diff --git a/packages/editor-ui/package.json b/packages/editor-ui/package.json
index 2f381b5740..69eb7c1521 100644
--- a/packages/editor-ui/package.json
+++ b/packages/editor-ui/package.json
@@ -27,6 +27,7 @@
   "dependencies": {
     "@fontsource/open-sans": "^4.5.0",
     "n8n-design-system": "~0.5.0",
+    "monaco-editor": "^0.29.1",
     "timeago.js": "^4.0.2",
     "v-click-outside": "^3.1.2",
     "vue-fragment": "^1.5.2"
@@ -72,11 +73,12 @@
     "lodash.get": "^4.4.2",
     "lodash.set": "^4.3.2",
     "n8n-workflow": "~0.73.0",
-    "sass": "^1.26.5",
+    "monaco-editor-webpack-plugin": "^5.0.0",
     "normalize-wheel": "^1.0.1",
     "prismjs": "^1.17.1",
     "quill": "^2.0.0-dev.3",
     "quill-autoformat": "^0.1.1",
+    "sass": "^1.26.5",
     "sass-loader": "^8.0.2",
     "string-template-parser": "^1.2.6",
     "ts-jest": "^26.3.0",
diff --git a/packages/editor-ui/src/components/CodeEdit.vue b/packages/editor-ui/src/components/CodeEdit.vue
index fb1c02521d..85c7cc1c25 100644
--- a/packages/editor-ui/src/components/CodeEdit.vue
+++ b/packages/editor-ui/src/components/CodeEdit.vue
@@ -1,61 +1,107 @@
 <template>
-	<div v-if="dialogVisible">
-		<el-dialog :visible="dialogVisible" append-to-body :close-on-click-modal="false" width="80%" :title="`Edit ${parameter.displayName}`" :before-close="closeDialog">
-			<div class="text-editor-wrapper ignore-key-press">
-				<div class="editor-description">
-					{{parameter.displayName}}:
-				</div>
-				<div class="text-editor" @keydown.stop>
-					<prism-editor :lineNumbers="true" :code="value" :readonly="isReadOnly" @change="valueChanged" language="js"></prism-editor>
-				</div>
-			</div>
-		</el-dialog>
-	</div>
+	<el-dialog
+		visible
+		append-to-body
+		:close-on-click-modal="false"
+		width="80%"
+		:title="`Edit ${parameter.displayName}`"
+		:before-close="closeDialog"
+	>
+		<div class="text-editor-wrapper ignore-key-press">
+			<div ref="code" class="text-editor" @keydown.stop></div>
+		</div>
+	</el-dialog>
 </template>
 
 <script lang="ts">
 // @ts-ignore
-import PrismEditor from 'vue-prism-editor';
+// import PrismEditor from 'vue-prism-editor';
+import * as monaco from 'monaco-editor/esm/vs/editor/editor.api';
 
 import { genericHelpers } from '@/components/mixins/genericHelpers';
 
 import mixins from 'vue-typed-mixins';
+import { IExecutionResponse } from '@/Interface';
+import { INodeExecutionData } from 'n8n-workflow';
 
-export default mixins(
-	genericHelpers,
-)
-	.extend({
-		name: 'CodeEdit',
-		props: [
-			'dialogVisible',
-			'parameter',
-			'value',
-		],
-		components: {
-			PrismEditor,
+export default mixins(genericHelpers).extend({
+	name: 'CodeEdit',
+	props: ['dialogVisible', 'parameter', 'value'],
+	data() {
+		return {
+			monacoInstance: null as monaco.editor.IStandaloneCodeEditor | null,
+			monacoLibrary: null as monaco.IDisposable | null,
+		};
+	},
+	mounted() {
+		setTimeout(this.loadEditor);
+	},
+	destroyed() {
+		this.monacoLibrary!.dispose();
+	},
+	methods: {
+		closeDialog() {
+			// Handle the close externally as the visible parameter is an external prop
+			// and is so not allowed to be changed here.
+			this.$emit('closeDialog');
+			return false;
 		},
-		data () {
-			return {
-			};
-		},
-		methods: {
-			valueChanged (value: string) {
-				this.$emit('valueChanged', value);
-			},
 
