Uploading 16,000 photos for a survey and randomizing the selection of those 16,000 photos into 90 questions

This code will allow you to select 90 images from the full list of image urls and store them in EDs named Image_1, Image_2….. Image_90.

You can then use these EDs as per your requirement.

Qualtrics.SurveyEngine.addOnReady(function () {
	const imageList = [
		"URL 1",
		"URL 2" // All your image URLs go here
	];

	const selected = [];

	// Set how many images you want to select here
	while (selected.length < 90) {
		const random = Math.floor(Math.random() * imageList.length);
		selected.push(imageList.splice(random, 1)[0]);
	}

	selected.forEach((url, index) => {
		const varName = "Image_" + (index + 1);
		Qualtrics.SurveyEngine.setEmbeddedData(varName, url);
	});
});