A speedloader is a device used to reduce the time and effort needed to reload a firearm. Speedloaders come in a variety of forms for reloading revolvers, or the magazines used with other types of firearms such as rifles and shotguns. Generally, speedloaders are used for loading multiple chambers of a revolver simultaneously.

An empty revolver is useless, and in a personal protection incident it behooves the shooter to get it reloaded quickly. A full cylinder reload (commonly called an Emergency Reload) is done with either the strong hand or weak hand technique. A speed loader or moon clip is quickest, but a stripper clip or loose rounds can be used.