diff --git a/dist/js/jsonTree.min.js b/dist/js/jsonTree.min.js
index 82d6dcc..b5d6966 100644
--- a/dist/js/jsonTree.min.js
+++ b/dist/js/jsonTree.min.js
@@ -1 +1 @@
-var jsonTree=function(){function t(){"document"in self&&("classList"in document.createElement("_")&&(!document.createElementNS||"classList"in document.createElementNS("http://www.w3.org/2000/svg","g"))||function(t){if("Element"in t){t=t.Element.prototype;var e=Object,n=String.prototype.trim||function(){return this.replace(/^\s+|\s+$/g,"")},i=Array.prototype.indexOf||function(t){for(var e=0,n=this.length;e<n;e++)if(e in this&&this[e]===t)return e;return-1},r=function(t,e){this.name=t,this.code=DOMException[t],this.message=e},o=function(t,e){if(""===e)throw new r("SYNTAX_ERR","The token must not be empty.");if(/\s/.test(e))throw new r("INVALID_CHARACTER_ERR","The token must not contain space characters.");return i.call(t,e)},s=function(t){var e=n.call(t.getAttribute("class")||"");e=e?e.split(/\s+/):[];for(var i=0,r=e.length;i<r;i++)this.push(e[i]);this._updateClassName=function(){t.setAttribute("class",this.toString())}},a=s.prototype=[],c=function(){return new s(this)};if(r.prototype=Error.prototype,a.item=function(t){return this[t]||null},a.contains=function(t){return!~o(this,t+"")},a.add=function(){var t=arguments,e=0,n=t.length,i=!1;do{var r=t[e]+"";~o(this,r)&&(this.push(r),i=!0)}while(++e<n);i&&this._updateClassName()},a.remove=function(){var t=arguments,e=0,n=t.length,i=!1,r;do{var s=t[e]+"";for(r=o(this,s);~r;)this.splice(r,1),i=!0,r=o(this,s)}while(++e<n);i&&this._updateClassName()},a.toggle=function(t,e){var n=this.contains(t),i=n?!0!==e&&"remove":!1!==e&&"add";return i&&this[i](t),!0===e||!1===e?e:!n},a.replace=function(t,e){var n=o(t+"");~n&&(this.splice(n,1,e),this._updateClassName())},a.toString=function(){return this.join(" ")},e.defineProperty){a={get:c,enumerable:!0,configurable:!0};try{e.defineProperty(t,"classList",a)}catch(n){void 0!==n.number&&-2146823252!==n.number||(a.enumerable=!1,e.defineProperty(t,"classList",a))}}else e.prototype.__defineGetter__&&t.__defineGetter__("classList",c)}}(self),function(){var t=document.createElement("_");if(t.classList.add("c1","c2"),!t.classList.contains("c2")){var e=function(t){var e=DOMTokenList.prototype[t];DOMTokenList.prototype[t]=function(t){var n,i=arguments.length;for(n=0;n<i;n++)t=arguments[n],e.call(this,t)}};e("add"),e("remove")}if(t.classList.toggle("c3",!1),t.classList.contains("c3")){var n=DOMTokenList.prototype.toggle;DOMTokenList.prototype.toggle=function(t,e){return 1 in arguments&&!this.contains(t)==!e?e:n.call(this,t)}}"replace"in document.createElement("_").classList||(DOMTokenList.prototype.replace=function(t,e){var n=this.toString().split(" "),i=n.indexOf(t+"");~i&&(n=n.slice(i),this.remove.apply(this,n),this.add(e),this.add.apply(this,n.slice(1)))}),t=null}())}function e(t,e){var n=document.querySelector(t);n.classList.add("jsonTree"),n.innerHTML=s(e),top=document.querySelectorAll("#top"),top.addEventListener("click",function(t){t.preventDefault(),t.target&&"LI"===t.target.nodeName.toUpperCase()&&o(t.target.childNodes).length>1&&(console.log("yeah"),c(t.target,"selected"))})}function n(t,e){i(t,"li","ul",e),i(t,"ul","li",e)}function i(t,e,n,i){o(document.querySelectorAll(t+" "+e)).forEach(function(t){if(o(t.children).filter(function(t){return t.tagName.toLowerCase()===n.toLowerCase().toString()}).length>0?