TikTok was initially banned, then disappeared on Saturday evening, January 18th, before reappearing the next day. While it may have returned for good, it’s always wise to back up all your content in uncertain times.
While TikTok provides instructions on how to download single videos, it seems reluctant to allow bulk video downloads. You can download some of your data in TXT or JSON format, which includes your username, watch history, comment history, and privacy settings, but may not include your videos.