, pauses after inactivity · Paid from $25/mo Developers who want a full backend with Postgres at the core
Postgres Auth Storage Realtime
2

Serverless MySQL platform with branching, non-blocking schema changes, and unlimited scalability.

Paid from $39/mo Teams running MySQL at scale who need safe schema migrations
Database Branching Schema Migrations Auto-scaling Query Insights
3
Neon Free tier Open Source

Serverless Postgres with autoscaling, branching, and a generous free tier for modern applications.

Free tier with 0.5 GB storage and 190 compute hours · Paid from $19/mo Developers who want serverless Postgres with branching and scale-to-zero
Serverless Postgres Branching Scale-to-Zero Autoscaling
4
Firebase Free tier

Google's app development platform providing a realtime database, authentication, hosting, and cloud functions.

Free Spark plan with generous limits · Paid from Pay as you go Mobile and web apps that need realtime sync and fast prototyping
Firestore Auth Cloud Functions Hosting
5
Xata Free tier

Serverless database platform with full-text search, analytics, and file attachments on Postgres.

Free 15 GB · Free Developers wanting a serverless database with search built-in
Full-Text Search Analytics Branching File Attachments
6
Turso Free tier Open Source

Edge-hosted distributed database built on libSQL (SQLite fork) for ultra-low latency reads.

Free 9 GB total storage · Free Developers wanting SQLite at the edge
Edge SQLite Embedded Replicas Branching Multi-Region

Quick comparison: Airtable vs Supabase

Feature Airtable Supabase
Starting price Free $25/mo

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