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MongoDB is a document database. Use as a secondary store when you have existing MongoDB data or need specific features (geospatial queries, complex aggregation pipelines).
For new apps, prefer Convex. MongoDB integration is for connecting to existing databases.

Setup

MONGODB_URI in vly secrets. Use the official MongoDB driver from a Convex action.

Convex overview

Default backend.

Supabase

Postgres alternative.

BigQuery

For analytics workloads.
Last modified on April 18, 2026