HD Video Converter Factory is a powerful but easy-to-use HD video conversion software. It owns the ability of converting videos to a broad range of popular formats and devices like H264, AVI, MPG, MP4, WMV, MKV, MOV, M4V, iPhone X, iPhone 8 Plus, iPad mini series, Samsung Galaxy series, classic and new TVs and more. New pop devices are keeping added. This free HD video converter supports Multi-CPU and Hyper Threading, and offers up to 30x real time video converting speed. Why is WonderFox Free HD Video Converter different from other HD Converters? The first and perhaps the most important point is the exclusive optimization tech. It completely avoids the disproportionate aspect ratio and dull color of the output images, and is able to make the output video shown on the portable device in full screen. In addition to the powerful converting function, it is also a video editing software. Like, merge multiple videos; trim and crop video; add special effects to video. It also supports users to download online video from 300+ sites. The free HD video converter is a completely free gift, which helps users convert and download videos and audios in a simpler way.