Software basics · Beginner

Add-on

An optional extra you install to give a 3D app new tools

Also called Plugin, Extension

What is an add-on in 3D software?

An add-on is an optional extra you install into a 3D app to give it new tools, menus or connections to other services. Other apps call them plugins or extensions. In Blender, most add-ons are small Python programs, and you manage them in the Preferences window.

Think of it like this

It is like an app on your phone: the phone works without it, but installing one adds a new ability you can remove later.

Where it fits in a 3D project

  1. Create
  2. Surface
  3. Rig
  4. Animate
  5. Render
  6. Export

Create: Building the shape: modeling, sculpting, scanning or generating it.

How an add-on works

  1. 01You download the add-on, or find it in the app’s built-in extensions list.
  2. 02You install it from the app’s preferences or settings window.
  3. 03You enable it, and its tools appear in a menu, panel or sidebar.
  4. 04You update or disable it there when you no longer need it.

Where an add-on is used

  • Extra modeling, retopology or UV tools
  • Importing and exporting more file formats
  • Connecting a 3D app to an online service
  • Automating repeated steps in a project

Beginner tip

Install add-ons only from the developer’s own site or the app’s official extensions list. An add-on runs code on your computer, so treat it like any other software you install.

Add-on in Morphic

Morphic for Blender is a free add-on for Blender 4.2 and later, installed from Morphic’s own extension repository. It adds a Morphic tab to the viewport sidebar with Chat, Image, Video and 3D tabs, and each button shows the credit price before anything is charged.

See Morphic for Blender

Terms related to an add-on

Add-on FAQ

How do I install an add-on in Blender?
Open Edit > Preferences. For add-ons on the official list, go to Get Extensions, search and click Install. For a downloaded .zip file, choose Install from Disk in the drop-down menu at the top right of the Add-ons section, then make sure it is enabled.
Add-on vs plugin: is there a difference?
No real difference. Both mean an optional extra that adds features to an app. Blender says add-on, and since version 4.2 also extension; many other apps say plugin.
Are Blender add-ons safe?
Most are, but an add-on can run any code on your computer. Install from the official extensions platform or a developer you trust, and keep your add-ons updated.
Do add-ons slow down a 3D app?
A few can, especially ones that run in the background or load at startup. If the app feels slow or crashes, disable recent add-ons one at a time to find the cause.

Updated October 29, 2026 · Browse all 3D terms