<!--
{
  "availability" : [
    "macOS: 10.10.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "FinderSync",
  "identifier" : "/documentation/FinderSync/FIFinderSync-swift.class",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "Finder Sync"
    ],
    "preciseIdentifier" : "c:objc(cs)FIFinderSync"
  },
  "title" : "FIFinderSync"
}
-->

# FIFinderSync

A type to subclass to add badges, custom shortcut menus, and toolbar buttons to the Finder.

```
class FIFinderSync
```

## Overview

Subclass the FIFinderSync class when you want to customize the appearance of
the Finder. Although the FIFinderSync class doesn’t provide any developer
accessible API, it does adopt the [`FIFinderSyncProtocol`](/documentation/FinderSync/FIFinderSyncProtocol)
protocol. This protocol declares methods you can implement to modify the
appearance of the Finder. For more information on these methods, see
[`FIFinderSyncProtocol`](/documentation/FinderSync/FIFinderSyncProtocol). To learn more about creating a Finder Sync
extension, see 
[Finder
Sync](https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/Finder.html#//apple_ref/doc/uid/TP40014214-CH15)
in 
[App Extension Programming
Guide](https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/index.html#//apple_ref/doc/uid/TP40014214).

## See Also

[`FIFinderSyncProtocol`](/documentation/FinderSync/FIFinderSyncProtocol)

The group of methods to implement for modifying the Finder user interface to express file synchronization status and control.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)