diff --git a/mods/customtemptools.js b/mods/customtemptools.js
new file mode 100644
index 00000000..00dbcb8f
--- /dev/null
+++ b/mods/customtemptools.js
@@ -0,0 +1,50 @@
+var ct = 100
+
+elements.customtemp = {
+    color: ["#FF0000", "#FF6600", "#FFCC00", "#FFFF00", "#CCFF00", "#66FF00", "#00FF00", "#00FF66", "#00FFCC", "#00FFFF"],
+    onSelect: function() {
+        var answer4 = parseInt(prompt("Please input the desired temperature to reach.",(ct||undefined)));
+        if (!answer4) { return }
+        ct = answer4;
+        if (isNaN(answer4)) {
+            ct = 100
+        }
+    },
+    tool: function(pixel) {
+        pixel.temp = ct,
+		pixelTempCheck(pixel)
+    },
+    category: "tools",
+};
+elements.customheat = {
+    color: ["#FF0000", "#FFFFFF", "#FF0000"],
+    onSelect: function() {
+        var answer4 = parseInt(prompt("Please input the desired temperature increase per tick. (In celsius)",(ct|undefined)));
+        if (!answer4) { return }
+        ct = answer4;
+        if (isNaN(answer4)) {
+            ct = 100
+        }
+    },
+    tool: function(pixel) {
+        pixel.temp = pixel.temp + ct,
+		pixelTempCheck(pixel)
+    },
+    category: "tools",
+};
+elements.customcool = {
+    color: ["#0000FF", "#FFFFFF", "#0000FF"],
+    onSelect: function() {
+        var answer4 = parseInt(prompt("Please input the desired temperature decrease per tick. (In celsius)",(cc|undefined)));
+        if (!answer4) { return }
+        ct = answer4;
+        if (isNaN(answer4)) {
+            ct = 100
+        }
+    },
+    tool: function(pixel) {
+        pixel.temp = pixel.temp - ct,
+		pixelTempCheck(pixel)
+    },
+    category: "tools",
+};