FolderIcon

Guide library

Create and use custom folder icons

These guides cover the whole task: plan a clear icon, build it in the editor, export the right file, apply it to a folder, and fix common problems. Pick the step you need now.

Updated August 10, 2026

Folder icons work best when the design and file type match the system that shows them. A Mac can use a copied PNG in Finder, while Windows asks for an ICO file in its Change Icon dialog. Linux support varies by desktop and file manager. The guides below keep those paths separate so you can follow only the steps that fit your device.

Start here

Use the full tutorial if this is your first icon. It covers each editor control and the right export choice for your system.

Design for your system

Start with artwork that fits the system where you will use the icon. These guides explain the folder base, useful design limits, and export settings for each platform.

Apply the finished icon

The downloaded file is only the artwork. Your system still needs you to assign it to the folder. Follow the steps for Finder or Windows File Explorer.

Choose files and design rules

Use these references when you have source art already, need to pick a file type, or want a set of icons that remains easy to scan.

Fix a problem

If the new image does not appear, check the file type, the selected item, the file location, system rights, and the icon cache in this order.

What FolderIcon.App does and does not do

The editor creates the image file in your browser. It can recolor the base folder, add a built-in symbol, place your PNG or SVG, add a short text label, and export PNG or ICO. It does not change folders on your device by itself. That last step must happen in Finder, Windows File Explorer, or your Linux file manager.

Your source images stay in the browser while you work. There is no account or saved online project, so keep the final download and any source art you may want to edit again.

Create the icon in your browser

No account is required, and images stay on your device.

Open FolderIcon.App