diff --git a/packages/editor-ui/src/components/MainSidebar.vue b/packages/editor-ui/src/components/MainSidebar.vue
index 71388c2cd3..57096c0f29 100644
--- a/packages/editor-ui/src/components/MainSidebar.vue
+++ b/packages/editor-ui/src/components/MainSidebar.vue
@@ -443,13 +443,28 @@ export default mixins(
 				} else if (key === 'workflow-settings') {
 					this.workflowSettingsDialogVisible = true;
 				} else if (key === 'workflow-new') {
-					this.$router.push({ name: 'NodeViewNew' });
+					const workflowId = this.$store.getters.workflowId;
+					const result = await this.dataHasChanged(workflowId);
+					if(result) {
+						const importConfirm = await this.confirmMessage(`When you switch workflows your current workflow changes will be lost.`, 'Save your Changes?', 'warning', 'Yes, switch workflows and forget changes');
+						if (importConfirm === true) {
+							this.$router.push({ name: 'NodeViewNew' });
 
-					this.$showMessage({
-						title: 'Workflow created',
-						message: 'A new workflow got created!',
-						type: 'success',
-					});
+							this.$showMessage({
+								title: 'Workflow created',
+								message: 'A new workflow got created!',
+								type: 'success',
+							});
+						}
+					} else {
+						this.$router.push({ name: 'NodeViewNew' });
+
+						this.$showMessage({
+							title: 'Workflow created',
+							message: 'A new workflow got created!',
+							type: 'success',
+						});
+					}
 				} else if (key === 'credentials-open') {
 					this.credentialOpenDialogVisible = true;
 				} else if (key === 'credentials-new') {
diff --git a/packages/editor-ui/src/components/WorkflowOpen.vue b/packages/editor-ui/src/components/WorkflowOpen.vue
index 9592ecb4d5..9ef5e94eb0 100644
--- a/packages/editor-ui/src/components/WorkflowOpen.vue
+++ b/packages/editor-ui/src/components/WorkflowOpen.vue
@@ -33,6 +33,7 @@ import WorkflowActivator from '@/components/WorkflowActivator.vue';
 
 import { restApi } from '@/components/mixins/restApi';
 import { genericHelpers } from '@/components/mixins/genericHelpers';
+import { workflowHelpers } from '@/components/mixins/workflowHelpers';
 import { showMessage } from '@/components/mixins/showMessage';
 import { IWorkflowShortResponse } from '@/Interface';
 
@@ -42,6 +43,7 @@ export default mixins(
 	genericHelpers,
 	restApi,
 	showMessage,
+	workflowHelpers,
 ).extend({
 	name: 'WorkflowOpen',
 	props: [
@@ -87,9 +89,20 @@ export default mixins(
 			this.$emit('closeDialog');
 			return false;
 		},
-		openWorkflow (data: IWorkflowShortResponse, column: any) { // tslint:disable-line:no-any
+		async openWorkflow (data: IWorkflowShortResponse, column: any) { // tslint:disable-line:no-any
 			if (column.label !== 'Active') {
-				this.$emit('openWorkflow', data.id);
+				const workflowId = this.$store.getters.workflowId;
+				const result = await this.dataHasChanged(workflowId);
+				if(result) {
+					const importConfirm = await this.confirmMessage(`When you switch workflows your current workflow changes will be lost.`, 'Save your Changes?', 'warning', 'Yes, switch workflows and forget changes');
+					if (importConfirm === false) {
+						return;
+					} else {
+						this.$emit('openWorkflow', data.id);
+					}
+				} else {
+					this.$emit('openWorkflow', data.id);
+				}
 			}
 		},
 		openDialog () {
diff --git a/packages/editor-ui/src/components/mixins/workflowHelpers.ts b/packages/editor-ui/src/components/mixins/workflowHelpers.ts
index 507d6d31e4..76ad77cdb9 100644
--- a/packages/editor-ui/src/components/mixins/workflowHelpers.ts
+++ b/packages/editor-ui/src/components/mixins/workflowHelpers.ts
@@ -22,6 +22,7 @@ import {
 	INodeTypesMaxCount,
 	INodeUi,
 	IWorkflowData,
+	IWorkflowDb,
 	IWorkflowDataUpdate,
 	XYPositon,
 } from '../../Interface';
@@ -30,6 +31,8 @@ import { restApi } from '@/components/mixins/restApi';
 import { nodeHelpers } from '@/components/mixins/nodeHelpers';
 import { showMessage } from '@/components/mixins/showMessage';
 
