docs/versioned_docs/version-2.0.0/release-management/multi-env.md
ToolJet's multi-environment helps in streamlining workflows, thereby minimizing the chances of errors, and enables effective application management. Using multi-environment ensures that your ToolJet application is rigorously tested before it is made available to users.
<div style={{textAlign: 'center'}}> </div>ToolJet comes with three default environments:
For switching the environment, click on the Environment Manager on the navbar of app-builder to open the dropdown and select a environment.
The datasource credentials are required to be entered specifically for every environment.
:::tip Best Practice Make your default environment the Production environment - the environment in which the users use the final versions of your developed applications. This will help ensure that the production environment has access to all of the data sources. :::