This free online HEVC converter is very useful. It's able to convert HEVC videos free online to MP4, AVI, MOV, WebM, MKV, and various other formats and device profiles. Moreover, you can adjust the video resolutions, change the video/audio codec, and most importantly, control the final file size. Unlike many other free HEVC video converters online, there is no limit on the number of files you can convert. So you can convert as many HEVC videos as you want. But there is a size limit. You can upload an HEVC no more than 4GB at a time.