+import { isEqual } from 'lodash';
+
 import mixins from 'vue-typed-mixins';
 
 export const workflowHelpers = mixins(
@@ -478,5 +481,31 @@ export const workflowHelpers = mixins(
 					node.position[1] += offsetPosition[1];
 				}
 			},
+			async dataHasChanged(id: string) {
+				const currentData = await this.getWorkflowDataToSave();
+
+				let data: IWorkflowDb;
+				data = await this.restApi().getWorkflow(id);
+
+				if(data !== undefined) {
+					console.log(currentData);
+					console.log(data);
+					const x = {
+						nodes: data.nodes,
+						connections: data.connections,
+						settings: data.settings,
+						name: data.name
+					};
+					const y = {
+						nodes: currentData.nodes,
+						connections: currentData.connections,
+						settings: currentData.settings,
+						name: currentData.name
+					};
+					return !isEqual(x, y);
+				}
+
+				return true;
+			},
 		},
 	});
diff --git a/packages/editor-ui/src/views/NodeView.vue b/packages/editor-ui/src/views/NodeView.vue
index 573849eb39..8ce1378d52 100644
--- a/packages/editor-ui/src/views/NodeView.vue
+++ b/packages/editor-ui/src/views/NodeView.vue
@@ -126,7 +126,7 @@ import RunData from '@/components/RunData.vue';
 
 import mixins from 'vue-typed-mixins';
 
-import { debounce } from 'lodash';
+import { debounce, isEqual } from 'lodash';
 import axios from 'axios';
 import {
 	IConnection,
@@ -330,6 +330,8 @@ export default mixins(
 				this.$store.commit('setWorkflowSettings', data.settings || {});
 
 				await this.addNodes(data.nodes, data.connections);
+
+				return data;
 			},
 			mouseDown (e: MouseEvent) {
 				// Save the location of the mouse click
@@ -1309,6 +1311,7 @@ export default mixins(
 				if (this.$route.name === 'ExecutionById') {
 					// Load an execution
 					const executionId = this.$route.params.id;
+
 					await this.openExecution(executionId);
 				} else {
 					// Load a workflow
@@ -1316,7 +1319,6 @@ export default mixins(
 					if (this.$route.params.name) {
 						workflowId = this.$route.params.name;
 					}
-
 					if (workflowId !== null) {
 						// Open existing workflow
 						await this.openWorkflow(workflowId);
@@ -1328,10 +1330,22 @@ export default mixins(
 
 				document.addEventListener('keydown', this.keyDown);
 				document.addEventListener('keyup', this.keyUp);
-				window.onbeforeunload = this.confirmSave;
-			},
-			async confirmSave(e: Event) {
-				window.confirm();
+
+				window.addEventListener("beforeunload", (e) => {
+					let workflowId = null as string | null;
+					if (this.$route.params.name) {
+						workflowId = this.$route.params.name;
+					}
+					if(workflowId !== null) {
+						//const dataHasChanged = await this.dataHasChanged(workflowId);
+					}
+
+					const confirmationMessage = 'It looks like you have been editing something. '
+											+ 'If you leave before saving, your changes will be lost.';
+
+					(e || window.event).returnValue = confirmationMessage; //Gecko + IE
+					return confirmationMessage; //Gecko + Webkit, Safari, Chrome etc.
+				});
 			},
 			__addConnection (connection: [IConnection, IConnection], addVisualConnection = false) {
 				if (addVisualConnection === true) {
@@ -1876,13 +1890,13 @@ export default mixins(
 
 		async mounted () {
 			this.$root.$on('importWorkflowData', async (data: IDataObject) => {
-				await this.importWorkflowData(data.data as IWorkflowDataUpdate);
+				const resData = await this.importWorkflowData(data.data as IWorkflowDataUpdate);
 			});
 
 			this.$root.$on('importWorkflowUrl', async (data: IDataObject) => {
 				const workflowData = await this.getWorkflowDataFromUrl(data.url as string);
 				if (workflowData !== undefined) {
-					await this.importWorkflowData(workflowData);
+					const resData = await this.importWorkflowData(workflowData);
 				}
 			});