Import the UniVRM package into your project by dragging it into the Unity Assets window or navigating to Assets > Import Package > Custom Package . Step 2: Import and Prepare the GLB Model Drag and drop your GLB file into the Unity project folder. Select the imported model asset in your Project window.
You will now see components like VRM Blend Shape Proxy and VRM Look At Head attached to the object. Fine-tune your expressions, eye-tracking limits, and spring bone colliders here.
For quick conversions where fine-tuning physics or expressions is not necessary, automated web tools offer a convenient alternative. Using Viverse or Similar Web Tools convert glb to vrm
Fill out the required (Avatar Name, Author, Version, and Usage License restrictions). Click Export to save your new VRM file. Method 2: The Quickest Way (Using Unity and UniVRM)
: There are various browser-based tools that offer "drag and drop" conversion from GLB to VRM by automatically attempting to map standard bone names (Mixamo, etc.) to the VRM specification. Key Conversion Requirements Import the UniVRM package into your project by
Download the latest zip file from GitHub (do not unzip it). Open Blender, go to Edit > Preferences > Add-ons .
Once the add-on is installed, a "VRM" tab appears in the Sidebar ( You will now see components like VRM Blend
If you need to convert hundreds of GLB files to VRM daily (e.g., for a generative AI avatar store), you need gltf-to-vrm (Node.js) or UniVRM 's command line tools.
The conversion can be done through several methods depending on your technical comfort level. Method 1: The Blender Add-on (Recommended for Beginners)
The key to successful conversion lies in starting with a well-prepared model—one that is correctly rigged, posed in a T‑Pose, and equipped with clean textures and materials. By following the step-by-step guides, best practices, and troubleshooting advice in this article, you'll be able to transform your GLB files into VRM avatars that work seamlessly across multiple platforms.
You have a VRM file. Is it broken? You must validate it.