diff --git a/src/App.vue b/src/App.vue
index 64735e3..6b5a69d 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -13,6 +13,7 @@
 
     <HelpModal :is-open="isHelpModalOpen" @close="closeHelpModal" />
     <FeedbackModal :is-open="isFeedbackModalOpen" @close="closeFeedbackModal" />
+    <ToastContainer />
 
     <!-- One-time feedback popup -->
     <div v-if="showFeedbackPopup" class="fixed bottom-6 right-6 z-50 flex items-center justify-center">
@@ -43,6 +44,7 @@
   import HelpModal from './components/HelpModal.vue';
   import FeedbackModal from './components/FeedbackModal.vue';
   import Breadcrumbs from './components/Breadcrumbs.vue';
+  import ToastContainer from './components/utilities/ToastContainer.vue';
 
   const isHelpModalOpen = ref(false);
   const isFeedbackModalOpen = ref(false);
diff --git a/src/components/layout/Navbar.vue b/src/components/layout/Navbar.vue
index 0c962e4..2928bbe 100644
--- a/src/components/layout/Navbar.vue
+++ b/src/components/layout/Navbar.vue
@@ -16,7 +16,7 @@
         <div class="hidden md:flex items-center gap-5">
           <!-- Auth & Projects -->
           <template v-if="authStore.user">
-            <NavbarProjectActions @save-project="handleQuickSave" @open-save-modal="openSaveModal" @open-new-project-modal="isNewProjectModalOpen = true" @open-project-list="isProjectListOpen = true" />
+            <NavbarProjectActions :is-saving="isSaving" @save-project="handleQuickSave" @open-save-modal="openSaveModal" @open-new-project-modal="isNewProjectModalOpen = true" @open-project-list="isProjectListOpen = true" />
 
             <div class="h-4 w-px bg-gray-200 dark:bg-gray-700"></div>
 
@@ -46,6 +46,7 @@
     <!-- Mobile Menu -->
     <NavbarMobileMenu
       :is-open="isMobileMenuOpen"
+      :is-saving="isSaving"
       @close="isMobileMenuOpen = false"
       @open-help="$emit('open-help')"
       @save-project="handleQuickSave"
@@ -71,6 +72,7 @@
   import NewProjectModal from '@/components/project/NewProjectModal.vue';
   import { useProjectStore, type Project } from '@/stores/useProjectStore';
   import { useProjectManager } from '@/composables/useProjectManager';
+  import { useToast } from '@/composables/useToast';
 
   // Sub-components
   import NavbarLogo from './navbar/NavbarLogo.vue';
@@ -88,10 +90,12 @@
   const isSaveProjectModalOpen = ref(false);
   const isNewProjectModalOpen = ref(false);
   const saveMode = ref<'save' | 'save-as'>('save');
+  const isSaving = ref(false);
 
   const authStore = useAuthStore();
   const projectStore = useProjectStore();
   const { createProject, openProject, saveProject, saveAsProject } = useProjectManager();
+  const { addToast } = useToast();
 
   const handleOpenProject = async (project: Project) => {
     await openProject(project);
@@ -111,21 +115,38 @@
 
   const handleQuickSave = async () => {
     if (projectStore.currentProject?.name) {
-      await saveProject(projectStore.currentProject.name);
+      isSaving.value = true;
+      try {
+        await saveProject(projectStore.currentProject.name);
+        addToast('Project saved successfully', 'success');
+      } catch (error) {
+        addToast('Failed to save project', 'error');
+        console.error(error);
+      } finally {
+        isSaving.value = false;
+      }
     } else {
       openSaveModal('save');
     }
   };
 
   const handleSaveProject = async (name: string) => {
+    isSaving.value = true;
     try {
       if (saveMode.value === 'save-as') {
         await saveAsProject(name);
+        addToast('Project saved as new copy', 'success');
       } else {
         await saveProject(name);
+        addToast('Project saved successfully', 'success');
       }
-    } catch {
-      // Error handled in composable
+      isSaveProjectModalOpen.value = false;
+    } catch (error) {
+      addToast('Failed to save project', 'error');
+      console.error(error);
+      // Error handled in composable but kept here for toast
+    } finally {
+      isSaving.value = false;
     }
   };
 
