O2 Editor Tools is a Unity Editor toolkit designed to make your development workflow smoother and more efficient. Created out of practical needs, this set of tools helps you organize your project, speed up scene management, validate setups, and scaffold scripts — all within the Unity Editor!
Color-code GameObjects by tag in the Unity Hierarchy window. Customize font styles and alignment for better clarity and organization.


Quickly switch between scenes and ensure your setup scene automatically opens whenever you enter Play mode — saving you time and hassle when testing across multiple scenes.

Easily spot unassigned fields marked with attributes and get alerts in the editor. Automatically assigns missing references when possible. Detects GameObjects with missing scripts, lists them, and lets you delete unwanted objects. Customize validation scope, exclude namespaces, or ignore specific items using IgnoreValidationAttribute.


Predefine script templates and generate .cs files directly from the Project window’s right-click menu. Built on top of the O2 Script Builder for flexible and dynamic script generation.


Organize and categorize your prefabs/models for quick access. Right-click in the Hierarchy to select from your categories and easily add models to your scene — perfect for level design and rapid prototyping.


- Download the
O2 Editor ToolsUnity package. - Import it into your Unity project.
- Access the tools and settings from the top menu under O2 / Settings. From here, enable, disable, or customize your tools.
- Hierarchy Highlighter — Improve hierarchy readability with colors and fonts.
- Scene Utility — Save time switching and auto-loading setup scenes on Play.
- Validator Utility — Maintain clean and error-free scenes with validation and missing script detection.
- Script Draft — Quickly scaffold scripts using your custom templates.
- Quick Fab — Streamline level design by categorizing and accessing prefabs fast.