diff --git a/src/App.svelte b/src/App.svelte
index b394917..94cecd9 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -1,6 +1,9 @@
 <script lang="ts">
   import { onMount, onDestroy } from "svelte";
-  import TopBar from "./lib/components/ui/TopBar.svelte";
+  import MenuBar from "./lib/components/ui/MenuBar.svelte";
+  import MenuItem from "./lib/components/ui/MenuItem.svelte";
+  import MenuAction from "./lib/components/ui/MenuAction.svelte";
+  import AboutDialog from "./lib/components/ui/AboutDialog.svelte";
   import EditorWithLogs from "./lib/components/editor/EditorWithLogs.svelte";
   import EditorSettings from "./lib/components/editor/EditorSettings.svelte";
   import FileBrowser from "./lib/components/ui/FileBrowser.svelte";
@@ -261,93 +264,76 @@
 {/snippet}
 
 <div class="app-container">
-  <TopBar title="OldBoy">
-    {#snippet leftActions()}
-      <button
-        onclick={handleStop}
-        class="icon-button stop-button"
-        disabled={!$running}
-        title="Stop audio (Ctrl+.)"
-      >
-        <CircleStop size={18} />
-      </button>
-      <button
-        class="icon-button"
+  <MenuBar onLogoClick={() => uiState.showAboutDialog()}>
+    <MenuItem label="File">
+      <MenuAction
+        label="New File"
+        icon={FileStack}
         onclick={handleNewFile}
-        title="New file"
-      >
-        <FileStack size={18} />
-      </button>
-      <button
-        class="icon-button"
-        onclick={handleSave}
+      />
+      <MenuAction
+        label="Save"
+        icon={Save}
+        shortcut={navigator.platform.includes("Mac") ? "Cmd+S" : "Ctrl+S"}
         disabled={!editorState.hasUnsavedChanges}
-        title="Save (Ctrl+S){editorState.hasUnsavedChanges
-          ? ' - unsaved changes'
-          : ''}"
-        class:has-changes={editorState.hasUnsavedChanges}
-      >
-        <Save size={18} />
-      </button>
-      <button
-        onclick={handleShare}
-        class="icon-button"
+        onclick={handleSave}
+      />
+      <MenuAction
+        label="Share..."
+        icon={Share2}
         disabled={!editorState.currentFileId}
-        title="Share current file"
-      >
-        <Share2 size={18} />
-      </button>
-    {/snippet}
-    <button
-      onclick={handleExecuteFile}
-      class="icon-button evaluate-button"
-      disabled={!$initialized}
-      class:is-running={$running}
-      title="Run File (Cmd-R)"
-    >
-      <Play size={18} />
-    </button>
-    <button
-      onclick={() => uiState.toggleScope()}
-      class="icon-button"
-      title="Toggle audio scope"
-    >
-      <Activity size={18} />
-    </button>
-    <button
-      onclick={() => uiState.toggleSpectrogram()}
-      class="icon-button"
-      title="Toggle spectrogram"
-    >
-      <svg
-        width="18"
-        height="18"
-        viewBox="0 0 24 24"
-        fill="none"
-        stroke="currentColor"
-        stroke-width="2"
-      >
-        <rect x="3" y="3" width="18" height="18" rx="2" />
-        <path d="M3 9h18" />
-        <path d="M3 15h18" />
-        <path d="M9 3v18" />
-        <path d="M15 3v18" />
-      </svg>
-    </button>
-    {#if !uiState.sidePanelVisible}
-      <button
-        class="icon-button"
+        onclick={handleShare}
+      />
+    </MenuItem>
+
+    <MenuItem label="Audio">
+      <MenuAction
+        label="Run File"
+        icon={Play}
+        shortcut={navigator.platform.includes("Mac") ? "Cmd+R" : "Ctrl+R"}
+        disabled={!$initialized}
+        onclick={handleExecuteFile}
+      />
+      <MenuAction
+        label="Stop"
+        icon={CircleStop}
+        shortcut={navigator.platform.includes("Mac") ? "Cmd+." : "Ctrl+."}
+        disabled={!$running}
+        onclick={handleStop}
+      />
+    </MenuItem>
+
+    <MenuItem label="Visuals">
+      <MenuAction
+        label="Toggle Side Panel"
+        icon={uiState.sidePanelPosition === "left" ? PanelLeftOpen : PanelRightOpen}
         onclick={() => uiState.toggleSidePanel()}
-        title="Open side panel"
-      >
-        {#if uiState.sidePanelPosition === "left"}
-          <PanelLeftOpen size={18} />
-        {:else}
-          <PanelRightOpen size={18} />
-        {/if}
-      </button>
-    {/if}
-  </TopBar>
+      />
+      <MenuAction
+        label="Audio Scope"
+        icon={Activity}
+        onclick={() => uiState.toggleScope()}
+      />
+      <MenuAction
+        label="Spectrogram"
+        onclick={() => uiState.toggleSpectrogram()}
+      />
+    </MenuItem>
+
+    <MenuItem label="Options">
+      <MenuAction
+        label="Editor Settings"
+        onclick={() => {}}
+      />
+    </MenuItem>
+
+    <MenuItem label="About">
+      <MenuAction
+        label="About OldBoy..."
+        onclick={() => uiState.showAboutDialog()}
+      />
+    </MenuItem>
+  </MenuBar>
 
