SageThumbs - SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats...
iMazing HEIC Converter - iMazing HEIC converter is a free Mac and PC app which converts photos from HEIC to JPEG or PNG.
Icaros - Icaros is a collection of lightweight, high quality, Windows Shell Extensions
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
FastPreview - FastPreview was created in need of a usable ...
QuickLook - Bring macOS “Quick Look” feature to Windows.