by Likkez·Workflow
Images © Likkez. Used for product review; image policy.
Merge NLA Strips earns its place in the blender_extensions library as a small, focused utility for the NLA editor. The developer describes it as filling a gap that arguably should have been in Blender from the start.
Merge NLA Strips is a Blender add-on by Likkez for the Nonlinear Animation editor. It combines multiple selected NLA strips into a single strip non-destructively. Rather than using Blender's built-in baking, it copies all keyframes from the selected strips quickly, though it does so for every frame just as regular baking does.
The merge operation is available from the NLA right-click menu. Version 1.2.0 adds an NLA Renamer operator next to the merger, which makes it easier to rename the action used in a strip. The add-on requires no special permissions to run.
Merge NLA Strips is compatible with Blender 4.2 LTS and newer and is released under the GNU General Public License v3.0 or later. It sits at rank 391 in the blender_extensions library, and issues can be reported through the developer's GitHub page.
Merge NLA Strips is best for blender animators working in the Nonlinear Animation editor who want to combine selected NLA strips into one.
Merge NLA Strips is completely free to download and use.
Merge NLA Strips lists compatibility with Blender 4.2 LTS and newer, so it runs on the 4.2 LTS release and later versions. It's a lightweight add-on at 4.3 KB and requires no special permissions. You can add it by dragging the downloaded file into Blender or installing it from disk through the Extensions preferences. Once installed, the merge operator appears in the NLA right-click menu. For the exact minimum version and any newer releases, check the developer's page.
Merge NLA Strips adds its operator to the NLA right-click menu, so you select the strips you want to combine and choose the option from that menu. One reviewer noted the option appears toward the bottom of the right-click list. Version 1.2.0 also places an NLA Renamer operator next to the merger, which helps rename the action used in a strip. The add-on merges strips non-destructively rather than editing the originals directly.
Merge NLA Strips does not use Blender's built-in baking. Instead, it copies all keyframes from the selected strips into one strip, which the developer describes as a quick process, though it still works through every frame the same way regular baking does. The result is non-destructive, so the original strips remain. According to the developer, after merging the source strips are muted rather than removed, and pressing H unmutes them.
Merge NLA Strips is released under the GNU General Public License v3.0 or later. It's listed here as free, and it requires no special permissions to run in Blender. The source code lives in the developer's BlenderNLATools GitHub repository, where you can also report issues. For the current license terms and any newer versions, refer to the developer's page rather than relying on this summary.
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