(t.classList.add("parent"),t.style.cursor="pointer"):t.style.cursor="auto",i){var e=i(t);t.classList.add("depth-"+e)}})}function r(t){return t.parentNode&&"top"===t.parentNode.getAttribute("data-id")?null==t?0:1+r(t.parentNode):0}function o(t){return Array.prototype.slice.call(t)}function s(t){var e,n="";t=a(JSON.stringify(t)),t=JSON.parse(t),n+='<ul data-id="top">';for(e in t)n+="<li>"+e+": ","object"==typeof t[e]?n+=s(t[e]):n+=t[e],n+="</li>";return n+="</ul>"}function a(t){var e={"&":"&amp;","<":"&lt;",">":"&gt;"};return t.replace(/[&<>]/g,function(t){return e[t]||t})}function c(t,e){t&&t.classList.toggle(e)}return{init:function(i,r,o){if(t(),"object"==typeof i)e(r,i),n(r,o);else{var s=new XMLHttpRequest;s.open("GET",i,!0),s.send(),s.addEventListener("load",function(){e(r,JSON.parse(s.responseText)),n(r,o)})}}}}();
\ No newline at end of file
+class jsonTree{constructor(e,t,s){if("object"==typeof e)this.generateTree(t,e),this.classify(t,s);else{const r=new XMLHttpRequest;r.open("GET",e,!0),r.send(),r.addEventListener("load",()=>{this.generateTree(t,JSON.parse(r.responseText)),this.classify(t,s)})}}generateTree(e,t){const s=document.querySelector(e);s.classList.add("jsonTree"),s.innerHTML=this.json2html(t);const r=document.querySelector('[data-id="top"]');r.addEventListener("click",e=>{e.preventDefault(),e.target&&"LI"===e.target.nodeName.toUpperCase()&&Array.from(e.target.childNodes).length>1&&this.toggleClass(e.target,"selected")})}classify(e,t){this.applyClasses(e,"li","ul",t),this.applyClasses(e,"ul","li",t)}applyClasses(e,t,s,r){const a=Array.from(document.querySelectorAll(`${e} ${t}`));a.forEach(function(e){const t=Array.from(e.children).filter(e=>e.tagName.toLowerCase()===s.toLowerCase().toString());if(t.length>0?(e.classList.add("parent"),e.style.cursor="pointer"):e.style.cursor="auto",r){const t=r(e);e.classList.add("depth-"+t)}})}depth(e){return e.parentNode&&"top"===e.parentNode.getAttribute("data-id")?null==e?0:1+depth(e.parentNode):0}json2html(e){let t,s="";e=this.htmlEscape(JSON.stringify(e)),e=JSON.parse(e),s+='<ul data-id="top">';for(t in e)s+="<li>"+t+": ","object"==typeof e[t]?s+=this.json2html(e[t]):s+=e[t],s+="</li>";return s+="</ul>"}htmlEscape(e){const t={"&":"&amp;","<":"&lt;",">":"&gt;"};return e.replace(/[&<>]/g,function(e){return t[e]||e})}toggleClass(e,t){e&&e.classList.toggle(t)}}
\ No newline at end of file
diff --git a/package.json b/package.json
index 6396530..c2db066 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,14 @@
 {
   "name": "jsontreejs",
-  "version": "1.6.1",
+  "version": "3.0.0",
   "description": "a lightweight dependency free javascript micro-library",
-  "main": "dist/jsonTree.js",
+  "main": "dist/js/jsonTree.min.js",
   "directories": {
-    "example": "example"
+    "test": "test"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "build": "uglifyjs src/jsonTree.js --compress unused=false --mangle --output dist/js/jsonTree.min.js && uglifycss src/jsonTree.css > dist/css/jsonTree.min.css"
+    "build": "./node_modules/uglify-es/bin/uglifyjs src/jsonTree.js --compress unused=false --mangle --output dist/js/jsonTree.min.js && uglifycss src/jsonTree.css > dist/css/jsonTree.min.css"
   },
   "repository": {
     "type": "git",
@@ -19,13 +19,13 @@
     "jsonTree",
     "tree"
   ],
-  "author": "Max Leiter <mleiter18@priorypanther.com> (http://maxleiter.github.io/)",
+  "author": "Max Leiter <mleiter18@priorypanther.com> (https://maxleiter.com/)",
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/MaxLeiter/jsonTree/issues"
   },
   "devDependencies": {
-    "uglify-js": "^3.1.10",
+    "uglify-es": "3.1.10",
     "uglifycss": "0.0.27"
   }
 }
diff --git a/src/jsonTree.js b/src/jsonTree.js
index 1f47228..83e98c8 100644
--- a/src/jsonTree.js
+++ b/src/jsonTree.js
@@ -3,85 +3,71 @@
 * jsonTree: A dependency-free lightweight vanilla Javascript library to display JSON in an HTML unordered list.
 **/
 
