An add-in is a collection of ArcGIS Pro customizations that is packaged in a single compressed file (.esriAddInX). Add-ins are configured and managed in ArcGIS Pro with the Add-In Manager.
You can share add-ins easily because they do not require an additional installation program. You can add add-ins to your machine from a shared network location by double-clicking the file in Windows File Explorer or by manually copying the file to a well-known folder. Add-ins can also be shared by email or from a portal.
Add-ins are developed with the ArcGIS Pro SDK 2.6 for the Microsoft .NET Framework. Visit the ArcGIS for Developers site to build your first add-in.
Validate and copy an add-in
Before you install an add-in, it must be validated. Validation ensures that the file is copied to the appropriate location and that there are no name conflicts. It also guarantees that an existing version of the add-in is not overwritten by an older version.
- Locate the add-in on your computer or shared network drive.
You may browse to its location using Windows File Explorer, open it from an email attachment, or download it from a portal.
- Double-click the add-in.
The Esri ArcGIS Add-In Installation Utility opens.
- On the Esri ArcGIS Add-In Installation Utility, review the author, description, version, and digital signature information of the add-in.
- Click Install Add-In.
The add-in is validated and copied to a well-known folder for use in ArcGIS Pro.
A well-known folder is a location where the Esri ArcGIS Add-In Installation Utility and the Add-In Manager look for add-ins. For more information and customization options, see Add-in Manager options below.
Once an add-in has been validated and installed, you can view it in the Add-In Manager and use it in ArcGIS Pro. To open the Add-In Manager options, follow these steps:
- From an open project, click the Project tab on the ribbon. Alternatively, on the ArcGIS Pro start page, click Settings in the lower left corner.
- In the list on the left, click Add-In Manager.
When you open the Add-In Manager page, ArcGIS Pro searches specified well-known folders for add-in files. After the files are located, they are installed and appear on the Add-Ins tab of the Add-In Manager. The Add-Ins tab provides information about available add-ins.
Delete an add-in
You can delete local add-ins from the Add-In Manager. Deleting an add-in moves the file from its system folder to the system recycle bin. Shared add-ins are listed under Shared Add-ins and cannot be deleted through the Add-In Manager.
- On the Add-In Manager, ensure that the Add-Ins tab is selected. Under My Add-Ins, click the add-in you want to delete.
Information about the add-in is displayed.
- In the lower right corner of the screen, click Delete this Add-In.
The add-in is marked with a message that it has been deleted. It is still visible in the Add-In Manager and is available in the current ArcGIS Pro session.
- Close and reopen ArcGIS Pro.
The add-in is removed from the list in the Add-In Manager and is no longer available.
Add-in Manager options
On the Options tab of the Add-In Manager, you can view your well-known add-in folders and specify additional well-known folders. ArcGIS Pro searches these folders for add-ins each time you start the application. This option is useful if you use a network location to share add-ins within your organization.
It is recommended that you specify well-known folders at the lowest (most nested) level possible. Specifying high-level folders on shared network drives may cause performance problems.
On the Options tab, you can also set security options for loading add-ins. These settings will be applied to all folders where ArcGIS Pro searches for add-ins. The default is Load all Add-Ins without restriction (Least Secure). You can choose to require add-ins to be digitally signed by a trusted publisher or load only Esri-provided add-ins (the most secure option).
Add-ins extend ArcGIS Pro with custom code. This creates a risk that the application may behave in unexpected ways or stop working. As a troubleshooting step, you can temporarily disable all add-ins by running ArcGIS Pro from the Windows command prompt with a special parameter.
Run the following from a command line to start ArcGIS Pro without add-ins:
If a problem is resolved when add-ins are disabled, it indicates that the problem is caused by an add-in located in a well-known folder on your machine or on a shared network.