CopyTrans HEIC for Windows - A plugin that lets you view HEIC photos on Windows and convert them to JPG by right-clicking.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
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.
Seer - A Windows Quick Look Tool in Qt.
Heic File Converter - Free Software to Convert HEIC File to JPG / PNG / PDF