| Plan availability | All plan types |
| Required permissions | Owner or Creator permissions are required to perform the actions outlined in this article |
| Platform(s) | Web/Browser, Mac app, and Windows app |
Creating custom extensions overview
Use the Airtable SDK to create real-time, interactive extensions that live in Airtable. You can create your extension in your own development environment and import your npm packages.
Recommended custom extensions creation resources
Creating custom extensions
Open your Airtable home screen.
Create or open the base where you want to install the contact import extension.
Click Tools in the upper-right corner.
Click the Extensions option.
Click Add an extension.
Click + Build a custom extension.