How to Encode an Image to a Base64 String in C#?

Encode an Image to Base64 Using C#

Many applications require the ability to embed images within other formats, such as JSON or XML. In C#, converting an image to a base64 string allows for easy storage and transmission of image data.

To convert an image to a base64 string, follow these steps:

1. Load the image from the specified path using Image.FromFile(Path).
2. Create a MemoryStream object to store the image's byte representation, and then use image.Save(m, image.RawFormat) to save the image to the stream.
3. Convert the stream's byte array to a base64 string using Convert.ToBase64String(imageBytes).

Here is an example implementation to convert an image located at "C:/image/1.gif" to a base64 string:

using (Image image = Image.FromFile("C:/image/1.gif"))
{
    using (MemoryStream m = new MemoryStream())
    {
        image.Save(m, image.RawFormat);
        byte[] imageBytes = m.ToArray();

        // Convert byte[] to Base64 String
        string base64String = Convert.ToBase64String(imageBytes);
        return base64String;
    }
}

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