   <div class="main-content">
     {#if uiState.sidePanelPosition === "left"}
@@ -473,6 +459,11 @@
     {/snippet}
   </ResizablePopup>
 
+  <AboutDialog
+    isOpen={uiState.aboutDialogVisible}
+    onClose={() => uiState.hideAboutDialog()}
+  />
+
 </div>
 
 <style>
@@ -495,49 +486,6 @@
     overflow: hidden;
   }
 
-  .icon-button {
-    padding: var(--space-sm);
-    background-color: var(--border-color);
-    color: var(--text-color);
-    border: 1px solid var(--border-color);
-    cursor: pointer;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    transition: background-color var(--transition-base);
-  }
-
-  .icon-button:hover:not(:disabled) {
-    background-color: var(--button-hover);
-    border-color: var(--accent-color);
-  }
-
-  .icon-button:disabled {
-    opacity: 0.3;
-    cursor: not-allowed;
-  }
-
-  .icon-button.has-changes {
-    color: var(--accent-color);
-  }
-
-  .icon-button.stop-button:not(:disabled) {
-    color: var(--danger-color);
-  }
-
-  .icon-button.stop-button:hover:not(:disabled) {
-    color: var(--danger-hover);
-    border-color: var(--danger-hover);
-  }
-
-  .icon-button.evaluate-button.is-running {
-    color: var(--accent-color);
-  }
-
-  .icon-button.evaluate-button.is-running:hover:not(:disabled) {
-    border-color: var(--accent-color);
-  }
-
   h3 {
     margin-top: 0;
     color: var(--text-color);
diff --git a/src/lib/components/ui/AboutDialog.svelte b/src/lib/components/ui/AboutDialog.svelte
new file mode 100644
index 0000000..e4776d4
--- /dev/null
+++ b/src/lib/components/ui/AboutDialog.svelte
@@ -0,0 +1,165 @@
+<script lang="ts">
+	import ResizablePopup from './ResizablePopup.svelte';
+	import { Code2 } from 'lucide-svelte';
+
+	interface Props {
+		isOpen: boolean;
+		onClose: () => void;
+	}
+
+	let { isOpen, onClose }: Props = $props();
+
+	const version = '0.0.0';
+	const author = 'Raphaël Maurice Forment';
+	const license = 'MIT License';
+	const website = 'https://raphaelforment.fr';
+	const livecoding = 'https://livecoding.fr';
+</script>
+
+{#if isOpen}
+	<ResizablePopup
+		bind:visible={isOpen}
+		title="About OldBoy"
+		x={typeof window !== 'undefined' ? window.innerWidth / 2 - 250 : 250}
+		y={typeof window !== 'undefined' ? window.innerHeight / 2 - 250 : 250}
+		width={500}
+		height={500}
+		minWidth={500}
+		minHeight={500}
+		closable={true}
+		onClose={onClose}
+	>
+		{#snippet children()}
+			<div class="about-content">
+				<div class="about-logo">
+					<Code2 size={64} strokeWidth={1.5} />
+				</div>
+
+				<div class="about-info">
+					<h1 class="app-name">OldBoy</h1>
+
+					<div class="description">
+						<p>
+							A modern web-based Csound editor and development environment. Write,
+							execute, and experiment with Csound code directly in your browser.
+						</p>
+					</div>
+
+					<div class="author-section">
+						<div class="links">
+							<a href={website} target="_blank" rel="noopener noreferrer">
+								raphaelforment.fr
+							</a>
+							<a href={livecoding} target="_blank" rel="noopener noreferrer">
+								livecoding.fr
+							</a>
+						</div>
+					</div>
+
+					<div class="footer">
+						<p>&copy; 2025 {author} · {license}</p>
+					</div>
+				</div>
+			</div>
+		{/snippet}
+	</ResizablePopup>
+{/if}
+
+<style>
+	.about-content {
+		padding: 32px;
+		overflow-y: auto;
+		height: 100%;
+	}
+
+	.about-logo {
+		display: flex;
+		justify-content: center;
+		margin-bottom: 24px;
+		color: var(--accent-color);
+	}
+
+	.about-info {
+		text-align: center;
+	}
+
+	.app-name {
+		font-size: 28px;
+		margin: 0 0 8px 0;
+		color: var(--text-color);
+		font-weight: 600;
+	}
+
+	.version {
+		font-size: var(--font-sm);
+		color: var(--text-secondary);
+		margin: 0 0 24px 0;
+	}
+
+	.description {
+		margin-bottom: 32px;
+		text-align: center;
+		padding: 0 16px;
+	}
+
+	.description p {
+		color: var(--text-color);
+		line-height: 1.6;
+		margin: 0;
+	}
+
+	.author-section {
+		margin-bottom: 32px;
+		text-align: center;
+	}
+
+	.author-section h3 {
+		font-size: var(--font-base);
+		color: var(--text-color);
