TikTok hashtags are keywords or phrases preceded by the “#” symbol, used to categorize and discover content on the platform. They help users tag their videos to align with specific trends, challenges, or topics, making it easier for others to find their content through searches or the “For You” page. Hashtags play a critical role in increasing a video’s visibility, as TikTok’s algorithm uses them to recommend content to users with similar interests. They can be broad, like #fyp, or niche, targeting specific communities or trends, and are essential for creators aiming to grow their audience or participate in viral challenges.