diff --git a/visualization_tool/src/types/resources.ts b/visualization_tool/src/types/resources.ts
new file mode 100644
index 00000000..3f6d19de
--- /dev/null
+++ b/visualization_tool/src/types/resources.ts
@@ -0,0 +1,64 @@
+type ResourceType = 'GCE' | 'GCS' | 'GKE' | 'App Engine';
+
+type Resource = {
+  id: string;
+  name: string;
+  type: ResourceType;
+  creationTimestamp: string;
+  status: 'RUNNING' | 'STOPPED' | 'DELETED';
+};
+
+type ComputeEngine = Resource & {
+  type: 'GCE';
+  zone: string;
+  machineType: string;
+  cpu: number;
+  memory: number;
+};
+
+type CloudStorage = Resource & {
+  type: 'GCS';
+  bucket: string;
+  location: string;
+  size: number;
+};
+
+type KubernetesEngine = Resource & {
+  type: 'GKE';
+  cluster: string;
+  location: string;
+  nodePools: string[];
+};
+
+type AppEngine = Resource & {
+  type: 'App Engine';
+  location: string;
+  services: string[];
+};
+
+type Project = {
+  project_info: {
+    projectNumber: string;
+    projectId: string;
+  };
+  compute_instances: ComputeEngine[];
+  compute_disks: CloudStorage[];
+  gke_clusters: KubernetesEngine[];
+  app_engine_services: AppEngine[];
+};
+
+type OutputFile = {
+  projects: {
+    [key: string]: Project;
+  };
+};
+
+export type {
+  Resource,
+  ComputeEngine,
+  CloudStorage,
+  KubernetesEngine,
+  AppEngine,
+  Project,
+  OutputFile,
+};