diff --git a/src/util/getDefaults.js b/src/util/getDefaults.js
index 308f73c1..c4ec82cb 100644
--- a/src/util/getDefaults.js
+++ b/src/util/getDefaults.js
@@ -1,3 +1,4 @@
+/** Parses the defaults and gets the input which is available. */
 module.exports = function(info){
   var defaults = {};
   for (var key in info.inputs) {
diff --git a/src/util/pixelSetter.js b/src/util/pixelSetter.js
index ab098575..e8b60f95 100644
--- a/src/util/pixelSetter.js
+++ b/src/util/pixelSetter.js
@@ -1,5 +1,12 @@
+/**  
+ * @param {number} x x-coordinate.
+ * @param {number} y y-coordinate.
+ * @param {object} value array [r, g, b, a]
+ * @param {object} pixels NDarray of pixels.
+ * @description Sets the pixels from 0 through length of value. 
+*/
 module.exports = function(x, y, value, pixels){
   for(let i = 0; i < value.length; i++){
     pixels.set(x, y, i, value[i]);
   }
-};
\ No newline at end of file
+};