In Roblox Studio, the usual way to import a character is through the Avatar tab and the 3D Importer. Select your .fbx or .gltf file, set the rig scale, then click Import ; the model should appear in your workspace with textures applied or ready to fix manually if needed.

If you mean a player avatar

If you want to bring in a specific player’s character, one common method is to use a plugin or script that creates a humanoid model from a user ID. Roblox community examples mention entering a username or BundleId and choosing R6 or R15 before inserting the character into the workspace.

Fast Studio method

For your own character in a test place, some creators simply start a play session, copy their live character from Workspace, and paste it back into Studio. A tutorial example also mentions using a character loader plugin to insert another user’s avatar by name.

What to use

  • Your own model file: Use Roblox’s 3D Importer in the Avatar tab.
  • A Roblox avatar by username/user ID: Use a character loader plugin or a script-based approach.
  • An in-game test copy of yourself: Copy your character during play test and paste it into Workspace.

Common issues

If textures do not load correctly, Roblox documentation says you can import them separately through Asset Manager and attach them to the imported mesh or surface appearance. If you’re importing someone else’s avatar, make sure you pick the correct rig type, since choosing the wrong one can make the model look broken or fail to insert properly.

Example

A simple workflow for a custom imported character is: prepare the rigged file, open Roblox Studio, go to Avatar , launch 3D Importer , choose the file, validate the rig, and import it into the project.

TL;DR: If you mean a model file, use Roblox Studio’s 3D Importer. If you mean a Roblox avatar, use a character loader plugin or a user-ID-based insert method.