Unofficial revival of the well known .NET debugger and assembly editor, dnSpy

GUI and API library to work with Engine assets, serialized and bundle files

Debugging utilities for Unity

Code-based UI library for development menus for Unity

A tool for monitoring the PlayableGraph in real-time within the Unity Editor.

HotReload Unity C# script without exit play mode and keep the running context unchanged

Frame visualization utility for Unity

Highly efficient gizmo drawer for Unity

Graphical Debugging extension for Visual Studio

A multifunctional, extensible, and high-performance Gizmos drawing utility for Unity. It works both in the editor and in the build, and drawing can be done both in OnDrawGizmos and in Update.

DbgDraw is an API that provides the ability to render various 2D and 3D shapes for visual debugging purposes.

Automatic error reporting for Unity games

⚡ Improved Unity Console adding better log and stacktrace readability, log filtering, log hyperlinks and more

Detect root, emulation, debug mode and other security concerns in your Xamarin apps

Create a runtime menu system with buttons and windows for debugging in one line of code.

A Powerful Unity Runtime Debugger Plugin, 一个Unity运行时调试查看日志组件，可搜索/可保存到本地

HiLog: The extensions of unity's log plugin

.NET notifier for BugSnag. Error monitoring and error reporting for .NET.

A simple channel driven logging script for use with Unity.

The Immediate Window provides a way to rapidly edit and debug code. It is not a full development environment, instead it is to be used for API discovery and rapid prototyping.