
CryptoMatte ID Color
by 61+
CryptoMatte ID Color is a Blender add-on that generates real-time ID color compositor nodes using Cryptomatte. It builds and connects node groups based on the number of objects or materials in the scene.
by Rurouni-Usman·Workflow
Images © Rurouni-Usman. Used for product review; image policy.
blendixserial earns its place in the blender_extensions library for a specific niche: linking Blender to hardware. Bridging a 3D scene with microcontrollers, embedded systems, or custom software over a serial connection is uncommon among add-ons, and its support for both a CSV format and a custom binary protocol makes it a practical option for hardware-oriented projects.
blendixserial is a Blender add-on from Rurouni-Usman that connects your 3D scene to external devices and applications through COM ports using UART. Rather than working in isolation, Blender can exchange structured data in real time with microcontrollers, embedded systems, or custom software, and you can send and receive data, control 3D objects, and display text from a connected device directly inside Blender.
The add-on lets you set up a serial connection, adjust port settings, and switch between different modes depending on your project. It supports both a simple CSV format and a custom binary protocol, which makes it flexible enough for a range of technical and creative applications. It requires no special permissions to run.
Version 2.2.1 fixes a subprocess startup issue by forwarding Blender's Python arguments to prevent crashes from incompatible Python environments, and it turns debugging into a clear logging feature that reports add-on and device activity in Blender's console. blendixserial is compatible with Blender 4.2 LTS and newer and is released under the GNU General Public License v3.0 or later.
blendixserial is best for blender users connecting a 3D scene to microcontrollers, embedded systems, or custom software over a serial COM port connection, and those needing real-time data exchange to control objects or display text from external devices.
blendixserial is completely free to download and use.
blendixserial is compatible with Blender 4.2 LTS and newer, so any release from that version onward supports the add-on. It runs inside Blender and sets up serial communication over COM ports, letting your 3D scene exchange structured data with external devices. If you are on an older Blender build, you would need to update to at least 4.2 LTS before installing. The add-on requires no special permissions, which keeps setup straightforward on a supported version. Check the developer's page for the latest compatibility details before installing.
blendixserial installs like a standard Blender extension. You can drag and drop the downloaded add-on directly into Blender, or download the file and use Blender's Install from Disk option. Once installed, you can set up a serial connection, adjust port settings, and switch between different modes depending on your project. The add-on requires no special permissions, so there are no extra system access prompts during setup. For the download file and step-by-step guidance, refer to the developer's page.
blendixserial supports both a simple CSV format and a custom binary protocol, giving you two ways to structure the data exchanged between Blender and a connected device, which suits a range of technical and creative applications. Through the serial connection you can send and receive data in real time, control 3D objects, and display text from an external device directly inside Blender. You can also adjust port settings and switch between different modes to match your project. See the developer's page for protocol specifics.
blendixserial 2.2.1 focuses on stability and troubleshooting. This release fixes a subprocess startup issue by ensuring Blender's Python arguments are properly forwarded, which prevents crashes caused by incompatible Python environments. It also improves the debugging system, turning it into a clear logging feature that shows add-on and device activity in Blender's console for easier troubleshooting. The version was published in March 2026 and requires no special permissions. For the full version history and any newer updates, check the developer's page.
Also in Workflow for Blender.

by 61+
CryptoMatte ID Color is a Blender add-on that generates real-time ID color compositor nodes using Cryptomatte. It builds and connects node groups based on the number of objects or materials in the scene.

by Blender Defender
Gizmodal Ops is a free Blender add-on that combines the Gizmo workflow from other 3D software with Blender's Modal workflow, listening to your keystrokes to switch between transform, rotation and scale methods.

by Matsm-Studio
Unreal Viewport Navigation - WASD brings Unreal Engine-style viewport movement to Blender. Hold the right mouse button and use WASD or arrow keys to look around and move through the 3D viewport.

by MingWitty
Color Palette is a Blender add-on for recording material node colors in the Shader Editor. Drag a node's color onto a sticky note to save it, then retrieve and apply the same color later.

by Me Bman
Addonpanel Manager is a Blender add-on for organizing the N-Panel. It lets you view multiple panels at once, group them together, and customize your addon panel layout to suit your workflow.

by Salt Media
BlenderAe2 by Salt Media transfers 3D data and objects between Blender and After Effects in both directions, covering vertices, 3D layer transforms, camera data and layer synchronization.

by MACHIN3
Machin3Tools is a continuously evolving collection of tools and pie menus for Blender, gathered in a single customizable package. It ships in two base variants, Prime and DeusEx, with the DeusEx variant adding more advanced tools.

by MikhailRachinskiy
3D Print Toolbox is a Blender add-on with utilities for 3D printing. It analyzes mesh volume and surface area, checks and fixes geometry, hollows shapes, aligns models to the print bed, and exports to STL, PLY, and OBJ.

by glukoz
UVPackmaster 4 is a UV packing engine for Blender that packs UV maps on the CPU and GPU, using the Cuda and Vulkan APIs, and can run on the CPU and all system GPUs at once.

by MMD
MMD Tools is a Blender add-on for editing MikuMikuDance (MMD) models. It handles importing and exporting model, motion and pose data, along with chopping and joining parts, plus rigid body, material and motion editing.

by HaughtyGrayAlien
SimpleBake brings PBR and traditional texture baking to Blender from a single panel. Select objects, choose maps, and bake — no special node groups or new workflow, working with whatever materials you've already built.