VRCFury — Non-Destructive VRChat Avatar Tools for Unity

VRCFury is a free, open-source Unity plugin that gives VRChat avatar creators non-destructive tools — clothing attachment, toggles, gestures and controller merging that never touch your original files.

What Non-Destructive Means Here

This is the entire point, and it is worth understanding properly.

Normally, adding clothing or accessories to a VRChat avatar means editing the avatar itself — reparenting bones, merging animator layers, hand-editing menus and parameter lists. Move the wrong bone and you break animations you set up weeks ago. There is no undo once you have saved.

VRCFury works differently. It does its work just before upload, making a copy of your setup, applying the requested features, and shipping that. Your animation controllers are never modified. Remove VRCFury and your next upload is exactly as it was before.

What It Does

• Armature Link — attach rigged clothing by matching bone names, no manual reparenting
• Toggles — add a menu item and the FX layer behind it in one step
• Full Controller merging — combine FX controllers, menus and parameter lists from separate accessories
• Gesture handling and blendshape optimisation for VRAM
• Automatic clip rewriting — animation clips written from a prefab root are rewritten to work wherever the prefab lands in the hierarchy

Why It Changed Avatar Distribution

The clip-rewriting feature is quietly the biggest deal. Before it, distributing an avatar accessory meant writing installation instructions along the lines of “copy my layers into your FX controller.” Users broke their avatars following them.

With VRCFury, a creator ships a prefab. The user drops it in and uploads. That is why so much of the paid and free accessory market now assumes VRCFury is installed.

Compatibility

It works with avatars that already have animations — existing layers, parameters and menus stay untouched — and it does not clobber other tools. It handles controllers with Write Defaults either on or off.

Worth Knowing

It is a Unity plugin, not a modelling tool. Your avatar still has to be built, rigged and weighted somewhere else — usually Blender. For fitting clothing weights to a body before it reaches Unity, see Robust Weight Transfer.

Price: Free / open source · Software: Unity (VRChat SDK3)

Full pipeline in our VRChat avatar guide, and see why your performance rank is poor.