LoopMaster is a script for After Effects built around making seamless loops. It can loop keyframes, items, wiggle, spin and orbit, and its intended outputs include GIFs, NFTs, Lottie animations and social media posts. Version 1.3 runs on a wide range of releases, from CC 2015 up through After Effects 2026.
The script lets you set the Time Reference for a loop to Composition, Layer or Markers, and it includes a button to add Markers for use as that reference. LoopItem can loop media even when its start or end has been cut, automatically pre-composing the media so the loop still works. Loop Keyframes & Path and LoopItem both offer a PingPong option.
Recent updates also brought UI improvements and documentation updates alongside the license framework changes. A demo video is available, and this catalog lists LoopMaster as free. For current licensing details, check the developer's page.