TikTok today is announcing a new in-app creation tool called TikTok Library, which the company hopes will make it easier for creators to access entertainment content and participate in trends. Initially, the Libary will be populated with select content from GIPHY, including its collection of GIFs with sound, known as GIPHY Clips. Over time, TikTok says it expects to expand the Library with additional content sources, audio and sounds, text templates and other TikTok creator content.