+		margin: 0 0 12px 0;
+		font-weight: 600;
+	}
+
+	.author-name {
+		color: var(--text-color);
+		font-size: var(--font-base);
+		margin: 0 0 12px 0;
+	}
+
+	.links {
+		display: grid;
+		grid-template-columns: 1fr 1fr;
+		gap: 16px;
+		max-width: 400px;
+		margin: 0 auto;
+	}
+
+	.links a {
+		color: var(--accent-color);
+		text-decoration: none;
+		font-size: var(--font-sm);
+		transition: opacity var(--transition-fast);
+		text-align: center;
+		padding: 8px 16px;
+		border: 1px solid var(--border-color);
+		background-color: var(--surface-color);
+	}
+
+	.links a:hover {
+		opacity: 0.8;
+		border-color: var(--accent-color);
+	}
+
+	.footer {
+		margin-top: 32px;
+		padding-top: 16px;
+		border-top: 1px solid var(--border-color);
+		text-align: center;
+	}
+
+	.footer p {
+		font-size: var(--font-xs);
+		color: var(--text-secondary);
+		margin: 0;
+	}
+</style>
diff --git a/src/lib/components/ui/MenuAction.svelte b/src/lib/components/ui/MenuAction.svelte
new file mode 100644
index 0000000..ed40280
--- /dev/null
+++ b/src/lib/components/ui/MenuAction.svelte
@@ -0,0 +1,82 @@
+<script lang="ts">
+	import type { ComponentType } from 'svelte';
+
+	interface Props {
+		label: string;
+		icon?: ComponentType;
+		shortcut?: string;
+		disabled?: boolean;
+		onclick?: () => void;
+	}
+
+	let { label, icon, shortcut, disabled = false, onclick }: Props = $props();
+</script>
+
+<button
+	class="menu-action"
+	class:disabled
+	{disabled}
+	onclick={() => !disabled && onclick?.()}
+	type="button"
+>
+	<span class="menu-action-content">
+		{#if icon}
+			{@const Icon = icon}
+			<Icon size={16} />
+		{/if}
+		<span class="menu-action-label">{label}</span>
+	</span>
+	{#if shortcut}
+		<span class="menu-action-shortcut">{shortcut}</span>
+	{/if}
+</button>
+
+<style>
+	.menu-action {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		width: 100%;
+		padding: 6px 12px;
+		background: transparent;
+		border: none;
+		color: var(--text-color);
+		font-size: var(--font-sm);
+		cursor: pointer;
+		transition: background-color var(--transition-fast);
+		text-align: left;
+		gap: 24px;
+	}
+
+	.menu-action:hover:not(.disabled) {
+		background-color: var(--accent-color);
+		color: var(--accent-text);
+	}
+
+	.menu-action.disabled {
+		opacity: 0.5;
+		cursor: not-allowed;
+	}
+
+	.menu-action-content {
+		display: flex;
+		align-items: center;
+		gap: 8px;
+	}
+
+	.menu-action-label {
+		white-space: nowrap;
+	}
+
+	.menu-action-shortcut {
+		font-size: var(--font-xs);
+		color: var(--text-secondary);
+		opacity: 0.7;
+		white-space: nowrap;
+	}
+
+	.menu-action:hover:not(.disabled) .menu-action-shortcut {
+		color: var(--accent-text);
+		opacity: 0.9;
+	}
+</style>
diff --git a/src/lib/components/ui/MenuBar.svelte b/src/lib/components/ui/MenuBar.svelte
new file mode 100644
index 0000000..ffeb149
--- /dev/null
+++ b/src/lib/components/ui/MenuBar.svelte
@@ -0,0 +1,65 @@
+<script lang="ts">
+	import type { Snippet } from 'svelte';
+	import { Code2 } from 'lucide-svelte';
+
+	interface Props {
+		children: Snippet;
+		onLogoClick?: () => void;
+	}
+
+	let { children, onLogoClick }: Props = $props();
+</script>
+
+<div class="menu-bar">
+	<div class="menu-bar-left">
+		<button class="logo-button" onclick={onLogoClick} type="button">
+			<Code2 size={20} />
+			<span class="logo-text">OldBoy</span>
+		</button>
+		{@render children()}
+	</div>
+</div>
+
+<style>
+	.menu-bar {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		height: 48px;
+		background-color: var(--bg-color);
+		border-bottom: 1px solid var(--border-color);
+		padding: 0;
+		flex-shrink: 0;
+	}
+
+	.menu-bar-left {
+		display: flex;
+		align-items: center;
+		height: 100%;
+	}
+
+	.logo-button {
+		display: flex;
+		align-items: center;
+		gap: 8px;
+		padding: 12px 16px;
+		background: transparent;
+		border: none;
+		color: var(--text-color);
+		font-size: var(--font-base);
+		font-weight: 600;
+		cursor: pointer;
+		transition: background-color var(--transition-fast);
+		height: 100%;
+		border-right: 1px solid var(--border-color);
+	}
+
+	.logo-button:hover {
