by Ihlo·Motion Graphics
Images © Ihlo. Used for product review; image policy.
BlendFlow stands out in the Superhive library by keeping motion path and timing curve edits inside the viewport, so spacing and timing changes happen without opening the Graph Editor.
BlendFlow is a Blender add-on from Ihlo for editing animation trajectories and timing curves directly in the 3D Viewport. Instead of moving between the viewport and the Graph Editor, you adjust motion paths and timing curves in real time and get instant visual feedback on speed and spacing.
Motion paths appear as interactive 3D curves you can edit in place: insert, delete, scale, and rotate keyframes on the path, or click a path point to jump to that frame. An interactive HUD Easing Editor overlays Cubic Bezier easing curves on the viewport, with Auto-Mirror symmetric tangents, overshoot controls, and adjustable easing strength. Interactive tick marks run along the path to show keyframe velocity, adjusting dynamically as you change tangents or timing, and a hotkey-summoned tween slider blends between keyframe positions.
BlendFlow works on top of Blender's native keyframe system and doesn't add extra custom properties to your scene. It's a Blender Extension-compatible add-on supporting Blender 4.2 through 5.1, with Cycles and Eevee listed as the render engines, and released under the GPL license.
Blendflow is best for animators refining spacing and timing who want to edit motion paths and easing curves in the 3D Viewport rather than the Graph Editor.
Blendflow is completely free to download and use.
BlendFlow supports Blender versions 4.2 through 5.1 and is listed as Blender Extension compatible. It's distributed as an add-on for Blender. If you're working on a version inside that 4.2 to 5.1 range, the add-on is intended for your setup. For builds outside that range, or to confirm the most current supported versions, check the developer's page before installing, since Ihlo's listing reflects any updates to compatibility and includes documentation to help you get started.
BlendFlow is listed as free in this catalog. Licensing and pricing can change over time, so for the current terms and to download the add-on, visit the developer's page. The add-on is released under the GPL license, and the listing notes it comes with documentation, support from Ihlo, and product updates. If you have questions about what's included before downloading, Ihlo's page is the place to confirm the details directly with the creator.
BlendFlow lists Cycles and Eevee as its render engines, so it fits Blender projects using either of those. The add-on's editing tools work in the 3D Viewport, where you refine motion paths and timing curves with real-time visual feedback. Since it operates on Blender's native keyframe system rather than render output, your choice between Cycles and Eevee comes down to how you're rendering the rest of your scene. For specifics beyond these two engines, the developer's page is the best reference.
BlendFlow works on top of Blender's native keyframe system and doesn't clutter your scene with extra custom properties, which the developer describes as a non-destructive approach. You edit motion paths as interactive 3D curves and adjust timing and easing curves in the viewport, with changes applying instantly. Because it builds on standard keyframes, your animation data stays in Blender's usual format. For a closer look at how it behaves, a demo video is available on the developer's page.
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