The best heic to jpg converter I can use on Windows 11 PC?

If you already installed the HEIF Image Extensions on Windows 11, you can use PowerShell together with .NET/Windows imaging support to convert HEIC to JPG.

Here is a simple PowerShell example for converting one HEIC file to JPG on Windows:

Add-Type -AssemblyName System.Drawing
$heic = "C:\Photos\image.heic"
$jpg = "C:\Photos\image.jpg"
$image = [System.Drawing.Image]::FromFile($heic)
$image.Save($jpg, [System.Drawing.Imaging.ImageFormat]::Jpeg)
$image.Dispose()

To batch convert all HEIC files in a folder:

Add-Type -AssemblyName System.Drawing
Get-ChildItem "C:\Photos\*.heic" | ForEach-Object {
    $jpgPath = Join-Path $_.DirectoryName ($_.BaseName + ".jpg")
    $image = [System.Drawing.Image]::FromFile($_.FullName)
    $image.Save($jpgPath, [System.Drawing.Imaging.ImageFormat]::Jpeg)
    $image.Dispose()
}

What this does:

• Reads all .heic files in the folder
• Converts them to .jpg
• Saves the JPG files in the same directory
•  

If PowerShell cannot open the HEIC file directly, install both:

• HEIF Image Extensions
• HEVC Video Extensions

These HEIC to JPG Converter codecs allow Windows 11 to properly decode many HEIC photos from iPhone devices.