diff --git a/.github/workflows/build-and-release.yml b/.github/workflows/build-and-release.yml
index a733013..75b87fb 100644
--- a/.github/workflows/build-and-release.yml
+++ b/.github/workflows/build-and-release.yml
@@ -108,10 +108,49 @@ jobs:
             ${{ steps.find-installer.outputs.deb_path }}
             dist/DevNullifier-linux-unpacked.zip
 
+  build-macos:
+    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.merged == true)
+    runs-on: macos-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "18"
+          cache: "npm"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build application
+        run: npm run build:mac
+
+      - name: Create ZIP archive from unpacked
+        run: |
+          cd dist
+          zip -r DevNullifier-mac-unpacked.zip mac/
+
+      - name: Find installer files
+        id: find-installer
+        run: |
+          DMG=$(find dist -name "*.dmg" | head -1)
+          echo "dmg_path=$DMG" >> $GITHUB_OUTPUT
+
+      - name: Upload macOS artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos-artifacts
+          path: |
+            ${{ steps.find-installer.outputs.dmg_path }}
+            dist/DevNullifier-mac-unpacked.zip
+
   create-release:
     if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.merged == true)
     runs-on: ubuntu-latest
-    needs: [build-windows, build-linux]
+    needs: [build-windows, build-linux, build-macos]
 
     permissions:
       contents: write
@@ -132,6 +171,12 @@ jobs:
           name: linux-artifacts
           path: artifacts/linux/
 
+      - name: Download macOS artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: macos-artifacts
+          path: artifacts/macos/
+
       - name: Create Release
         id: create_release
         uses: actions/create-release@v1
@@ -177,6 +222,12 @@ jobs:
           echo "appimage_path=$appimage" >> $GITHUB_OUTPUT
           echo "deb_path=$deb" >> $GITHUB_OUTPUT
 
+      - name: Find macOS files
+        id: find-macos-files
+        run: |
+          dmg=$(find artifacts/macos -name "*.dmg" | head -1)
+          echo "dmg_path=$dmg" >> $GITHUB_OUTPUT
+
       - name: Upload Linux AppImage
         uses: actions/upload-release-asset@v1
         env:
@@ -206,3 +257,23 @@ jobs:
           asset_path: artifacts/linux/DevNullifier-linux-unpacked.zip
           asset_name: ${{ github.ref_name == 'develop' && 'DevNullifier-linux-unpacked-dev.zip' || 'DevNullifier-linux-unpacked.zip' }}
           asset_content_type: application/zip
+
+      - name: Upload macOS DMG
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ${{ steps.find-macos-files.outputs.dmg_path }}
+          asset_name: ${{ github.ref_name == 'develop' && 'DevNullifier-mac-x64-dev.dmg' || 'DevNullifier-mac-x64.dmg' }}
+          asset_content_type: application/octet-stream
+
+      - name: Upload macOS ZIP Archive
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: artifacts/macos/DevNullifier-mac-unpacked.zip
+          asset_name: ${{ github.ref_name == 'develop' && 'DevNullifier-mac-unpacked-dev.zip' || 'DevNullifier-mac-unpacked.zip' }}
+          asset_content_type: application/zip
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a92fdf6..c733831 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 All notable changes to DevNullifier will be documented in this file.
 
+## [1.2.2] - Dark Mode
+
+### Added
+
+- **Dark Mode**: Add dark mode to the application
+
+## [1.2.1] - macOS Support
+
+### Added
+
+- **macOS Support**: Add support for macOS operating systems
+- **DMG Support**: Add support for DMG packaging
+- **ZIP Support**: Add support for ZIP packaging
+
 ## [1.2.0] - Linux Support
 
 ### Added
diff --git a/README.md b/README.md
index fbdf094..1c3c72c 100644
--- a/README.md
+++ b/README.md
@@ -2,10 +2,13 @@
 
 A cross-platform cleaner for application data and developer caches (node_modules, .cache, Library, Binary, Intermediate, etc.) built with Electron, Vue 3, and Vuetify 3.
 
+Now with dark mode!
+
 **Supported Platforms:**
 
 - Windows (AppData: Local, Roaming, LocalLow)
 - Linux (User directories: ~/.config, ~/.cache, ~/.local/share, ~/.local/state, /tmp)
+- macOS (User directories: ~/Library/Caches, ~/Library/Application Support, ~/Library/Logs)
 
 ## Download
 
@@ -26,6 +29,7 @@ Cleans application data folders that accumulate temporary files, caches, and jun
 
 - **Windows**: Temp folders, cache folders, crash dumps, pending files, log files in AppData (Local, Roaming, LocalLow)
 - **Linux**: Cache and temp folders in ~/.config, ~/.cache, ~/.local/share, ~/.local/state, /tmp
+- **macOS**: Cache and temp folders in ~/Library/Caches, ~/Library/Application Support, ~/Library/Logs
 
