diff --git a/libs/extension/src/devtools/mock.ts b/libs/extension/src/devtools/mock.ts
new file mode 100644
index 00000000..0c40d06b
--- /dev/null
+++ b/libs/extension/src/devtools/mock.ts
@@ -0,0 +1,87 @@
+
+import { parseAttr } from '../parser/parseAttr';
+import parseTreeRoot from '../parser/parseVNode';
+import { VNode } from './../../../horizon/src/renderer/vnode/VNode';
+import { FunctionComponent, ClassComponent } from './../../../horizon/src/renderer/vnode/VNodeTags';
+
+const mockComponentNames = ['Apple', 'Pear', 'Banana', 'Orange', 'Jenny', 'Kiwi', 'Coconut'];
+
+function MockVNode(tag: string, props = {}, key = null, realNode = {}) {
+  const vNode = new VNode(tag, props, key, realNode);
+  const name = mockComponentNames.shift() || 'MockComponent';
+  vNode.type = {name};
+  return vNode;
+}
+
+interface IMockTree {
+  tag: string,
+  children?: IMockTree[],
+}
+
+const tree: IMockTree = {
+  tag: ClassComponent,
+  children: [
+    {tag: FunctionComponent},
+    {tag: ClassComponent},
+    {tag: FunctionComponent},
+    {
+      tag: FunctionComponent,
+      children: [
+        {tag: ClassComponent}
+      ]
+    }
+  ]
+}
+
+function addOneThousandNode(node: IMockTree) {
+  const nodes = [];
+  for(let i = 0; i < 1000; i++) {
+    nodes.push({tag: FunctionComponent});
+  }
+  node?.children.push({tag: ClassComponent,children: nodes});
+};
+
+addOneThousandNode(tree);
+
+function getMockVNodeTree(tree: IMockTree, vNode: VNode) {
+  const children = tree.children;
+  if (children && children.length !== 0) {
+    const childNode = children[0];
+    let childVNode = MockVNode(childNode.tag);
+    childVNode.key = '0';
+    getMockVNodeTree(childNode, childVNode);
+    vNode.child = childVNode;
+    childVNode.parent = vNode;
+    for(let i = 1; i < children.length; i++) {
+      const nextNode = children[i];
+      const nextVNode = MockVNode(nextNode.tag);
+      nextVNode.key = String(i);
+      nextVNode.parent = vNode;
+      getMockVNodeTree(nextNode, nextVNode);
+      childVNode.next = nextVNode;
+      childVNode = nextVNode;
+    }
+  }
+}
+const rootVNode = MockVNode(tree.tag);
+getMockVNodeTree(tree, rootVNode);
+
+export const mockParsedVNodeData = parseTreeRoot(rootVNode);
+
+
+const mockState = {
+  str: 'jenny',
+  num: 3,
+  boolean: true,
+  und: undefined,
+  fun: () => {},
+  symbol: Symbol('sym'),
+  map: new Map([['a', 'a']]),
+  set: new Set(['a', 1, 2, Symbol('bambi')]),
+  arr: [1,2,3,4],
+  obj: {
+    niko: {jenny: 'jenny'}
+  }
+};
+
+export const parsedMockState = parseAttr(mockState);
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