About Keystone

Keystone is an After Effects extension developed by Romain Cousin. It provides an Anchor section that can reposition anchor points or create null objects with Ctrl/Cmd + click, targeting individual layers, groups, compositions, custom coordinates, and the internal anchor points of shape and text layers. The extension includes a Layers panel with options to link and unlink keyframes and layers, as well as temporal and spatial interpolation controls. Users can customize the UI with a vertical layout, hide section titles, and adjust the UI scale in preferences. A Favorites system lets users show only chosen features, and keyframe selection can be performed by color with keyboard shortcuts for layer labels. Keystone also supports KBar and works with After Effects 2026, 2025, 2024, 2023 and 2022, matching the 2025 color themes in Darkest, Dark, and Light appearances.

Features

• Anchor section to reposition anchor points or create null objects with CTRL/CMD + click, targeting individual layers, layer groups, the composition, custom coordinates, and internal anchor points of shape and text layers
• Dedicated Layers panel with options to link and unlink keyframes and layers
• Temporal and Spatial Interpolation controls
• Favorites system to display only the features you select
• Adaptive UI with a vertical layout, an option to hide section titles, and an adjustable UI scale in preferences
• Keyframe selection by color and keyboard shortcuts for layer labels (CTRL/SHIFT/ALT + click)
• KBar support, including label functions and keyframe and layer link options

Best for

After Effects animators who need efficient control over keyframes, anchor points and layer organization.