by atrxi·Workflow
Images © atrxi. Used for product review; image policy.
Earns its place in the blender_extensions library for handling FK/IK snapping in a single click across a variety of rig types.
FK/IK Snapping Tools is a Blender add-on from atrxi for snapping IK bones to FK and vice versa while animating humanoid rigs. It works on a variety of rig types, snaps in one click, and can be found in the Animation tab. When snapping, IK matches to FK bone rotation.
Before use, you assign your deform bones, FK bones, and the IK pole and target to their corresponding positions under "Bone Settings" for each limb. Clicking "FK -> IK" snaps the IK bone to the FK bone's position, and "IK -> FK" snaps the FK bone to the IK bone's position.
The add-on is compatible with Blender 4.2 LTS and newer, and it requires no special permissions. It is released under the GNU General Public License v3.0 or later. Version 1.0.0 was the initial release, and issues can be reported through the developer's GitHub page. It sits within the blender_extensions library among rigging and animation tools.
FK/IK Snapping Tools is best for animators working with humanoid rigs who need to switch bone positions between FK and IK.
FK/IK Snapping Tools is completely free to download and use.
FK/IK Snapping Tools is compatible with Blender 4.2 LTS and newer, so it runs on 4.2 and later releases. The add-on requires no special permissions. If you are on an earlier build of Blender, you would need to update before installing. For the current status and any version-specific notes, the developer's GitHub page is the place to check before you set up your rig and start snapping between FK and IK.
FK/IK Snapping Tools asks you to assign your bones first. Under "Bone Settings" for the limb you are working on, select your deform bones, FK bones, and the IK pole and target in their corresponding positions. Once those are set, click "FK -> IK" to snap the IK bone to the FK bone's position, or "IK -> FK" to snap the FK bone to the IK bone's position. When snapping, IK matches to FK bone rotation. The tools are located in the Animation tab.
FK/IK Snapping Tools is listed as free here in the catalog. It is released under the GNU General Public License v3.0 or later, and it requires no special permissions to run in Blender. For current licensing details and the latest terms, check the developer's GitHub page. The add-on reached version 1.0.0 as its initial release, and any issues can be reported through the same GitHub project.
FK/IK Snapping Tools appears in the Animation tab once installed. From there you configure the bones for each limb under "Bone Settings" and use the FK -> IK and IK -> FK buttons to snap in one click. The add-on works on a variety of rig types and is built for animating humanoid rigs. It is compatible with Blender 4.2 LTS and newer, so make sure your Blender version meets that requirement before installing.
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