AEJuice Duplicate is a script for After Effects that handles duplicating compositions built from nested comps. When you copy a composition, it creates a completely independent copy along with copies of the nested compositions inside it, producing a standalone version of the comp.
AEJuice Duplicate also updates expressions and automatically relinks them, so references stay connected after the copy is made rather than pointing back to the originals. The script is integrated with kBar for teams that use that setup.
It runs in After Effects CC 2015 through CC 2022 or higher, covering a broad span of recent releases. Within the toolfarm library it holds a popularity rank of 309, and this catalog lists it as free. For current licensing, promotions, and download details, check AEJuice's own page.