There are two formats of captions you can use on TikTok: automatic captions and manual captions. Automatic captions: TikTok's auto-caption feature uses speech recognition technology to transcribe the audio of your video into text. This feature can be a quick and easy way to add captions to your videos, but it's not always accurate. Manual captions: Manual captions are captions that you add to your video manually. This gives you more control over the content and formatting of your captions.