What connection string do we use to connect the Azure Cosmos DB Data Migration Tool to the Cosmos DB Emulator?

Use this connection string:

AccountKey=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==;Database=Library;AccountEndpoint=https://localhost:8081

Woot! Connected.

See also

Tutorial: Database migration tool for Azure Cosmos DB

Tutorial: Learn how to use the open-source Azure Cosmos DB data migration tools to import data to Azure Cosmos DB from various sources including MongoDB, SQL Server, Table storage, Amazon DynamoDB, CSV, and JSON files. CSV to JSON conversion.

deborahc Microsoft Docs

Install and develop locally with Azure Cosmos DB Emulator

Learn how to install and use the Azure Cosmos DB Emulator on Windows, Linux, macOS, and Windows docker environments. Using the emulator you can develop and test your application locally for free, without creating an Azure subscription.

StefArroyo Microsoft Docs

Cosmos DB Migration options

This doc describes the various options to migrate your on-premises or cloud data to Azure Cosmos DB

SnehaGunda Microsoft Docs