Grid Composer is a layout designer for After Effects that lets you create grid, split, random, and custom layouts inside a visual editor with live preview. You build arrangements through drag-and-drop editing, with Snap to Blocks and alignment guides to position elements.
The Custom Grid builder gives you adjustable rows, columns, and per-cell sizing, while the random generator offers multiple style options. You can split blocks horizontally, vertically, or with custom sub-grids, adjust Gap and Padding, and duplicate blocks in four directions plus center. A preset library organized in four categories is included, and you can save and reuse your own presets. Finished layouts export through five modes: Compositions, Shape Layers, Solid Layers, Masks on Solid, and Comps + Alpha Matte. Built-in IN/OUT animations come with multiple styles, orders, and easings.
Grid Composer runs on Windows and macOS and works across all After Effects languages. It supports After Effects versions 2022 through 2026.