-var jsonTree = (function() {
+class jsonTree {
 	/**
 	* json: URL for json file or a JSON object
 	* selector: the elements selector to apply the tree to
 	* depth: bool to add a "depth-#" class, can increase loading times
 	**/
-	return {
-		init: function(json, selector, depth) {
-			classList();
-
-			// It's not a URL, so let's skip the XMLHttpRequest
-			if (typeof json === "object") {
-				generateTree(selector, json);
-				classify(selector, depth);
-			} else {
-				var request = new XMLHttpRequest();
-				request.open("GET", json, true);
-				request.send();
-				request.addEventListener("load", function() {
-					generateTree(selector, JSON.parse(request.responseText));
-					classify(selector, depth);
-				});
-			}
+	constructor(json, selector, depth) {
+		// It's not a URL, so let's skip the XMLHttpRequest
+		if (typeof json === "object") {
+			this.generateTree(selector, json);
+			this.classify(selector, depth);
+		} else {
+			const request = new XMLHttpRequest();
+			request.open("GET", json, true);
+			request.send();
+			request.addEventListener("load", () => {
+				this.generateTree(selector, JSON.parse(request.responseText));
+				this.classify(selector, depth);
+			});
 		}
 	}
 
-	/* classList.js for old browsers */
-	function classList() {
-		/*! @source http://purl.eligrey.com/github/classList.js/blob/master/classList.js */
-		"document"in self&&("classList"in document.createElement("_")&&(!document.createElementNS||"classList"in document.createElementNS("http://www.w3.org/2000/svg","g"))||function(a){if("Element"in a){a=a.Element.prototype;var h=Object,l=String.prototype.trim||function(){return this.replace(/^\s+|\s+$/g,"")},n=Array.prototype.indexOf||function(c){for(var b=0,k=this.length;b<k;b++)if(b in this&&this[b]===c)return b;return-1},f=function(c,b){this.name=c;this.code=DOMException[c];this.message=b},e=function(c,
-		b){if(""===b)throw new f("SYNTAX_ERR","The token must not be empty.");if(/\s/.test(b))throw new f("INVALID_CHARACTER_ERR","The token must not contain space characters.");return n.call(c,b)},g=function(c){var b=l.call(c.getAttribute("class")||"");b=b?b.split(/\s+/):[];for(var k=0,e=b.length;k<e;k++)this.push(b[k]);this._updateClassName=function(){c.setAttribute("class",this.toString())}},d=g.prototype=[],m=function(){return new g(this)};f.prototype=Error.prototype;d.item=function(c){return this[c]||
-		null};d.contains=function(c){return!~e(this,c+"")};d.add=function(){var c=arguments,b=0,k=c.length,d=!1;do{var a=c[b]+"";~e(this,a)&&(this.push(a),d=!0)}while(++b<k);d&&this._updateClassName()};d.remove=function(){var c=arguments,b=0,d=c.length,a=!1,f;do{var g=c[b]+"";for(f=e(this,g);~f;)this.splice(f,1),a=!0,f=e(this,g)}while(++b<d);a&&this._updateClassName()};d.toggle=function(c,b){var a=this.contains(c),d=a?!0!==b&&"remove":!1!==b&&"add";if(d)this[d](c);return!0===b||!1===b?b:!a};d.replace=function(c,
-		b){var a=e(c+"");~a&&(this.splice(a,1,b),this._updateClassName())};d.toString=function(){return this.join(" ")};if(h.defineProperty){d={get:m,enumerable:!0,configurable:!0};try{h.defineProperty(a,"classList",d)}catch(c){if(void 0===c.number||-2146823252===c.number)d.enumerable=!1,h.defineProperty(a,"classList",d)}}else h.prototype.__defineGetter__&&a.__defineGetter__("classList",m)}}(self),function(){var a=document.createElement("_");a.classList.add("c1","c2");if(!a.classList.contains("c2")){var h=
-		function(a){var f=DOMTokenList.prototype[a];DOMTokenList.prototype[a]=function(a){var e,d=arguments.length;for(e=0;e<d;e++)a=arguments[e],f.call(this,a)}};h("add");h("remove")}a.classList.toggle("c3",!1);if(a.classList.contains("c3")){var l=DOMTokenList.prototype.toggle;DOMTokenList.prototype.toggle=function(a,f){return 1 in arguments&&!this.contains(a)===!f?f:l.call(this,a)}}"replace"in document.createElement("_").classList||(DOMTokenList.prototype.replace=function(a,f){var e=this.toString().split(" "),
-		g=e.indexOf(a+"");~g&&(e=e.slice(g),this.remove.apply(this,e),this.add(f),this.add.apply(this,e.slice(1)))});a=null}());
-	}
-
 	/** Generate the DOM elements for the tree**/
-	function generateTree(selector, json) {
-		var element = document.querySelector(selector);
+	generateTree(selector, json) {
+		const element = document.querySelector(selector);
 		element.classList.add("jsonTree");
-		element.innerHTML = json2html(json);
-		top = document.querySelectorAll("#top");
-		top.addEventListener("click", function(e) {
+		element.innerHTML = this.json2html(json);
+		const top = document.querySelector("[data-id=\"top\"]");
+		top.addEventListener("click", (e) => {
 			e.preventDefault();
 			if (e.target && e.target.nodeName.toUpperCase() === "LI") {
-				if (toArray(e.target.childNodes).length > 1) {
-					toggleClass(e.target, "selected");
+				if (Array.from(e.target.childNodes).length > 1) {
+					this.toggleClass(e.target, "selected");
 				}
 			}
 		});
 	}
 
