The objective of this review is to provide a detailed overview of triazine-based TADF materials, to compare and contrast their optoelectronic properties and to report their performance as emitters in OLEDs. The emission properties of these TADF emitters were mainly modulated via the tuning of the donor strength, modifying the substituents about the triazine, varying the nature of the D-A bridge and switching CT channels (intramolecular CT vs. through-space CT).