Use Withdata DBToMongo as SQL Server to MongoDB Copier (Converter / Transferor).
Works GREAT in 2025.
Support Windows, Linux, and macOS.
Support all MongoDB deployment types: standalone, replica set, sharded cluster, and MongoDB Atlas.
Can run in GUI mode, Step by Step, just a few mouse clicks.
Can run in CLI (Command Line Interface), for Scheduled Tasks and Streams, for Automation.
Start Withdata DBToMongo.
Login to SQL Server.

Login to MongoDB.

Click "Convert From Query" at task dialog.

then show the wizard.
1. Enter source SQL Server query.

2. Choose destination MongoDB collection and config fields.

3. Set rows options.

4. Export SQL Server query results to MongoDB collection.

Click "View", See MongoDB collection data.

Click "Convert From Table" at task dialog.

then show the wizard.
1. Choose source SQL Server table.

2. Choose destination MongoDB collection and config fields.

3. Set rows options.

4. Copy SQL Server table data to MongoDB collection.

Click "View", See MongoDB collection data.

Click "Convert Similar Tables" at task dialog.

then show the wizard.
1. Select source SQL Server tables.

2. Choose a destination MongoDB collection and config fields.

3. Set rows options.

4. Copy data from SQL Server to MongoDB.

Click "View", See MongoDB collection data.

Click "Convert All Tables" at task dialog.

then show the wizard.
1. Select source tables.

2. Target collections, choice "Import Type".

3. Map SQL Server tables to MongoDB collections.

4. Summary.

5. Batch copy SQL Server data to MongoDB.

Click "View", See MongoDB collection data.

After coping SQL Server data to MongoDB in GUI, and Saving "SQL Server to MongoDB" session, then you can:
After coping SQL Server data to MongoDB in Command Line, then you can schedule and automate "SQL Server to MongoDB" conversion task by: