Manage Dynos in VS Code

Last updated March 05, 2025

Manage your Heroku app’s dynos with the Heroku VS Code extension. Use the Heroku extension to scale your app and monitor and manage individual dynos.

Scale Your App

To change the number of dynos running your app:

Open the Heroku extension in the Activity Bar.
Select the app in the Heroku Resource Explorer.
Right-click on your dyno formation.
Select Change dyno count.
Enter the desired number of dynos. Valid dyno ranges are enforced based on your account limits.

We recommend you scale dynos during low-traffic periods to minimize service interruption and maintain dyno counts based on your app’s needs.

You can restart, stop, and monitor dynos from the Heroku VS Code extension.

You can monitor real-time status information for an app’s dynos in the Heroku Resource Explorer under DYNOS:

Running (green circle): Dyno is operating normally.
Starting or Restarting (yellow circle): Dyno is starting or restarting.
Crashed or Stopped (red circle): Dyno has stopped or crashed and requires attention.

Monitor dyno status in Heroku Resource Explorer

We recommend monitoring dyno status regularly.

Restarting a dyno causes a brief interruption in service for that instance.

Right-click on the dyno you want to restart in the Heroku Resource Explorer.
Select Restart.

Stopping a dyno causes an interruption in service for that instance.

The dyno shuts down and its status updates accordingly.

Changing dyno sizes triggers a restart of the affected dynos.

To modify your dyno’s compute resources:

Change dyno sizes in Heroku Resource Explorer

You may encounter errors when working with dynos:

If scaling operations fail, verify your account limits and available resources.
If a dyno crashes, check your app logs for detailed error information.
If a dyno’s status appears stuck, try refreshing the Heroku Resource Explorer.