TikTok uses several fonts for its captions and text, each with its own connotations and uses. The default font for captions on TikTok is the Classic font, which has a rounded property and is commonly associated with TikTok because of how often it is used. The Classic font is simple and clean, and it looks a lot like Proxima Nova - Semibold. Other fonts available on TikTok include Typewriter, Handwriting, NEON, and Serif. The Typewriter font mimics the typeface of a traditional typewriter and is meant to be used for longer on-screen captions. The Serif font is the only serif font in the TikTok bunch and is better suited for formal content captions.
In May 2023, TikTok introduced its own custom font called TikTok Sans, which is optimized for legibility and reading retention and is supported in many languages. The letters in TikTok Sans have bigger openings and clearer strokes, making them much easier to distinguish from one another, and the overall line height has been increased to improve readability. TikTok Sans is designed to reflect the diverse community of creators, visionaries, and storytellers on the platform.