A data URL is a URI scheme which provides a way to include data in-line in web pages as if they were external resources.
This easy to use tool converts your images to data-URI i.e it creates data-URI from provided image(s) by encoding your images to base64.
Files above 1.0MB are ignored! None of your files gets send to a server thus making the conversion very fast and private (local). That said expect long loading time when dealing with batch of images that are relatively big.