diff --git a/src/components/layout/navbar/NavbarMobileMenu.vue b/src/components/layout/navbar/NavbarMobileMenu.vue
index 8c5f492..ab4165e 100644
--- a/src/components/layout/navbar/NavbarMobileMenu.vue
+++ b/src/components/layout/navbar/NavbarMobileMenu.vue
@@ -58,8 +58,14 @@
               $emit('close');
             "
             class="w-full text-left flex items-center gap-3 px-3 py-2 rounded-md text-base font-medium text-gray-700 dark:text-gray-200 hover:bg-gray-50 dark:hover:bg-gray-800 hover:text-indigo-600 dark:hover:text-indigo-400 transition-colors"
+            :disabled="isSaving"
           >
-            <i class="fas fa-save w-5"></i> Save project
+            <svg v-if="isSaving" class="animate-spin w-5 h-5 text-indigo-600 dark:text-indigo-400" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
+              <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+              <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+            </svg>
+            <i v-else class="fas fa-save w-5"></i>
+            {{ isSaving ? 'Saving...' : 'Save project' }}
           </button>
 
           <button
@@ -125,6 +131,7 @@
 
   defineProps<{
     isOpen: boolean;
+    isSaving?: boolean;
   }>();
 
   defineEmits(['close', 'open-help', 'save-project', 'open-save-modal', 'open-new-project-modal', 'open-project-list', 'open-auth-modal']);
diff --git a/src/components/layout/navbar/NavbarProjectActions.vue b/src/components/layout/navbar/NavbarProjectActions.vue
index a1c78d6..975c7b7 100644
--- a/src/components/layout/navbar/NavbarProjectActions.vue
+++ b/src/components/layout/navbar/NavbarProjectActions.vue
@@ -19,9 +19,13 @@
     <div v-if="isEditorActive" class="h-8 w-px bg-gray-200 dark:bg-gray-700 mx-1"></div>
 
     <div class="flex items-center gap-1">
-      <Tooltip v-if="isEditorActive" text="Save project">
-        <button @click="$emit('save-project')" class="w-8 h-8 rounded-lg flex items-center justify-center text-gray-500 hover:text-indigo-600 hover:bg-indigo-50 dark:hover:bg-indigo-900/30 transition-all">
-          <i class="fas fa-save"></i>
+      <Tooltip v-if="isEditorActive" :text="isSaving ? 'Saving...' : 'Save project'">
+        <button @click="$emit('save-project')" class="w-8 h-8 rounded-lg flex items-center justify-center text-gray-500 hover:text-indigo-600 hover:bg-indigo-50 dark:hover:bg-indigo-900/30 transition-all" :disabled="isSaving">
+          <svg v-if="isSaving" class="animate-spin h-4 w-4 text-indigo-600 dark:text-indigo-400" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
+            <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+            <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+          </svg>
+          <i v-else class="fas fa-save"></i>
         </button>
       </Tooltip>
 
@@ -57,5 +61,9 @@
   const route = useRoute();
   const projectStore = useProjectStore();
 
