diff --git a/core/modules/startup.js b/core/modules/startup.js
index 0bede0478..d6ef65490 100644
--- a/core/modules/startup.js
+++ b/core/modules/startup.js
@@ -72,8 +72,6 @@ exports.startup = function() {
 		// Install the scroller
 		$tw.pageScroller = new $tw.utils.PageScroller();
 		document.addEventListener("tw-scroll",$tw.pageScroller,false);
-		// Install the sprite factory
-		$tw.sprite = new $tw.utils.Sprite();
 		// Install the save action handler
 		$tw.wiki.initSavers();
 		document.addEventListener("tw-save-wiki",function(event) {
diff --git a/core/modules/utils/argparser.js b/core/modules/utils/argparser.js
deleted file mode 100644
index fb091b0bc..000000000
--- a/core/modules/utils/argparser.js
+++ /dev/null
@@ -1,117 +0,0 @@
-/*\
-title: $:/core/modules/utils/argparser.js
-type: application/javascript
-module-type: utils
-
-Parse a space-separated string of name:value parameters. Values can be quoted with single quotes, double quotes, double square brackets, or double curly braces.
-
-The parameters are returned in a structure that can be referenced like this:
-
-	(return).byName["name"][0] - First occurance of parameter with a given name
-	(return).byPos[0].n - Name of parameter in first position
-	(return).byPos[0].v.string - Value of parameter in first position
-	(return).byPos[0].v.evaluated - True if the parameter is to be evaluated
-
-Options and their defaults are:
-
-	defaultName: null,
-	defaultValue: null,
-	noNames: false,
-	cascadeDefaults: false,
-	allowEval: true
-
-\*/
-(function(){
-
-/*jslint node: true, browser: true */
-/*global $tw: false */
-"use strict";
-
-var ArgParser = function(argString,options) {
-	options = options || {};
-	var defaultName = options.defaultName,
-		defaultValue = options.defaultValue;
-	var parseToken = function(match,p) {
-			var n;
-			if(match[p]) { // Double quoted
-				n = {string: match[p]};
-			} else if(match[p+1]) { // Single quoted
-				n = {string: match[p+1]};
-			} else if(match[p+2]) { // Double-square-bracket quoted
-				n = {string: match[p+2]};
-			} else if(match[p+3]) { // Double-brace quoted
-				n = {string: match[p+3], evaluated: true};
-			} else if(match[p+4]) { // Unquoted
-				n = {string: match[p+4]};
-			} else if(match[p+5]) { // empty quote
-				n = {string: ""};
-			}
-			return n;
-		};
-	this.byPos = [];
-	var dblQuote = "(?:\"((?:(?:\\\\\")|[^\"])+)\")",
-		sngQuote = "(?:'((?:(?:\\\\\')|[^'])+)')",
-		dblSquare = "(?:\\[\\[((?:\\s|\\S)*?)\\]\\])",
-		dblBrace = "(?:\\{\\{((?:\\s|\\S)*?)\\}\\})",
-		unQuoted = options.noNames ? "([^\"'\\s]\\S*)" : "([^\"':\\s][^\\s:]*)",
-		emptyQuote = "((?:\"\")|(?:''))",
-		skipSpace = "(?:\\s*)",
-		token = "(?:" + dblQuote + "|" + sngQuote + "|" + dblSquare + "|" + dblBrace + "|" + unQuoted + "|" + emptyQuote + ")",
-		re = options.noNames ? new RegExp(token,"mg") : new RegExp(skipSpace + token + skipSpace + "(?:(\\:)" + skipSpace + token + ")?","mg"),
-		match,n,v;
-	do {
-		match = re.exec(argString);
-		if(match) {
-			n = parseToken(match,1);
-			if(options.noNames) {
-				this.byPos.push({n:"", v:n});
-			} else {
-				v = parseToken(match,8);
-				if(v === undefined && defaultName) {
-					v = n;
-					n = defaultName;
-				} else if(v === undefined && defaultValue) {
-					v = defaultValue;
-				}
