A video converter is a software tool that changes video files from one format to another. This is useful because different devices and platforms support various formats, such as MP4, AVI, or MOV. By converting videos, users can ensure compatibility with their devices, whether it's a smartphone, tablet, or computer. These converters can also adjust video quality, resolution, and size, making it easier to share or store videos. Many video converters are available online or as downloadable applications, offering both free and paid options. Some popular examples include HandBrake and Freemake Video Converter.