All Gadgets
EasyTrajectory
by dynamder
This plugin allows you to create trajectories (e.g. bullet, enemy, etc.) in a simple but powerful way. you can: 1. create simple trajectories directly 2. combine multiple trajectories in special ways to form complex trajectories 3. use dictionary (which can be loaded from a json file) to create complex trajectories 4. well support for custom trajectory types

UI-Expander
by omid3098
If you want to develop a GUI for your game or application using godot, the default godot anchor points are not very helpful. Instead, you can press CRTL+M to maximize your UI element and design easily.
BoneIK
by thiagola92
Inverse Kinematic addon for Godot.
Multinet (Godot 4 Multiplayer C# addon)
by kkalinovk
Multinet is an add-on for Godot 4, which aims to provide easier access and setup for Godot's built-in multiplayer implementation.

Tracery
by althar93
A GDscript port of Kate Compton's Tracery. Quoting directly from the the official website ( http://tracery.io/ ) : "Tracery is a super-simple tool and language to generate text. by GalaxyKate."

Motion Blur
by mantequilla
A motion blur plugin created by Bauxitedev, ported to Godot 4.0
Cybs Gameunit
by cyberrebell
3D Gameunit system to manage health, display health bars and display incoming damage or heal
2D Editor Light Toggle
by axuap
Adds a light toggle in canvas editor's toolbar. Use this toggle to view your level without lighting (for example, dark levels). Affects editor only, runtime lights will be there as usual. Note: Works only for PointLight2D and DirectionalLight2D (not CanvasModulate).
Squiggles Fur
by queenofsquiggles
A shell fur tool for Godot 4 that provides a robust, no-code approach to stylish fur and fur-like materials. Supports all currently available 4.X versions
EffectBus 2D (C#)
by chasecarlson1
An EffectBus node manages object pools of AnimatedSprite2D-based effects for performance optimization. The best use case of an EffectBus node is to pool hundreds (or even thousands) of AnimatedSprite2D flipbook effects in a scene where the effects can to be y-sorted, unlike using a regular particle system.
Godot Ragdoll Example
by akiakjava
Godot Physical Bone Ragdoll Example
CalculusVisualizations
by yunusey
Calculus Visualizations is a tool for visualizing calculus concepts such as solids of revolution and solids of cross sections.