MongoDB provides several ways to create databases and collections for your Atlas clusters. You can create databases and collections in the following ways;

  • Directly from the Atlas UI with the Data Explorer

  • Connecting to your cluster via the mongo shell and using MongoDB CRUD operations

  • Connecting to your cluster via an application with a MongoDB driver

  • Connecting to your cluster via the MongoDB Compass tool


1. To create databases and collections directly from the Atlas UI with the Data Explorer

  • Click COLLECTIONS on your clusters view

  • Hit “+ Create Database” and enter the database and collection names

  • Insert documents from the Atlas UI with the INSERT DOCUMENT button to add to your collection

2. To connect to your cluster via the Mongo Shell using MongoDB CRUD operations

  • Click CONNECT on your clusters view and Download and install the mongo shell

  • Select “Connect with the Mongo Shell” and Copy the connection URL

  • Paste the URL into your command line, connecting to your cluster and automatically creating a test database

  • Inserting a document with db.collection.insertOne() command automatically creates a new collection or adds a document to an existing collection

3. To connect your application to your cluster via a MongoDB driver 

  • Click CONNECT on your clusters view

  • Select “Connect your Application” and Copy the connection string

  • Paste the connection string into your application and connect to your cluster to automatically create a test database

  • Inserting a Document from for your application via a MongoDB Driver automatically creates a new collection or adds a document to an existing collection

4. To connect to your cluster via MongoDB Compass 

  • Click CONNECT on your clusters view

  • Select “Connect with MongoDB Compass” and Copy the connection URL to the clipboard

  • Open Compass and allow the fields to be populated from the clipboard

  • Hit CREATE DATABASE to create databases and collections and INSERT DOCUMENT to insert documents from the Compass UI


Note: Before connecting to your Atlas cluster, please ensure you add your IP whitelist entry to your project's IP whitelist and configure your MongoDB user with access to the desired database(s) on the cluster.

To troubleshoot connection issues, see Troubleshooting Connection Issues.

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