-			closeDialog () {
-				// Handle the close externally as the visible parameter is an external prop
-				// and is so not allowed to be changed here.
-				this.$emit('closeDialog');
-				return false;
-			},
+		loadEditor() {
+			if (!this.$refs.code) return;
+
+			this.monacoInstance = monaco.editor.create(this.$refs.code as HTMLElement, {
+				value: this.value,
+				language: 'javascript',
+				tabSize: 2,
+			});
+
+			this.monacoInstance.onDidChangeModelContent((ev) => {
+				if (this.monacoInstance) {
+					const model = this.monacoInstance.getModel();
+					if (model) {
+						this.$emit('valueChanged', model.getValue());
+					}
+				}
+			});
+
+			this.loadAutocompleteData();
 		},
-	});
+
+		loadAutocompleteData(): void {
+			const executedWorkflow: IExecutionResponse | null = this.$store.getters.getWorkflowExecution;
+
+			let autocompleteData: INodeExecutionData[] = [{ json: { myNewField: 2 } }];
+
+			if (executedWorkflow) {
+				const lastNodeExecuted = executedWorkflow.data.resultData.lastNodeExecuted;
+
+				if (lastNodeExecuted) {
+					const data = executedWorkflow.data.resultData.runData[lastNodeExecuted];
+
+					// @ts-ignore
+					autocompleteData = data[0].data!.main[0];
+				}
+			}
+
+			this.monacoLibrary = monaco.languages.typescript.javascriptDefaults.addExtraLib(
+				[
+					`/**\n\`\`\`\nconst items = ${JSON.stringify(autocompleteData, null, 2)}\n\`\`\`\n*/`,
+					`const items = ${JSON.stringify(autocompleteData)}`,
+				].join('\n'),
+			);
+		},
+	},
+});
 </script>
 
 <style scoped>
 .editor-description {
 	font-weight: bold;
-	padding: 0 0 0.5em 0.2em;;
+	padding: 0 0 0.5em 0.2em;
+}
+
+.text-editor {
+	min-height: 30rem;
 }
 </style>
diff --git a/packages/editor-ui/src/components/ParameterInput.vue b/packages/editor-ui/src/components/ParameterInput.vue
index 5ea58f5f4c..30008448ad 100644
--- a/packages/editor-ui/src/components/ParameterInput.vue
+++ b/packages/editor-ui/src/components/ParameterInput.vue
@@ -13,7 +13,7 @@
 		/>
 
 		<div v-else-if="['json', 'string'].includes(parameter.type) || remoteParameterOptionsLoadingIssues !== null">
-			<code-edit :dialogVisible="codeEditDialogVisible" :value="value" :parameter="parameter" @closeDialog="closeCodeEditDialog" @valueChanged="expressionUpdated"></code-edit>
+			<code-edit v-if="codeEditDialogVisible" :value="value" :parameter="parameter" @closeDialog="closeCodeEditDialog" @valueChanged="expressionUpdated"></code-edit>
 			<text-edit :dialogVisible="textEditDialogVisible" :value="value" :parameter="parameter" @closeDialog="closeTextEditDialog" @valueChanged="expressionUpdated"></text-edit>
 
 			<div v-if="isEditor === true" class="clickable" @click="displayEditDialog()">
@@ -597,7 +597,7 @@ export default mixins(
 						parameter_field_type: this.parameter.type,
 						new_expression: !this.isValueExpression,
 						workflow_id: this.$store.getters.workflowId,
-					});	
+					});
 				}
 			},
 			closeTextEditDialog () {
diff --git a/packages/editor-ui/vue.config.js b/packages/editor-ui/vue.config.js
index d1233395fe..ef36eb00bc 100644
--- a/packages/editor-ui/vue.config.js
+++ b/packages/editor-ui/vue.config.js
@@ -1,3 +1,5 @@
+const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
+
 module.exports = {
 	chainWebpack: config => config.resolve.symlinks(false),
 	// transpileDependencies: [
@@ -13,6 +15,9 @@ module.exports = {
 		devServer: {
 			disableHostCheck: true,
 		},
+		plugins: [
+			new MonacoWebpackPlugin(),
+		],
 	},
 	css: {
 		loaderOptions: {