by Shugan·Workflow
Images © Shugan. Used for product review; image policy.
Shape Keys ++ earns its place in the superhive library by consolidating shape key management—duplicating, mirroring, blending, and batch cleanup—into a single Blender add-on, with ongoing updates keeping it current through Blender 5.1.
Shape Keys ++ is a Blender add-on built by Shugan for managing shape keys during animation. The developer created it to handle the repetitive parts of working with facial expressions, and it groups a range of shape key operations into one place. You can edit shape keys without switching mode and place them directly where you need them, rather than moving entries up and down the list.
Core operations include duplicate, mirror, invert, and move, along with blending using vertex groups and a Blend From Shape mode with real-time preview. Global sliders sit alongside lock/unlock all and mute/unmute all toggles. You can apply a selected shape key to the basis, apply all shape key mixes to the basis while keeping the shape keys, and run batch actions like deleting shape keys or removing zero-delta empty shape keys.
Recent updates added a Shape Key Presets system with a value slider, Copy Shape Key Order, invert options for lock/mute state and shape key vectors, and an update notification. The add-on runs on Blender 3.3 through 5.1 and is distributed under the GPL license.
Shape Keys ++ is best for blender animators managing shape keys, particularly when working on facial expressions.
Shape Keys ++ is completely free to download and use.
Shape Keys ++ supports Blender 3.3 through 5.1 according to its listing. Version 0.2.8 fixed the add-on failing to load in Blender 5.1 after the cgitb module was removed, and an earlier update fixed Blender 5.0 compatibility. If you run one of these newer releases, make sure you are on the latest version to avoid loading problems. With the 3.3 baseline, the tool covers a wide span of Blender releases, so check the developer's page for the current version before installing.
Shape Keys ++ installs like a standard Blender add-on. Open Edit (or Blender on macOS), select Preferences, then click the Add-ons tab and use the Install button at the bottom. In Blender 4.2, click the dropdown arrow at the top right and choose Install from Disk instead. Navigate to the add-on zip file, select it, and click Install Add-on, then tick the checkbox next to the installed entry to enable it. After that the shape key tools become available.
Shape Keys ++ is listed as free in this catalog, and its source is distributed under the GPL license. The developer is also noted as a Dev Fund contributor. Licensing and any pricing can change over time, so check the developer's page for the current terms before you download. The developer mentions welcoming ratings and is open to feature requests through contact, so there is a route to suggest additions if something is missing.
Shape Keys ++ lets you edit shape keys without switching mode, which is one of the workflow points the developer highlights. It also removes the need to endlessly move shape keys up and down the list, since you can place them directly where you need them. Alongside that, you get duplicate, mirror, invert, and move operations, plus blending with vertex groups and global sliders. A demo video is available on the developer's page if you want to look before installing.
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