Kafire is a Blender addon from Picto Filmo made to generate fire explosions and simplify fire and smoke simulation. Its stated aim is to make that effect easier to produce.
Two sample scenes are available for download, and a documentation page explains the interface. Update 1.1 introduced new emission behavior, and a demo video is available as well.
Kafire works with Blender 3.6 through 5.1 and is distributed under the GPL license, meaning the addon can be used and modified under those terms. Picto Filmo also offers companion addons, Ka Domain and Ka Boom, available as part of a bundle. Kafire has been published for about three years and holds a top rating from a small number of reviews, with more than 200 sales recorded.