+		background-color: var(--surface-color);
+		color: var(--accent-color);
+	}
+
+	.logo-text {
+		user-select: none;
+	}
+</style>
diff --git a/src/lib/components/ui/MenuDropdown.svelte b/src/lib/components/ui/MenuDropdown.svelte
new file mode 100644
index 0000000..43f69e2
--- /dev/null
+++ b/src/lib/components/ui/MenuDropdown.svelte
@@ -0,0 +1,79 @@
+<script lang="ts">
+	import { onMount } from 'svelte';
+	import type { Snippet } from 'svelte';
+
+	interface Props {
+		isOpen: boolean;
+		onClose: () => void;
+		children: Snippet;
+		anchorElement?: HTMLElement;
+	}
+
+	let { isOpen = $bindable(), onClose, children, anchorElement }: Props = $props();
+	let dropdownElement: HTMLDivElement;
+
+	function handleClickOutside(event: MouseEvent) {
+		if (
+			isOpen &&
+			dropdownElement &&
+			!dropdownElement.contains(event.target as Node) &&
+			anchorElement &&
+			!anchorElement.contains(event.target as Node)
+		) {
+			onClose();
+		}
+	}
+
+	function handleEscapeKey(event: KeyboardEvent) {
+		if (isOpen && event.key === 'Escape') {
+			onClose();
+		}
+	}
+
+	$effect(() => {
+		if (isOpen) {
+			document.addEventListener('click', handleClickOutside, true);
+			document.addEventListener('keydown', handleEscapeKey);
+
+			return () => {
+				document.removeEventListener('click', handleClickOutside, true);
+				document.removeEventListener('keydown', handleEscapeKey);
+			};
+		}
+	});
+
+	function positionDropdown() {
+		if (!dropdownElement || !anchorElement) return;
+
+		const anchorRect = anchorElement.getBoundingClientRect();
+		dropdownElement.style.top = `${anchorRect.bottom}px`;
+		dropdownElement.style.left = `${anchorRect.left}px`;
+	}
+
+	$effect(() => {
+		if (isOpen && anchorElement) {
+			positionDropdown();
+		}
+	});
+</script>
+
+{#if isOpen}
+	<div class="menu-dropdown" bind:this={dropdownElement}>
+		{@render children()}
+	</div>
+{/if}
+
+<style>
+	.menu-dropdown {
+		position: fixed;
+		z-index: 1000;
+		background-color: var(--surface-color);
+		border: 1px solid var(--border-color);
+		box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+		min-width: 200px;
+		max-width: 300px;
+		padding: 4px 0;
+		display: flex;
+		flex-direction: column;
+	}
+</style>
diff --git a/src/lib/components/ui/MenuItem.svelte b/src/lib/components/ui/MenuItem.svelte
new file mode 100644
index 0000000..88c5db7
--- /dev/null
+++ b/src/lib/components/ui/MenuItem.svelte
@@ -0,0 +1,67 @@
+<script lang="ts">
+	import type { Snippet } from 'svelte';
+	import MenuDropdown from './MenuDropdown.svelte';
+
+	interface Props {
+		label: string;
+		children: Snippet;
+	}
+
+	let { label, children }: Props = $props();
+	let isOpen = $state(false);
+	let buttonElement: HTMLButtonElement;
+
+	function toggleMenu() {
+		isOpen = !isOpen;
+	}
+
+	function closeMenu() {
+		isOpen = false;
+	}
+</script>
+
+<div class="menu-item">
+	<button
+		bind:this={buttonElement}
+		class="menu-item-trigger"
+		class:active={isOpen}
+		onclick={toggleMenu}
+		type="button"
+	>
+		{label}
+	</button>
+
+	<MenuDropdown {isOpen} onClose={closeMenu} anchorElement={buttonElement}>
+		<div onclick={closeMenu}>
+			{@render children()}
+		</div>
+	</MenuDropdown>
+</div>
+
+<style>
+	.menu-item {
+		position: relative;
+	}
+
+	.menu-item-trigger {
+		background: transparent;
+		border: none;
+		color: var(--text-color);
+		font-size: var(--font-sm);
+		padding: 12px 16px;
+		cursor: pointer;
+		transition: background-color var(--transition-fast);
+		height: 100%;
+		display: flex;
+		align-items: center;
+	}
+
+	.menu-item-trigger:hover,
+	.menu-item-trigger.active {
+		background-color: var(--surface-color);
+	}
+
+	.menu-item-trigger.active {
+		color: var(--accent-color);
+	}
+</style>
diff --git a/src/lib/components/ui/ResizablePopup.svelte b/src/lib/components/ui/ResizablePopup.svelte
index 148890a..e8134db 100644
--- a/src/lib/components/ui/ResizablePopup.svelte
+++ b/src/lib/components/ui/ResizablePopup.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
   import { onMount } from 'svelte';
+  import { X } from 'lucide-svelte';
 