-	function classify(selector, depth) {
-		applyClasses(selector, "li", "ul", depth);
-		applyClasses(selector, "ul", "li", depth);
+	classify(selector, depth) {
+		this.applyClasses(selector, "li", "ul", depth);
+		this.applyClasses(selector, "ul", "li", depth);
 	}
 
 	/** Applies classes to the element, including "parent" and "depth-#" **/
-	function applyClasses(selector, parent, child, depth) {
-		var parents = toArray(document.querySelectorAll(selector + " " + parent));
+	applyClasses(selector, parent, child, depth) {
+		const parents = Array.from(document.querySelectorAll(`${selector} ${parent}`));
 		parents.forEach(function(element){
-			var filter = toArray(element.children).filter(function(el) { return el.tagName.toLowerCase() === child.toLowerCase().toString(); });
-				if (filter.length > 0) { // It's a parent!
-					element.classList.add("parent");
-					element.style.cursor = "pointer";
-				} else {
-					element.style.cursor = "auto";
-				}
+			const filter = Array.from(element.children).filter((el) => el.tagName.toLowerCase() === child.toLowerCase().toString());
+			if (filter.length > 0) { // It's a parent!
+				element.classList.add("parent");
+				element.style.cursor = "pointer";
+			} else {
+				element.style.cursor = "auto";
+			}
+
 			// The amount of parents, "#top" is assigned by json2html
 			if (depth) {
-				var count = depth(element);
+				const count = depth(element);
 				element.classList.add("depth-" + count);
 			}
 		});
 	}
 
 	/** Returns the amount of parents of an element **/
-	function depth(ele) {
+	depth(ele) {
 		if (ele.parentNode && ele.parentNode.getAttribute("data-id") === "top") {
 			return ele == null ? 0 : 1 + depth(ele.parentNode);
 		} else {
@@ -89,21 +75,16 @@ var jsonTree = (function() {
 		}
 	}
 
-	/** Converts HTMLCollection to array (for ease of use with functions like forEach) **/
-	function toArray(o) {
-		return Array.prototype.slice.call(o);
-	}
-
 	/** Returns a JSON file in HTML tokens **/
-	function json2html(json) {
-		var i, html = "";
-		json = htmlEscape(JSON.stringify(json));
+	json2html(json) {
+		let i, html = "";
+		json = this.htmlEscape(JSON.stringify(json));
 		json = JSON.parse(json);
 		html += "<ul data-id=\"top\">";
 		for (i in json) {
 			html += "<li>"+i+": ";
 			if (typeof json[i] === "object") {
-				html += json2html(json[i]);
+				html += this.json2html(json[i]);
 			}
 			else html += json[i];
 			html += "</li>";
@@ -113,8 +94,8 @@ var jsonTree = (function() {
 	}
 
 	/** To stop XSS attacks by using JSON with HTML nodes **/
-	function htmlEscape(str) {
-		var tagsToReplace = {
+	htmlEscape(str) {
+		const tagsToReplace = {
 			"&": "&amp;",
 			"<": "&lt;",
 			">": "&gt;"
@@ -125,10 +106,10 @@ var jsonTree = (function() {
 	}
 
 	/** Toggles an elements class **/
-	function toggleClass(el, className) {
+	toggleClass(el, className) {
 		if (el) {
 			el.classList.toggle(className);
 		}
 	}
-})();
+}
 
diff --git a/test/test.html b/test/test.html
index 846514e..0e90751 100644
--- a/test/test.html
+++ b/test/test.html
@@ -28,7 +28,7 @@
 	var button = document.querySelector("#exec");
 	button.addEventListener("click", function(e) {
 		e.preventDefault();
-		jsonTree.init(document.getElementById("json").value, "#example", false);
+		let tree = new jsonTree(document.getElementById("json").value, "#example", false);
 	});
 	document.getElementById("json").value = "https://raw.githubusercontent.com/KnightOS/knightos.org/gh-pages/documentation/reference/data.json";
 </script>