AccelCurve is an After Effects easing extension that supports curves with three or more points, automatically analyzes selected keyframes and applies the easing to others, and provides velocity and acceleration graphs along with 24 presets.
Developed by grape design.
About AccelCurve
AccelCurve is an easing extension for After Effects that expands the native two‑point easing system to curves with three or more points. It can analyze the easing of selected keyframes and apply it to other keyframes with a single click, automatically generating intermediate keyframes to preserve the curve shape. Curve editing is performed directly on the graph: add midpoints with Shift‑click and delete them with Alt‑click. The plugin includes 24 built‑in presets based on 3‑point and 4‑point curves, and users can create, organize, rename, reorder, export, and import custom presets. Additional velocity and acceleration graphs are displayed, and the interface can switch between vertical and horizontal layouts with adjustable sizes. Supported After Effects versions are 2023, 2024, 2025, and 2026; some properties such as paths are not supported.
Features
- One-click analysis of easing on selected keyframes and application to others, with some properties such as paths not supported
- Editing of curves with three or more points, adding midpoints with Shift-click and removing them with Alt-click
- Automatic generation of intermediate keyframes between selected keyframes to preserve the easing curve shape
- 24 ready-to-use presets featuring 3-point and 4-point curves
- Custom curve presets organized into groups, with reorder, rename, move, and export/import options
- Velocity and acceleration graphs not available in After Effects
- Vertical and horizontal layout modes with adjustable graph and preset sizes
Best for
After Effects motion designers who need advanced easing curves beyond the default two‑point setup and want built‑in velocity/acceleration visualization.
Frequently asked questions
Does AccelCurve work with After Effects 2024?
Yes. AccelCurve supports After Effects 2023, 2024, 2025, and 2026, allowing it to run as an easing extension on any of those versions.
What happens when I use curves with more than two points in AccelCurve?
When a curve uses three or more points, AccelCurve automatically creates intermediate keyframes between the selected keyframes, preserving the shape of the easing curve; note that some properties, such as paths, are not supported.
How do I add or remove points on a curve in AccelCurve?
Points are edited directly on the curve: add a midpoint by Shift‑clicking and remove a point by Alt‑clicking. Presets can also be saved, organized, and transferred.
Is AccelCurve free to use?
The catalog lists AccelCurve as free, meaning no purchase is required to download it, though licensing terms may change and should be confirmed on the developer’s site.
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