+  defineProps<{
+    isSaving?: boolean;
+  }>();
+
   const isEditorActive = computed(() => route.name === 'editor');
 </script>
diff --git a/src/components/utilities/ToastContainer.vue b/src/components/utilities/ToastContainer.vue
new file mode 100644
index 0000000..62d1747
--- /dev/null
+++ b/src/components/utilities/ToastContainer.vue
@@ -0,0 +1,21 @@
+<template>
+  <div class="fixed bottom-5 right-5 z-[100] flex flex-col items-end space-y-2 pointer-events-none">
+    <TransitionGroup
+      enter-active-class="transform ease-out duration-300 transition"
+      enter-from-class="translate-y-2 opacity-0 sm:translate-y-0 sm:translate-x-2"
+      enter-to-class="translate-y-0 opacity-100 sm:translate-x-0"
+      leave-active-class="transition ease-in duration-100"
+      leave-from-class="opacity-100"
+      leave-to-class="opacity-0"
+    >
+      <ToastItem v-for="toast in toasts" :key="toast.id" :toast="toast" />
+    </TransitionGroup>
+  </div>
+</template>
+
+<script setup lang="ts">
+  import { useToast } from '@/composables/useToast';
+  import ToastItem from './ToastItem.vue';
+
+  const { toasts } = useToast();
+</script>
diff --git a/src/components/utilities/ToastItem.vue b/src/components/utilities/ToastItem.vue
new file mode 100644
index 0000000..3cbe5ad
--- /dev/null
+++ b/src/components/utilities/ToastItem.vue
@@ -0,0 +1,128 @@
+<template>
+  <div
+    class="flex items-center w-full max-w-sm p-4 mb-4 text-gray-500 bg-white dark:bg-gray-800 rounded-lg shadow-lg dark:text-gray-400 border-l-4 pointer-events-auto transform transition-all duration-300 ease-in-out"
+    :class="[typeClasses[props.toast.type], isLeaving ? 'opacity-0 translate-x-full' : 'opacity-100 translate-x-0']"
+    role="alert"
+  >
+    <div class="inline-flex items-center justify-center flex-shrink-0 w-8 h-8 rounded-lg" :class="iconBgClasses[props.toast.type]">
+      <component :is="icons[props.toast.type]" class="w-5 h-5" :class="iconColorClasses[props.toast.type]" />
+    </div>
+    <div class="ml-3 text-sm font-medium pr-4">{{ props.toast.message }}</div>
+    <button
+      type="button"
+      class="ml-auto -mx-1.5 -my-1.5 bg-white text-gray-400 hover:text-gray-900 rounded-lg focus:ring-2 focus:ring-gray-300 p-1.5 hover:bg-gray-100 inline-flex h-8 w-8 dark:text-gray-500 dark:hover:text-white dark:bg-gray-800 dark:hover:bg-gray-700"
+      @click="dismiss"
+      aria-label="Close"
+    >
+      <span class="sr-only">Close</span>
+      <svg class="w-3 h-3" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 14 14">
+        <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m1 1 6 6m0 0 6 6M7 7l6-6M7 7l-6 6" />
+      </svg>
+    </button>
+  </div>
+</template>
+
+<script setup lang="ts">
+  import { ref, h } from 'vue';
+  import type { Toast } from '@/composables/useToast';
+  import { useToast } from '@/composables/useToast';
+
+  // Simple functional components for icons using h (avoid runtime compiler)
+  const SuccessIcon = {
+    render: () =>
+      h(
+        'svg',
+        {
+          'aria-hidden': 'true',
+          xmlns: 'http://www.w3.org/2000/svg',
+          fill: 'currentColor',
+          viewBox: '0 0 20 20',
+        },
+        [h('path', { d: 'M10 .5a9.5 9.5 0 1 0 9.5 9.5A9.51 9.51 0 0 0 10 .5Zm3.707 8.207-4 4a1 1 0 0 1-1.414 0l-2-2a1 1 0 0 1 1.414-1.414L9 10.586l3.293-3.293a1 1 0 0 1 1.414 1.414Z' })]
+      ),
+  };
+
+  const ErrorIcon = {
+    render: () =>
+      h(
+        'svg',
+        {
+          'aria-hidden': 'true',