   interface Props {
     title?: string;
@@ -126,7 +127,9 @@
     <div class="popup-header" onmousedown={handleDragStart}>
       <span class="popup-title">{title}</span>
       {#if closable}
-        <button class="close-button" onclick={handleClose}>×</button>
+        <button class="close-button" onclick={handleClose}>
+          <X size={16} />
+        </button>
       {/if}
     </div>
     <div class="popup-content" class:no-padding={noPadding}>
@@ -159,11 +162,12 @@
     display: flex;
     justify-content: space-between;
     align-items: center;
-    padding: var(--space-md) var(--space-lg);
+    padding: 8px 16px;
     background-color: var(--surface-color);
     border-bottom: 1px solid var(--border-color);
     cursor: move;
     user-select: none;
+    min-height: 36px;
   }
 
   .popup-title {
@@ -173,23 +177,22 @@
   }
 
   .close-button {
-    background: none;
+    background: transparent;
     border: none;
-    color: var(--text-secondary);
-    font-size: 1.5rem;
-    line-height: 1;
-    padding: 0;
+    padding: 4px;
     cursor: pointer;
     width: 24px;
     height: 24px;
     display: flex;
     align-items: center;
     justify-content: center;
-    transition: color var(--transition-base);
+    transition: all var(--transition-fast);
+    color: var(--text-secondary);
   }
 
   .close-button:hover {
-    color: var(--text-color);
+    background-color: var(--accent-color);
+    color: var(--accent-text);
   }
 
   .popup-content {
diff --git a/src/lib/stores/uiState.svelte.ts b/src/lib/stores/uiState.svelte.ts
index 1b0398f..7236486 100644
--- a/src/lib/stores/uiState.svelte.ts
+++ b/src/lib/stores/uiState.svelte.ts
@@ -9,6 +9,7 @@ export class UIState {
   sharePopupVisible = $state(false);
   audioPermissionPopupVisible = $state(true);
   unsavedChangesDialogVisible = $state(false);
+  aboutDialogVisible = $state(false);
 
   shareUrl = $state('');
 
@@ -56,4 +57,12 @@ export class UIState {
   hideUnsavedChangesDialog() {
     this.unsavedChangesDialogVisible = false;
   }
+
+  showAboutDialog() {
+    this.aboutDialogVisible = true;
+  }
+
+  hideAboutDialog() {
+    this.aboutDialogVisible = false;
+  }
 }