digiKam - Professional Photo Management with the Power of Open Source
iMazing HEIC Converter - iMazing HEIC converter is a free Mac and PC app which converts photos from HEIC to JPEG or PNG.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Apowersoft Free HEIC Converter - Apowersoft Free HEIC Converter is a web-based application that helps to convert HEIF (.
FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Kingshiper HEIC to JPG Converter - Kingshiper HEIC to JPG Converter is an easy-to-use tool that converts HEIC photos to JPG, or other formats with 3 simple steps.