Introduction | Notion

A reactive backend platform.

Similar as Firebase (NoSQL) + Supabase + Serverless Functions
Convex built its own db + reactive execution engine. (No need extra web socket)
Convex functions run in Convex's cloud environment.

Layer	Convex Feature
Database	built-in document database
Backend API	server functions
Realtime	automatic subscriptions
Transactions	atomic writes
Auth	integrated auth system
• Google
• GitHub
• Auth0
• custom JWT

Convex is weaker for:

complex relational queries
heavy SQL analytics
existing Postgres systems

Convex vs Supabase

Supabase advantages:

Advantage	Reason
SQL	powerful queries
Postgres ecosystem	massive
analytics	easier
migrations	mature

Convex advantages:

Advantage	Reason
simpler backend	TS functions
automatic realtime	no subscriptions
reactive model	easier UI sync