Ephemeral Instances
less than a minute
LocalStack's Snowflake emulator is currently in preview mode. We will be launching our general availability product for purchase on May 13th, 2025. Interested in learning more? Visit our site.
Note: Version 0.3.0 and beyond are only available to customers who have been granted a Snowflake license from LocalStack. If you accessed Snowflake via your AWS Emulator without a Snowflake license in prior versions, please reach out to us here.
Introduction
Ephemeral Instances allows you to run a LocalStack for Snowflake instance in the cloud. You can interact with these instances by configuring your Snowflake host with the endpoint URL of the ephemeral instance.
Note
Ephemeral Instances is offered as a preview feature and under active development.Getting started
Navigate to the LocalStack Ephemeral Instance Management page. In the form, enter the name of the new Ephemeral Instance, choose LocalStack Snowflake (preview), select the lifetime of the instance by dragging the slider, and click on Launch.

After the ephemeral instance is created, you can run the following command to verify the status of the instance:
$ export SNOWFLAKE_HOST=<ephemeral-instance-endpoint>
$ curl -d '{}' $SNOWFLAKE_HOST/session
You can access the Ephemeral Instance via the SnowSQL or any alternative SQL client by configuring the Snowflake host with the endpoint URL of the Ephemeral Instance.