VRChat has a huge creator community building tools for avatars, worlds, performance, and customization.
However, modified VRChat clients may violate VRChat’s rules and put your account at risk. This guide focuses on creator tools and safe utilities that do not modify the live game client.
The VRChat Creator Companion is the best place to start when creating avatars or worlds.
It can:
Using the Creator Companion also reduces the chance of breaking a project with incompatible SDK files.
VRChat avatars and worlds are built using Unity.
You can use Unity to:
Always use the Unity version currently supported by VRChat. Using another version can cause upload errors or unexpected problems.
Blender is a free 3D creation tool commonly used alongside Unity.
It is useful for:
Blender has a steeper learning curve than Unity, but it gives creators much more control over their models.
The official VRChat SDK connects your Unity project to VRChat.
There are separate project templates for avatars and worlds. The SDK includes validation tools that can detect many common problems before upload.
You can also use it to check your avatar’s performance rank, build size, materials, PhysBones, and other components.
The easiest way to install and update the SDK is through the Creator Companion.
ClientSim lets world creators test many VRChat features directly inside Unity.
This can make development faster because you do not need to upload a new build for every small change.
ClientSim is especially useful when testing:
A final test inside VRChat is still recommended before publishing your world.
UdonSharp allows world creators to write VRChat Udon scripts using C#-style code.
It is commonly used for:
You should only install packages from sources you trust. Review package permissions and keep backups before updating an existing project.
You may not need an external tool to improve VRChat performance.
VRChat includes settings that can:
These options are available through VRChat’s Safety and Performance settings. They can make busy worlds run much better, especially on older PCs or standalone headsets.
Tools that modify or inject code into the VRChat client can risk your account and device security.
Avoid downloads promising:
Stick with official tools, trusted Unity packages, and open-source creator utilities.
The best VRChat tools improve the creation process without changing the live client.
For most creators, the Creator Companion, Unity, Blender, the VRChat SDK, ClientSim, and UdonSharp provide everything needed to build avatars and worlds safely.
Always back up your Unity project before installing or updating community packages.
