diff --git a/src/renderer/frame/handlers.cljs b/src/renderer/frame/handlers.cljs
index 001eff02..b448d2f3 100644
--- a/src/renderer/frame/handlers.cljs
+++ b/src/renderer/frame/handlers.cljs
@@ -1,11 +1,11 @@
 (ns renderer.frame.handlers
   (:require
    [clojure.core.matrix :as mat]
-   [goog.math]
    [renderer.element.handlers :as el]
    [renderer.element.utils :as el.utils]
    [renderer.tools.base :as tools]
-   [renderer.utils.bounds :as bounds]))
+   [renderer.utils.bounds :as bounds]
+   [renderer.utils.math :as math]))
 
 (defn pan
   [{:keys [active-document] :as db} offset]
@@ -18,7 +18,7 @@
 (defn zoom-in-position
   [{:keys [active-document] :as db} factor pos]
   (let [zoom (get-in db [:documents active-document :zoom])
-        updated-zoom (goog.math.clamp (* zoom factor) 0.01 100)
+        updated-zoom (math/clamp (* zoom factor) 0.01 100)
         updated-factor (/ updated-zoom zoom)
         pan (get-in db [:documents active-document :pan])
         updated-pan (mat/sub (mat/div pan updated-factor)
diff --git a/src/renderer/tools/blob.cljs b/src/renderer/tools/blob.cljs
index e20f193a..ee5b8732 100644
--- a/src/renderer/tools/blob.cljs
+++ b/src/renderer/tools/blob.cljs
@@ -4,7 +4,6 @@
    ["blobs/v2" :as blobs]
    ["svgpath" :as svgpath]
    [clojure.core.matrix :as mat]
-   [goog.math]
    [re-frame.core :as rf]
    [renderer.attribute.hierarchy :as attr.hierarchy]
    [renderer.attribute.length :as length]
@@ -36,7 +35,7 @@
 
 (defmethod attr.hierarchy/form-element ::seed
   [k v disabled?]
-  (let [random-seed (goog.math/randomInt 1000000)]
+  (let [random-seed (rand-int 1000000)]
     [:<>
      [attr.v/form-input {:key k
                          :value v
@@ -98,7 +97,7 @@
         radius (mat/distance adjusted-pointer-pos adjusted-pointer-offset)
         attrs {::x (- offset-x radius)
                ::y (- offset-y radius)
-               ::seed (goog.math/randomInt 1000000)
+               ::seed (rand-int 1000000)
                ::extraPoints 8
                ::randomness 4
                ::size (* radius 2)
diff --git a/src/renderer/tools/brush.cljs b/src/renderer/tools/brush.cljs
index be1a75b5..0e93ca0b 100644
--- a/src/renderer/tools/brush.cljs
+++ b/src/renderer/tools/brush.cljs
@@ -4,7 +4,7 @@
    ["perfect-freehand" :refer [getStroke]]
    ["svg-path-bbox" :as svg-path-bbox]
    [clojure.core.matrix :as mat]
-   [goog.math]
+   [clojure.core.matrix.stats :as mat.stats]
    [renderer.attribute.color :as attr.color]
    [renderer.attribute.hierarchy :as attr.hierarchy]
    [renderer.attribute.range :as attr.range]
@@ -110,8 +110,8 @@
             d (str
                "M" (units/->fixed (first a)) "," (units/->fixed (second a))
                " Q" (units/->fixed (first b)) "," (units/->fixed (second b))
-               " " (units/->fixed (goog.math/average (first b) (first c))) ","
-               (units/->fixed (goog.math/average (second b) (second c))) " T")]
+               " " (units/->fixed (mat.stats/mean [(first b) (first c)])) ","
+               (units/->fixed (mat.stats/mean [(second b) (second c)])) " T")]
         (reduce-kv
          (fn [result index]
            (if (or (= len (inc index)) (< index 2))
@@ -119,11 +119,9 @@
              (let [a (nth points index)
                    b (nth points (inc index))]
                (str result
-                    (units/->fixed (goog.math/average (first a)
-                                                      (first b)))
+                    (units/->fixed (mat.stats/mean [(first a) (first b)]))
                     ","
-                    (units/->fixed (goog.math/average (second a)
-                                                      (second b)))
+                    (units/->fixed (mat.stats/mean [(second a) (second b)]))
                     " ")))) d points)))))
 
 (defn points->path
diff --git a/src/renderer/tools/flower.cljs b/src/renderer/tools/flower.cljs
index 2bd34ef3..3a0b1330 100644
--- a/src/renderer/tools/flower.cljs
+++ b/src/renderer/tools/flower.cljs
@@ -3,7 +3,6 @@
    https://gist.github.com/Askarizadeh986/2bb64fe3a134236fe6ff30875cf81d00
    License https://codepen.io/license/pen/XGLZLp"
   (:require
-   [goog.math]
    [renderer.tools.base :as tools]))
 
 (derive :flower ::tools/custom)
diff --git a/src/renderer/utils/math.cljs b/src/renderer/utils/math.cljs
new file mode 100644
index 00000000..fc9f66c1
--- /dev/null
+++ b/src/renderer/utils/math.cljs
@@ -0,0 +1,5 @@
+(ns renderer.utils.math)
+
+(defn clamp
+  [x minimum maximum]
+  (min (max x minimum) maximum))