Apeaksoft Free HEIC Converter is freeware which allows you to converter HEIC pictures to some common formats such as JPG, JPEG, PNG, and then you could view them on your Windows computer or iPhone on iOS 10 or earlier.
HEIF/HEIC is Apple's new image format, which takes less space but keeps good image quality. It only available on Apple devices with latest iOS 11 and latest macOS while the older macOS versions or iOS or Windows is not supported.
Apowersoft Free HEIC Converter is a web-based application that helps to convert HEIF (.heic) images to JPG. Users can add up to 50 pictures to do batch conversion, and the whole process will be completed in seconds without quality loss.
Joyoshare HEIC Converter for Windows is a perfect Apple iOS 11 photo converter to convert HEIF images to JPEG, PNG, TIFF, GIF, BMP, WEBP so that you can freely transfer and view the HEIC pictures on any older iOS devices or Windows computer.