How to use the A23D Asset Importer Plugin for Unity

The A23D Asset Importer enables you to download assets directly from the A23D website into your Unity projects. It adds an A23D Bridge panel to track download and import progress, choose a custom asset folder, or import an A23D asset from disk.

Installing the plugin

Visit the Unity integration page.
Download the latest A23D Asset Importer .zip compatible with your Unity Editor.
Unzip the downloaded file. The extracted files include the A23D Asset Importer .unitypackage.
Open your Unity project.
Go to Assets > Import Package > Custom Package.
Select the extracted A23D Asset Importer .unitypackage.
In the import window, keep all the A23D package contents selected and click Import.

After import, the plugin files are added under Assets/A23D, and the A23D menu appears in the Unity Editor menu bar.

Open A23D > Asset Importer to show the dockable A23D Bridge panel. Keep the panel open or docked while importing assets from the website.

Downloading assets with one-click

Open your Unity project and keep the A23D Bridge panel open or docked.
If the panel says Connected, Unity is ready to receive assets.
On the A23D website, open the asset you want to import.
In the Software dropdown, choose Unity.
Choose the resolution you want.
Click Send to Unity.
Return to Unity. The A23D Bridge panel shows the asset as it downloads, unzips, and imports into the project.

Browser permission

When you click Send to Unity, your browser may ask to allow access to apps on your device. Click Allow so A23D can connect to the A23D Bridge in Unity. If you skipped it, open site settings for www.a23d.co, allow Apps on device, reload the page, and try again.

You can also manually add https://www.a23d.co:443 to your browser's list of allowed sites to access Apps on device. This setting can be found at:

Chrome — chrome://settings/content/loopbackNetwork
Edge — edge://settings/privacy/sitePermissions/allPermissions/loopbackNetwork
Brave — brave://settings/content/loopbackNetwork
Firefox — Settings → Privacy & Security → Permissions → Device apps and services

Safari may not always complete one-click sending because of its local app connection behavior. If that happens, use Chrome or Edge, or download the asset and use Import from disk.

Using multiple Unity editors

Only one Unity editor receives website imports at a time. If you have more than one Unity project or editor open, click Connect in the A23D Bridge panel of the editor you want to import into. That editor becomes the active receiver. Other open Unity editors will show as not connected until you click Connect in them.

Choosing a custom asset folder

In the A23D Bridge panel, open Settings and set Asset Folder if you want website downloads saved to a specific location before import.

You can type a folder path or click Browse... and choose a folder. Leave the field empty if you do not need a custom location.

Importing an asset from disk

Use Import from disk when you already have a downloaded A23D asset on your computer.

In Unity, open the A23D Bridge panel.
Click Import from disk.
Select the extracted A23D asset folder.
Confirm the selection. The plugin imports the asset into the current project.

You can also open the disk importer from A23D > Import From Disk....

Locating imported assets

Imported assets are organized under Assets/A23D in your Unity project.

3D models are imported into Assets/A23D/3D_Models.
PBR texture materials are imported into Assets/A23D/PBR_Textures.

From there, drag imported models or materials into your scene and use them in your project.

Render pipeline and material setup

The plugin builds materials for the render pipeline active in your Unity project. It supports URP, HDRP, and the Built-in Render Pipeline. For URP and HDRP projects, the plugin uses the included A23D shader graphs. For Built-in projects, it uses Unity's Standard shader fallback.

Uninstalling the plugin

Close Unity, delete the Assets/A23D folder from your project, and reopen the project.