Reframe lets you resize any After Effects composition to popular social media formats instantly. One click switches your comp to YouTube 1920×1080, Instagram 1080×1080, Reels and TikTok 1080×1920, Instagram Portrait 1080×1350, Twitter 1280×720, or 4K UHD 3840×2160. Need a non-standard size? Type any custom dimensions and hit apply. Toggle scale layers to fit and Reframe proportionally scales all your layers to match the new comp size, or leave it off to keep layers at their original size centered in the new frame. Every resize is wrapped in a single undo group so you can switch between formats freely and Ctrl+Z back to where you started. Built for editors and motion designers who repurpose content across platforms and need to stop digging through comp settings menus for every format change.