diff --git a/lib/edit/editsStore.js b/lib/edit/editsStore.js
index 396b1fa..e571862 100644
--- a/lib/edit/editsStore.js
+++ b/lib/edit/editsStore.js
@@ -1,6 +1,6 @@
 "use strict"
 
-define(["esri/graphic"],function(Graphic)
+define(["esri/graphic"], function(Graphic)
 {
 	/* private consts */
 	var EDITS_QUEUE_KEY = "esriEditsQueue";
@@ -19,6 +19,19 @@ define(["esri/graphic"],function(Graphic)
 		UPDATE: "update",
 		DELETE:"delete",
 
+		isSupported: function() 
+		{
+			// http://stackoverflow.com/questions/11214404/how-to-detect-if-browser-supports-html5-local-storage
+			var mod = 'esriLocalStorageTest';
+			try {
+				window.localStorage.setItem(mod, mod);
+				window.localStorage.removeItem(mod);
+				return true;
+			} catch(e) {
+				return false;
+    		}
+    	},
+
 		pushEdit: function(operation,layer,graphic)
 		{
 			var edit = {
@@ -126,6 +139,24 @@ define(["esri/graphic"],function(Graphic)
 			return editToRedo;
 		},
 
+		getEditsStoreSizeBytes: function()
+		{
+			return window.localStorage.getItem(EDITS_QUEUE_KEY).length +
+				window.localStorage.getItem(REDO_STACK_KEY).length; 
+
+		},
+
+		getLocalStorageSizeBytes: function()
+		{
+			var bytes = 0;
+			for( var key in window.localStorage )
+			{
+				var value = window.localStorage.getItem(key);
+				bytes += value.length;
+			}
+			return bytes;
+		},
+
 		//
 		// internal methods
 		//
diff --git a/test/spec/editsStoreSpec.js b/test/spec/editsStoreSpec.js
index c851483..2ed046a 100644
--- a/test/spec/editsStoreSpec.js
+++ b/test/spec/editsStoreSpec.js
@@ -190,6 +190,14 @@ describe("Internal Methods", function()
 
 describe("Public Interface", function()
 {
+	describe("Support detection", function()
+	{
+		it("detect local storage support", function()
+		{
+			expect(g_editsStore.isSupported()).toBeTruthy();
+		})
+	});
+	
 	describe("Edit queue management", function()
 	{
 		describe("Normal edits", function()
@@ -420,6 +428,23 @@ describe("Public Interface", function()
 			});
 		});
 	});
+
+	describe("Local Storage size", function()
+	{
+		var usedBytes, totalBytes;
+
+		it("report edit store size", function()
+		{
+			usedBytes = g_editsStore.getEditsStoreSizeBytes();
+			expect(usedBytes).toBe(678);
+		});
+
+		it("report total local storage size", function()
+		{
+			totalBytes = g_editsStore.getLocalStorageSizeBytes();
+			expect(usedBytes).not.toBeGreaterThan(totalBytes);
+		})
+	})
 });
 
 describe("Reset store", function()