FileOnTap

FileOnTap's HEIC to PNG converter turns iPhone HEIC and HEIF photos into PNG files right in your browser. Pick up to 10 photos at once; they're converted locally on your device, so nothing is uploaded to a server, and you can download each PNG or a single ZIP. It's free, needs no account, and works on Windows, Mac, Linux and Chromebook. FileOnTap also offers HEIC to JPG, WebP to PNG, image compression and PDF tools. PNG is a lossless format, so it's a good choice when you want to edit photos, keep transparency-friendly files, or share images with apps and websites that don't support HEIC.