by grape design·Motion Graphics
Images © grape design. Used for product review; image policy.
Smooth Rounder earns a spot in the aescripts library for producing shapes smoother than After Effects' built-in Ellipse and Rectangle corner rounding, with every controller left open to keyframes.
Smooth Rounder generates smoothly curved shapes in After Effects, built to work with Shape Layers. Its curves come out smoother than the standard corner rounding on the Ellipse or Rectangle shapes, which makes it suited to Modern UI design styles such as super ellipse icons. The developer describes it as very easy to use.
When you apply it, the plugin creates controller effects for size, round and corner radius. Each of these controllers accepts keyframes, so the smoothness of a curve can be animated over time. As with other objects on a Shape Layer, you can also control fill, stroke and related attributes.
Smooth Rounder is at version 1.07, last updated on September 26, 2024, with that release simplifying the undo operation. It lists compatibility with After Effects 2026, 2025, 2024, 2023 and 2022, and a demo video is available. It is listed here as free.
Smooth Rounder is best for creating and animating smoothly rounded shapes and super ellipse-style UI icons on Shape Layers in After Effects.
Smooth Rounder is completely free to download and use.
Smooth Rounder lists compatibility with After Effects 2026, 2025, 2024, 2023 and 2022, so several recent versions are covered. The current release is version 1.07, last updated on September 26, 2024, a release that simplified the undo operation. If you are running one of those After Effects versions, check the developer's page to confirm the details for your specific build before installing it on your system.
Smooth Rounder supports animation with keyframes across its controllers. When applied, it creates controller effects for size, round and corner radius, and every one of these can take keyframes. This means the smoothness of a curve can be animated over time rather than set once. Because the shape lives on a Shape Layer, you can also control fill, stroke and other standard Shape Layer attributes alongside the curve controls.
Smooth Rounder lets you control fill and stroke much like any other object on a Shape Layer. The shapes it generates behave as Shape Layer content, so the usual fill, stroke and related settings remain available to you. Alongside those, the plugin adds its own controllers for size, round and corner radius, each of which can be keyframed for animation. This keeps styling and shape control together within the Shape Layer workflow.
Smooth Rounder is listed here as free, so you can add it without a purchase through this catalog. Licensing terms can change, though, so it is worth checking the developer's page from grape design for the current details before you download. That page is also the best place to confirm the latest version and compatibility information for your particular After Effects setup.
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