-				if(n.evaluated === true) {
-					n = "{{" + n.string + "}}";
-				} else if (typeof n === "object" && $tw.utils.hop(n,"string")) {
-					n = n.string;
-				}
-				this.byPos.push({n:n, v:v});
-				if(options.cascadeDefaults) {
-					defaultName = n;
-					defaultValue = v;
-				}
-			}
-		}
-	} while(match);
-	this.byName = {};
-	for(var t=0; t<this.byPos.length; t++) {
-		n = this.byPos[t].n;
-		v = this.byPos[t].v;
-		if($tw.utils.hop(this.byName,n))
-			this.byName[n].push(v);
-		else
-			this.byName[n] = [v];
-	}
-};
-
-// Retrieve the first occurance of a named parameter, or the default if missing
-ArgParser.prototype.getValueByName = function(n) {
-	var v = this.byName[n];
-	return v && v.length > 0 ? v[0] : null;
-};
-
-// Retrieve all the string values as an array
-ArgParser.prototype.getStringValues = function() {
-	var result = [];
-	for(var t=0; t<this.byPos.length; t++) {
-		result.push(this.byPos[t].v.string);
-	}
-	return result;
-};
-
-exports.ArgParser = ArgParser;
-
-})();
diff --git a/core/modules/utils/dom/sprite.js b/core/modules/utils/dom/sprite.js
deleted file mode 100644
index e63d86fe0..000000000
--- a/core/modules/utils/dom/sprite.js
+++ /dev/null
@@ -1,68 +0,0 @@
-/*\
-title: $:/core/modules/utils/dom/sprite.js
-type: application/javascript
-module-type: utils
-
-Animated sprites
-
-\*/
-(function(){
-
-/*jslint node: true, browser: true */
-/*global $tw: false */
-"use strict";
-
-/*
-Create a sprite factory object
-*/
-var Sprite = function() {
-};
-
-/*
-Animates a sprite that moves from the source location to the destination.
-	source: DOM element or {left:,top:,width:,height:} rectangle in viewport coordinates
-	dest: DOM element or {left:,top:,width:,height:} rectangle in viewport coordinates
-	content: content to be displayed in the sprite {text:,style:,class:}
-*/
-Sprite.prototype.fly = function(source,dest,content) {
-	// Create the element
-	var sprite = document.createElement("div");
-	if(content.text) {
-		sprite.appendChild(document.createTextNode(content.text));
-	}
-	if(content.style) {
-		sprite.setAttribute("style",content.style);
-	}
-	if(content["class"]) {
-		sprite["class"] = content["class"];
-	}
-	document.body.appendChild(sprite);
-	// Set the initial position of the sprite
-	var currWidth = sprite.offsetWidth,
-		scale = source.width/currWidth;
-	$tw.utils.setStyle(sprite,[
-		{position: "fixed"},
-		{top: "0px"},
-		{left: "0px"},
-		{transition: "none"},
-		{transformOrigin: "0% 0%"},
-		{transform: "translateX(" + source.left + "px) translateY(" + source.top + "px) scale(" + scale + ")"}
-	]);
-	// Set up a transition event handler to delete the sprite
-	sprite.addEventListener($tw.utils.convertEventName("transitionEnd"),function(event) {
-		sprite.parentNode.removeChild(sprite);
-	},false);
-	// Transition to its new position
-	$tw.utils.forceLayout(sprite);
-	scale = dest.width/currWidth;
-	$tw.utils.setStyle(sprite,[
-		{transition: $tw.utils.roundTripPropertyName("transform") + " " + $tw.config.preferences.animationDurationMs + " ease-in-out, "+
-					"opacity " + $tw.config.preferences.animationDurationMs + " ease-out"},
-		{transformOrigin: "0% 0%"},
-		{transform: "translateX(" + dest.left + "px) translateY(" + dest.top + "px) scale(" + scale + ")"}
-	]);
-};
-
-exports.Sprite = Sprite;
-
-})();