How to Change a Folder Icon on Mac

Twenty identical blue folders is a filing system only a computer could love. macOS lets you paste any image onto any folder (or file, or drive) as a custom icon — no apps, no hacks, and completely reversible with a single keypress. The whole mechanism runs through the Get Info window's clipboard support.

Paste an image onto a folder

1. Open the image you want to use in Preview — a PNG with transparency looks best, but any image works.
2. Choose Edit → Select All (Cmd+A), then Edit → Copy (Cmd+C). The pixels are now on the clipboard.
3. In Finder, select the target folder and press Cmd+I to open Get Info.
4. Click the small folder icon in the top-left corner of the Get Info window — not the big preview lower down. A subtle highlight ring appears around it when selected.
5. Press Cmd+V. The custom icon appears immediately, in Finder, in the Dock, and in Open/Save dialogs.

The image is scaled to icon sizes automatically. Square images work best; anything else gets letterboxed into the square. If you paste and nothing happens, the usual cause is clicking the icon without seeing the highlight, or having a file path on the clipboard instead of actual image data — copy from inside Preview, not by copying the image file in Finder.

Borrow the icon from another folder or app

Want to reuse an icon that already exists on your Mac — another folder's custom icon, or an app's?

1. Select the item whose icon you want and press Cmd+I.
2. Click the small icon at the top-left and press Cmd+C.
3. Open Get Info on the destination folder, click its small icon, and press Cmd+V.

This copies the full multi-resolution icon rather than a flat image, so it stays crisp at every size. It is the cleanest way to give project folders their app's icon — a folder of Logic sessions wearing the Logic icon reads instantly in a crowded Documents directory.

Restore the default icon

Reverting is one key: open Get Info on the folder, click the small icon at the top-left, and press Delete (Backspace). The standard blue folder returns instantly. Under the hood, macOS stores the custom art in a hidden Icon? file inside the folder plus a metadata flag, and Delete simply removes them — nothing about your files is touched either way.

Limits worth knowing

• Permissions: you need write access to the item. System folders and the folders of other user accounts will refuse, as will most apps in /Applications on modern macOS — apps are code-signed, and Sonoma and Sequoia protect their icons. Make an alias of the app and customize the alias instead.
• Portability: custom icons travel with the folder on Mac-formatted disks and in most zips, but cloud sync services and non-Mac file systems often strip them.
• Emoji trick: for quick color-coding without hunting for images, type an emoji at huge point size in a Preview-annotated blank image and paste that — or simpler still, use Finder tags for color and keep icons for the folders that matter.

Doing this to apps?

App icons involve code signing and a couple of extra wrinkles. Read changing app icons on Mac before you start, especially for apps from the App Store.