This PowerShell script allows you to select an image file, converts it to a base64 string, and saves the string to a text file. It's useful for embedding images in text-based formats like HTML or CSS.

base64myImage.ps1

# Open a file dialog for the user to choose an image
Add-Type -AssemblyName System.Windows.Forms
$OpenFileDialog = New-Object System.Windows.Forms.OpenFileDialog
$OpenFileDialog.ShowDialog() | Out-Null
$image_path = $OpenFileDialog.FileName

# Read the image file and convert it to a base64 string
$ImageBytes = [System.IO.File]::ReadAllBytes($image_path)
$Base64Image = [System.Convert]::ToBase64String($ImageBytes)

# Open a save file dialog for the user to choose the save location and file name
$SaveFileDialog = New-Object System.Windows.Forms.SaveFileDialog
$SaveFileDialog.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
$SaveFileDialog.DefaultExt = "txt"
$SaveFileDialog.ShowDialog() | Out-Null
$save_path = $SaveFileDialog.FileName

# Write the base64 string to the chosen file
[System.IO.File]::WriteAllText($save_path, $Base64Image)

Just create a file and run it from the terminal. It will open a file browser so you can find your image file, then it will open another file browser so you can save a text file which will contain your base64 encoding. You can then copy and paste that encoding for use in your HTML, or wherever you want to use that base64 encoded image.