If you ve seen Facebook s name in TikTok s Terms of Use you might be wondering does Facebook own TikTok The answer is no The reason Facebook Google and NVIDIA appear in TikTok s legal documents is because TikTok is using o p e n -source software from these companies Many big tech companies including TikTok use o p e n -source components to improve their apps This helps them save time enhance performance and customize features to fit their needs For example TikTok could be using - Facebook s Network Connection Class to handle mobile network performance - Google s machine learning tools like TensorFlow - NVIDIA s PhysX engine for video and graphics processing This is completely legal under the BSD 3 -Clause License which allows companies to use and modify the software as long as they include the original copyright notice.