+          xmlns: 'http://www.w3.org/2000/svg',
+          fill: 'currentColor',
+          viewBox: '0 0 20 20',
+        },
+        [h('path', { d: 'M10 .5a9.5 9.5 0 1 0 9.5 9.5A9.51 9.51 0 0 0 10 .5Zm3.707 11.793a1 1 0 1 1-1.414 1.414L10 11.414l-2.293 2.293a1 1 0 0 1-1.414-1.414L8.586 10 6.293 7.707a1 1 0 0 1 1.414-1.414L10 8.586l2.293-2.293a1 1 0 0 1 1.414 1.414L11.414 10l2.293 2.293Z' })]
+      ),
+  };
+
+  const InfoIcon = {
+    render: () =>
+      h(
+        'svg',
+        {
+          'aria-hidden': 'true',
+          xmlns: 'http://www.w3.org/2000/svg',
+          fill: 'currentColor',
+          viewBox: '0 0 20 20',
+        },
+        [h('path', { d: 'M10 .5a9.5 9.5 0 1 0 9.5 9.5A9.51 9.51 0 0 0 10 .5ZM9.5 4a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3ZM12 15H8a1 1 0 0 1 0-2h1v-3H8a1 1 0 0 1 0-2h2a1 1 0 0 1 1 1v4h1a1 1 0 0 1 0 2Z' })]
+      ),
+  };
+
+  const WarningIcon = {
+    render: () =>
+      h(
+        'svg',
+        {
+          'aria-hidden': 'true',
+          xmlns: 'http://www.w3.org/2000/svg',
+          fill: 'currentColor',
+          viewBox: '0 0 20 20',
+        },
+        [h('path', { d: 'M10 .5a9.5 9.5 0 1 0 9.5 9.5A9.51 9.51 0 0 0 10 .5ZM10 15a1 1 0 1 1 0-2 1 1 0 0 1 0 2Zm1-4a1 1 0 0 1-2 0V6a1 1 0 0 1 2 0v5Z' })]
+      ),
+  };
+
+  const props = defineProps<{
+    toast: Toast;
+  }>();
+
+  const { removeToast } = useToast();
+  const isLeaving = ref(false);
+
+  const dismiss = () => {
+    isLeaving.value = true;
+    setTimeout(() => {
+      removeToast(props.toast.id);
+    }, 300); // Match transition duration
+  };
+
+  const icons = {
+    success: SuccessIcon,
+    error: ErrorIcon,
+    info: InfoIcon,
+    warning: WarningIcon,
+  };
+
+  const typeClasses = {
+    success: 'border-green-500 bg-white dark:bg-gray-800',
+    error: 'border-red-500 bg-white dark:bg-gray-800',
+    info: 'border-blue-500 bg-white dark:bg-gray-800',
+    warning: 'border-orange-500 bg-white dark:bg-gray-800',
+  };
+
+  const iconBgClasses = {
+    success: 'bg-green-100 dark:bg-green-800',
+    error: 'bg-red-100 dark:bg-red-800',
+    info: 'bg-blue-100 dark:bg-blue-800',
+    warning: 'bg-orange-100 dark:bg-orange-800',
+  };
+
+  const iconColorClasses = {
+    success: 'text-green-500 dark:text-green-200',
+    error: 'text-red-500 dark:text-red-200',
+    info: 'text-blue-500 dark:text-blue-200',
+    warning: 'text-orange-500 dark:text-orange-200',
+  };
+</script>
diff --git a/src/composables/useToast.ts b/src/composables/useToast.ts
new file mode 100644
index 0000000..e3e13c2
--- /dev/null
+++ b/src/composables/useToast.ts
@@ -0,0 +1,39 @@
+import { ref } from 'vue';
+
+export type ToastType = 'success' | 'error' | 'info' | 'warning';
+
+export interface Toast {
+  id: string;
+  message: string;
+  type: ToastType;
+  duration?: number;
+}
+
+const toasts = ref<Toast[]>([]);
+
+export function useToast() {
+  const addToast = (message: string, type: ToastType = 'info', duration: number = 3000) => {
+    const id = Date.now().toString(36) + Math.random().toString(36).substr(2);
+    const toast: Toast = { id, message, type, duration };
+    toasts.value.push(toast);
+
+    if (duration > 0) {
+      setTimeout(() => {
+        removeToast(id);
+      }, duration);
+    }
+  };
+
+  const removeToast = (id: string) => {
+    const index = toasts.value.findIndex(t => t.id === id);
+    if (index !== -1) {
+      toasts.value.splice(index, 1);
+    }
+  };
+
+  return {
+    toasts,
+    addToast,
+    removeToast,
+  };
+}