iMazing HEIC Converter - iMazing HEIC converter is a free Mac and PC app which converts photos from HEIC to JPEG or PNG.
CopyTrans HEIC for Windows - A plugin that lets you view HEIC photos on Windows and convert them to JPG by right-clicking.
Aiseesoft HEIC Converter - Aiseesoft HEIC Converter is a useful tool that converts photos from HEIC to JPG/JPEG or PNG. You can open iPhone HEIF images on non-Apple devices conveniently.
iMyFone HEIC Converter - iMyFone HEIC converter can convert your iPhone's HEIC photos to JPEGs on your computer without...
IrfanView - IrfanView ... one of the most popular viewers worldwide.
HeicToJpeg - This free online tool converts your HEIC images to JPEG format, applying proper compression methods