 ## Dev Cleaner
 
@@ -87,6 +91,16 @@ build.bat  # Build for production
 run.bat    # Run built application
 ```
 
+**Using macOS:**
+
+```bash
+npm install    # Install dependencies
+npm run dev    # Run in development
+npm run build  # Build for production
+```
+
+**Note for macOS users:** The app is unsigned, so you'll need to right-click → "Open" → "Open" the first time to bypass Gatekeeper.
+
 ## Usage
 
 1. Launch the application
@@ -109,6 +123,7 @@ npm run build:renderer  # Build renderer (Vue app)
 npm run build          # Build entire app
 npm run build:win      # Build for Windows
 npm run build:linux    # Build for Linux
+npm run build:mac      # Build for macOS
 ```
 
 ## License
diff --git a/package.json b/package.json
index 1060289..f90ba38 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "devnullifier",
-  "version": "1.2.0",
+  "version": "1.2.2",
   "description": "DevNullifier: Clean application data, dev caches (node_modules, .cache, Library, Binary, Intermediate, etc) with Electron, Vue 3, and Vuetify 3.",
   "main": "src/main/main.js",
   "scripts": {
@@ -11,7 +11,8 @@
     "build:renderer": "vite build",
     "build:main": "electron-builder --publish=never",
     "build:linux": "npm run build:renderer && electron-builder --linux --publish=never",
-    "build:win": "npm run build:renderer && electron-builder --win --publish=never"
+    "build:win": "npm run build:renderer && electron-builder --win --publish=never",
+    "build:mac": "npm run build:renderer && electron-builder --mac --publish=never"
   },
   "keywords": [
     "electron",
@@ -98,6 +99,26 @@
       "category": "Utility",
       "icon": "src/assets/icon-256.png"
     },
+    "mac": {
+      "target": [
+        {
+          "target": "dmg",
+          "arch": [
+            "x64",
+            "arm64"
+          ]
+        },
+        {
+          "target": "dir",
+          "arch": [
+            "x64",
+            "arm64"
+          ]
+        }
+      ],
+      "category": "public.app-category.utilities",
+      "icon": "src/assets/icon-512.png"
+    },
     "nsis": {
       "oneClick": false,
       "allowToChangeInstallationDirectory": true
diff --git a/src/main/appDataCleaner.js b/src/main/appDataCleaner.js
index 1510b88..ff38d83 100644
--- a/src/main/appDataCleaner.js
+++ b/src/main/appDataCleaner.js
@@ -14,7 +14,7 @@ const KEYWORDS = [
   "pending"
 ];
 
-// Get AppData paths (Windows) or equivalent user directories (Linux)
+// Get AppData paths (Windows) or equivalent user directories (Linux/macOS)
 function getAppDataPaths() {
   const paths = [];
 
@@ -48,6 +48,24 @@ function getAppDataPaths() {
         paths.push(dirPath);
       }
     });
+  } else if (process.platform === "darwin") {
+    const homeDir = os.homedir();
+
+    // Common macOS user directories where apps store data
+    const macOSPaths = [
+      path.join(homeDir, "Library/Caches"), // Application caches
+      path.join(homeDir, "Library/Application Support"), // Application data
+      path.join(homeDir, "Library/Logs"), // Application logs
+      path.join(homeDir, "Library/Preferences"), // Application preferences
+      "/tmp" // System temporary files
+    ];
+
+    // Add paths that exist
+    macOSPaths.forEach(dirPath => {
+      if (fsSync.existsSync(dirPath)) {
+        paths.push(dirPath);
+      }
+    });
   }
 
   return paths;
diff --git a/src/renderer/App.vue b/src/renderer/App.vue
index 094744d..385ca77 100644
--- a/src/renderer/App.vue
+++ b/src/renderer/App.vue
@@ -5,6 +5,25 @@
         <v-icon left>mdi-broom</v-icon>
         DevNullifier
       </v-app-bar-title>
+
+      <v-spacer></v-spacer>
+
+      <v-menu>
+        <template v-slot:activator="{ props }">
+          <v-btn icon v-bind="props">
+            <v-icon>{{ getThemeIcon() }}</v-icon>
+          </v-btn>
+        </template>
+        <v-list>
+          <v-list-item v-for="mode in themeModes" :key="mode.value" @click="setThemeMode(mode.value)"
+            :class="{ 'v-list-item--active': themeMode === mode.value }">
+            <template v-slot:prepend>
+              <v-icon>{{ mode.icon }}</v-icon>
+            </template>
+            <v-list-item-title>{{ mode.title }}</v-list-item-title>
+          </v-list-item>
+        </v-list>
+      </v-menu>
     </v-app-bar>
 
     <v-main>
@@ -32,18 +51,91 @@
       </v-container>
     </v-main>
 
-
-
     <NotificationSnackbar v-model="showSnackbar" :text="snackbarText" :color="snackbarColor" />
   </v-app>
 </template>
 
 <script setup>
-import { ref } from 'vue'
+import { ref, computed, onMounted, onUnmounted, watch } from 'vue'
+import { useTheme } from 'vuetify'
 import AppDataCleaner from './components/AppDataCleaner.vue'
 import DeveloperCleaner from './components/DeveloperCleaner.vue'
 import NotificationSnackbar from './components/NotificationSnackbar.vue'
 
