Udon Documentation

Browse UdonSharp scripts, reusable Udon systems, official VRChat Udon references, networking guidance, persistence notes, and beginner-friendly world scripting examples.

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Find scripts, guides, prefabs, and systems.

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Start Points

Udon paths

01 Beginner Examples Small UdonSharp scripts and first interaction patterns. 02 Local Interactions Buttons, teleport pads, local UI, and object toggles. 03 Networking Events, synced variables, ownership, and late joiners. 04 Persistence Saved preferences, scores, unlocks, and player data. 05 Prefabs And Systems Reusable packages, gameplay systems, and utilities.
Nearby VRCreators Guides

VRCreators Udon guides.

First Interactive ButtonBuild one local UdonSharp interaction. Networking Decision GuidePick the right multiplayer pattern. Persistence GuidePlan saved state before implementation. ClientSim TestingCheck world behavior inside Unity first. World SetupGet the world project stable before scripting. Creator CompanionUse the supported project setup path. Prefab HubBrowse categorized reusable VRChat systems. Synced ToggleStart with a small synced state example.
Common Udon Decisions

Answer these before choosing a script.

Should I start with Udon Graph or UdonSharp?

Use UdonSharp when you are comfortable reading small C# scripts or want reusable code. Use Udon Graph when a visual node setup is enough for a small behavior.

Does this need networking?

If the result only affects one player, keep it local. If everyone needs to see the same state, decide between a network event, a synced variable, ownership transfer, or persistence.

When does ownership matter?

Ownership matters when one client is allowed to write or synchronize state for an object. Check ownership before debugging synced variables or shared interactions.

When should I use persistence?

Use persistence for saved preferences, scores, unlocks, progress, or per-player objects that need to survive beyond the current instance.

Can ClientSim replace uploaded testing?

No. ClientSim is useful for fast editor checks, but multiplayer, platform behavior, and final SDK behavior still need VRChat testing before release.

Should I import a prefab first?

Use a prefab when you understand its setup requirements. If the concept is new, build one small local or synced example first so you know what the prefab is solving.

VRC_StarterKit (SDK3)
Script Asset Published 24 Apr 2026

VRC_StarterKit (SDK3)

VRC_StarterKit (SDK3) is a VRChat creator asset from るーにゃ on GitLab. Check the original listing for current files, setup notes, compatibility, and license details before importing.

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Udon Calibrating Chairs
Script Asset Published 24 Apr 2026

Udon Calibrating Chairs

VRCStation Chairs that adjust their enter point to align avatars to a better sitting position by aligning the avatars knee position to a target transform.

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UdonToolkit
Script Asset Published 24 Apr 2026 Updated 7 May 2026

UdonToolkit

UdonToolkit is a GitHub-hosted collection of UdonBehaviours and editor attributes for VRChat world creators working from a clean VCC project baseline.

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Video Render Texture
Script Asset Published 24 Apr 2026

Video Render Texture

Output video player into a render texture without using camera

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Spinner Prefab
Script Asset Published 24 Apr 2026

Spinner Prefab

Requires Udon Sharp. A remake of the spin the bottle prefab made by fionna, but for udon and with a pointer arrow.

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