diff --git a/binheap.js b/binheap.js
index fd6e252..c0cf34f 100644
--- a/binheap.js
+++ b/binheap.js
@@ -58,5 +58,3 @@ class BinHeap {
 	}
 }
 
-window.BinHeap = BinHeap
-
diff --git a/dll.js b/dll.js
index 1a22d85..422270b 100644
--- a/dll.js
+++ b/dll.js
@@ -170,5 +170,3 @@ class DLL {
 	toString() { return this.toArray().toString() }
 }
 
-window.DLL = DLL
-
diff --git a/graph.js b/graph.js
index 0ab3bd9..d39a6b8 100644
--- a/graph.js
+++ b/graph.js
@@ -5,8 +5,6 @@ class Cxn {
 	}
 }
 
-window.Cxn = Cxn
-
 class SearchData {
 	constructor(id, dist = Infinity, last = undefined, custom = {}) {
 		this.id = id
@@ -39,8 +37,6 @@ class SearchData {
 	}
 }
 
-window.SearchData = SearchData
-
 class Node {
 	static GLOBAL_ID = 0
 
@@ -134,5 +130,3 @@ class Node {
 	}
 }
 
-window.Node = Node
-
diff --git a/grid.js b/grid.js
index 5c587e9..dd99d68 100644
--- a/grid.js
+++ b/grid.js
@@ -176,5 +176,3 @@ class Grid {
 	print(sep = "\t", ...pts) { console.log(this.toString(sep, pts)) }
 }
 
-window.Grid = Grid
-
diff --git a/out.js b/out.js
index f50aca2..5f4cef8 100644
--- a/out.js
+++ b/out.js
@@ -170,8 +170,6 @@ class DLL {
 	toString() { return this.toArray().toString() }
 }
 
-window.DLL = DLL
-
 class Point {
 	constructor(x, y) {
 		this.x = x
@@ -231,7 +229,7 @@ class Point {
 	toString() { return this.x + "," + this.y }
 }
 
-window.Pt = window.Point = Point
+Pt = Point
 
 class Grid {
 	constructor(w, h, fill = 0) {
@@ -411,8 +409,6 @@ class Grid {
 	print(sep = "\t", ...pts) { console.log(this.toString(sep, pts)) }
 }
 
-window.Grid = Grid
-
 class BinHeap {
 	constructor(cond = (p, c) => p < c) {
 		this.cond = cond
@@ -473,8 +469,6 @@ class BinHeap {
 	}
 }
 
-window.BinHeap = BinHeap
-
 class Cxn {
 	constructor(dest, weight = 1) {
 		this.dest = dest
@@ -482,8 +476,6 @@ class Cxn {
 	}
 }
 
-window.Cxn = Cxn
-
 class SearchData {
 	constructor(id, dist = Infinity, last = undefined, custom = {}) {
 		this.id = id
@@ -516,8 +508,6 @@ class SearchData {
 	}
 }
 
-window.SearchData = SearchData
-
 class Node {
 	static GLOBAL_ID = 0
 
@@ -611,8 +601,6 @@ class Node {
 	}
 }
 
-window.Node = Node
-
 Object.defineProperty(Object.prototype, "copyDeep", {
 	value: function() {
 		return JSON.parse(JSON.stringify(this))
@@ -715,7 +703,7 @@ class PointArray extends Array {
 	}
 }
 
-window.PtArray = window.PointArray = PointArray
+PtArray = PointArray
 
 Object.defineProperty(Array.prototype, "pt", {
 	get: function() {
@@ -766,7 +754,7 @@ Object.defineProperties(PointArray.prototype, {
 	}
 })
 
-window.utils = {
+utils = {
 	fetch: (url) => fetch(url).then(e => e.text()),
 	fetchEval: (url) => utils.fetch(url).then(e => eval(e)),
 	signAgnosticInclusiveRange: (a, b, s = Math.sign(a - b)) => Array((a - b) * s + 1).fill().map((_, i) => a - i * s),
diff --git a/proto.js b/proto.js
index bea17e0..0f3310b 100644
--- a/proto.js
+++ b/proto.js
@@ -100,7 +100,7 @@ class PointArray extends Array {
 	}
 }
 
-window.PtArray = window.PointArray = PointArray
+PtArray = PointArray
 
 Object.defineProperty(Array.prototype, "pt", {
 	get: function() {
diff --git a/pt.js b/pt.js
index df10c27..5652372 100644
--- a/pt.js
+++ b/pt.js
@@ -57,5 +57,5 @@ class Point {
 	toString() { return this.x + "," + this.y }
 }
 
-window.Pt = window.Point = Point
+Pt = Point
 
diff --git a/utils.js b/utils.js
index 6bc7409..3a80263 100644
--- a/utils.js
+++ b/utils.js
@@ -1,4 +1,4 @@
-window.utils = {
+utils = {
 	fetch: (url) => fetch(url).then(e => e.text()),
 	fetchEval: (url) => utils.fetch(url).then(e => eval(e)),
 	signAgnosticInclusiveRange: (a, b, s = Math.sign(a - b)) => Array((a - b) * s + 1).fill().map((_, i) => a - i * s),