Mesh Cleaner for Blender Simplify your 3D workflow with Mesh Cleaner for quick, effective mesh clean-up. Perfect for photogrammetry scans and downloaded models, it brings all the essential geometry-cleaning tools into one easy-to-access panel.

RBF Nodes for Blender v1.2.1

https://braverabbit.gumroad.com/l/rbfNodesBlender?layout=profile

• RBF Nodes is a node-based RBF solver for Blender. It allows to drive multiple properties with multiple driver values.  RBF stands for Radial Basis Function and is used to approximate or interpolate a given set of values at any defined sample point. RBFs have a wide range of applications and can be very helpful when regular ways of driving values fail in 3D animation. It basically allows the user to interpolate multiple values based on a set of sample values, or poses which are defined by the artist in advance. For standard drivers, such multi-value interpolation is not easily, or even impossible to achieve. Like, a driver in Blender can have multiple input values but only one output target. RBFs can solve multiple output values based on multiple input values.
• Blender 3.1.0 and later

Superhivemarket - PowerSave v0.4.7 for Blender

Software Version  4.3-2.8

https://superhivemarket.com/products/powersave

PowerSave is a tool intended to streamline saving and make saving itself more accessible, friendly and more artist streamlined. Hit the powersave button and save instantly. No additional thought required. Well maybe a little. After installing PowerSave and configuring the default folder you are good to go. In fact you can use it out the box without configuring anything but your PowerSaves will be saved to a temp location on your computer. In the 3D View options area you should see an icon for PowerSave and its color alone lets you know the status of your current scene.

Blender 4.3  and newer

Flowify Saver Pro Auto-save and manage Blender files with ease!
Flowify Saver Pro is an essential add-on for Blender users, offering robust auto-save, backup, and file management tools to protect your work. Designed for animators, modelers, and creators, it ensures seamless project saving with automatic .blend extension enforcement. Accessible via the 3D View header or N-panel, it integrates perfectly with Blender 4.3.0+.

Thomas Rig Legacy v1.1.4

Blender 4.2 and later

https://braverabbit.gumroad.com/l/simpleIkSolverNodeGroup?layout=profile

The Simple IK Solver is a Geometry Nodes group which allows to setup simple mechanics without the need of setting up an armature. This way basic articulation can be build into a single setup while leveraging the power of Geometry Nodes, without having to revert to armatures.

This extension will add a toolbar in the tracking viewport that automates using detect features then tracking forward. You can then use the builtin tools or other extensions to remove and reweight bad tracks. Useful for footage that wasn't captured with motion tracking in mind; no tracking markers in scene.

Rig Creator v1.4.0 For Blender

https://edwardurena.gumroad.com/l/ramoo

The rigging system has been completely rewritten to optimize several aspects and add more tools, offering a more efficient workflow. Now includes facial rigging functionality to make it easier to animate facial expressions.

Software Version  4.4, 4.3, 4.2, 4.1, 4.0, 3.6

Dolly Zoom Setup v1.0.0

https://blender-archipack.gumroad.com/l/ZRMyP

Blender-Archipack 2.x add-on for blender 3.x / 4.x boost archviz artists productivity by magnitudes.

• The add-on provide a collection of strong parametric architectural primitives.

• Built around concepts that are intuitive and easy to master.

• Real time on-screen editing interface for even faster, more intuitive object management.

• Complete and total control of generated objects at any time, down to the most minute details.

• Objects generated by Blender-Archipack are regular blender meshes, this ensures the highest level of portability and allows rendering on any render-farm.

• In addition to everything one would expect in a sophisticated archviz solution, Blender-Archipack also possesses a number of important features including material library and powerful presets management.

https://superhivemarket.com/products/geometry-nodes-groups

Geometry Nodes toolset pack includes over 140 wide range of advance node groups to help improve and enhance procedural workflows

Superhivemarket - Eyebrow Pack

https://superhivemarket.com/products/eyebrow-pack

The Eyebrow pack consists of 10 different eyebrows that you can easily and quickly put on any character, edit and animate

Fluent : Materializer - Material Tool Suite v1.9.3

https://superhivemarket.com/products/fluent-materializer

Make & bake awesome custom materials using a polished procedural workflow that was designed for actual artists.

Bonsai v0.8.2 For Blender

https://bonsaibim.org/

Bonsai was previously known as a BlenderBIM add-on. Bonsai is designed to be a comprehensive and truly native BIM authoring platform. Its capabilities include a wide range of tasks and workflows commonly found in various BIM and CAD software, costing programs, planning tools, and modeling applications.

• Append and link rigs! Save space like never before! OptiPloy, the Optimized Deployment of rigs (and more) is now here.  OptiPloy (optimized deployment) can be considered a better alternative to appending and linking rigs, while having the best of both worlds. Appending them for full functionality, and linking all the data that composes the rig to reduce duplication. And that can save a LOT of space.

Superhivemarket - Bmesh Clean v1.1.203

Software Version  4.4, 4.3, 4.2, 4.1, 4.0, 3.6, 3.5, 3.4, 3.3

https://superhivemarket.com/products/bmesh-clean-add-on

bmesh addon for blender Limited dissolve , remove doubles recalculate normal flip normals remove double clean mesh "Tris to quad" "merge by distance"

Blender 4.3 and newer

Modern Primitive: Elevating Blender’s Foundational Modeling Tools

The Modern Primitive add-on for Blender reimagines the way artists interact with primitive shapes, transforming basic geometric forms into dynamic, customizable building blocks for 3D modeling. Designed to streamline workflows and enhance creativity, this toolset bridges the gap between simplicity and sophistication, offering parametric controls, advanced primitives, and a non-destructive workflow that adapts to both beginners and seasoned professionals. Whether crafting intricate hard-surface designs or prototyping architectural concepts, Modern Primitive empowers users to create with unprecedented flexibility.

https://clemensbeute.gumroad.com/l/hobbit?layout=profile

A geometry nodes setup in blender, which allows you to create custom hobbit doors. It comes with 9 premade doors, with good looking seeds / settings (from the video). But you can procedurally generate an infinite amount of different doors, by changing the seeds and settings. You just have to fiddle around a bit until you find a combination you like.