+// Theme functionality
+const theme = useTheme()
+const themeMode = ref('system') // 'light', 'dark', 'system'
+let mediaQuery = null
+
+// Theme mode options
+const themeModes = [
+  { value: 'light', title: 'Light', icon: 'mdi-brightness-7' },
+  { value: 'dark', title: 'Dark', icon: 'mdi-brightness-4' },
+  { value: 'system', title: 'System', icon: 'mdi-brightness-auto' }
+]
+
+// Get system theme preference
+const getSystemTheme = () => {
+  return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'
+}
+
+// Apply theme based on mode
+const applyTheme = () => {
+  if (themeMode.value === 'system') {
+    theme.global.name.value = getSystemTheme()
+  } else {
+    theme.global.name.value = themeMode.value
+  }
+}
+
+// Get appropriate icon for current theme
+const getThemeIcon = () => {
+  if (themeMode.value === 'system') {
+    return 'mdi-brightness-auto'
+  }
+  return theme.global.name.value === 'dark' ? 'mdi-brightness-4' : 'mdi-brightness-7'
+}
+
+// Set theme mode
+const setThemeMode = (mode) => {
+  themeMode.value = mode
+  applyTheme()
+}
+
+// Handle system theme changes
+const handleSystemThemeChange = (e) => {
+  if (themeMode.value === 'system') {
+    theme.global.name.value = e.matches ? 'dark' : 'light'
+  }
+}
+
+// Load theme mode from localStorage on startup
+onMounted(() => {
+  const savedThemeMode = localStorage.getItem('devnullifier-theme-mode')
+  if (savedThemeMode && ['light', 'dark', 'system'].includes(savedThemeMode)) {
+    themeMode.value = savedThemeMode
+  }
+
+  // Apply initial theme
+  applyTheme()
+
+  // Set up system theme change listener
+  mediaQuery = window.matchMedia('(prefers-color-scheme: dark)')
+  mediaQuery.addEventListener('change', handleSystemThemeChange)
+})
+
+// Cleanup on unmount
+onUnmounted(() => {
+  if (mediaQuery) {
+    mediaQuery.removeEventListener('change', handleSystemThemeChange)
+  }
+})
+
+// Watch for theme mode changes and save to localStorage
+watch(themeMode, (newMode) => {
+  localStorage.setItem('devnullifier-theme-mode', newMode)
+})
+
 // Reactive state
 const activeTab = ref('appdata')
 const showSnackbar = ref(false)
diff --git a/src/renderer/components/DeveloperCleaner/CacheGroup.vue b/src/renderer/components/DeveloperCleaner/CacheGroup.vue
index dd49c49..be26e4b 100644
--- a/src/renderer/components/DeveloperCleaner/CacheGroup.vue
+++ b/src/renderer/components/DeveloperCleaner/CacheGroup.vue
@@ -2,7 +2,7 @@
     <div class="text-caption">
         <div v-for="cacheGroup in cacheGroups" :key="cacheGroup.pattern" class="mb-2">
             <!-- Cache Group Header -->
-            <div class="d-flex align-center pa-2 bg-grey-lighten-4 rounded">
+            <div class="d-flex align-center pa-2 rounded" :class="headerBackgroundClass">
                 <!-- Master checkbox for the group -->
                 <v-checkbox :model-value="getCacheGroupCheckboxState(cacheGroup)"
                     :indeterminate="getCacheGroupCheckboxState(cacheGroup) === null" color="primary" hide-details
@@ -34,7 +34,7 @@
                         <!-- For multiple matches, show pattern -->
                         <span v-else>{{ cacheGroup.pattern }}</span>
                     </div>
-                    <div class="text-grey">
+                    <div :class="secondaryTextClass">
                         {{ cacheGroup.matches.length }}
                         {{ cacheGroup.matches.length === 1 ? 'match' : 'matches' }} •
                         {{ formatSize(cacheGroup.selectedSize) }} of {{
@@ -78,7 +78,7 @@
                         </v-btn>
                         <div class="flex-grow-1">
                             <div class="font-weight-medium">{{ match.relativePath }}</div>
-                            <div class="text-grey">{{ formatSize(match.size) }}</div>
+                            <div :class="secondaryTextClass">{{ formatSize(match.size) }}</div>
                         </div>
                     </div>
                 </div>
@@ -104,8 +104,12 @@
 
 <script setup>
 import { computed } from 'vue'
+import { useTheme } from 'vuetify'
 import { filesize } from 'filesize'
 
+// Theme
+const theme = useTheme()
+
 // Props
 const props = defineProps({
     cacheGroups: {
@@ -125,6 +129,15 @@ const props = defineProps({
 // Emits
 const emit = defineEmits(['cache-selection-changed', 'open-folder-tree'])
 
+// Theme-aware computed properties
+const headerBackgroundClass = computed(() => {
+    return theme.global.name.value === 'dark' ? 'bg-grey-darken-3' : 'bg-grey-lighten-4'
+})
+
+const secondaryTextClass = computed(() => {
+    return theme.global.name.value === 'dark' ? 'text-grey-lighten-1' : 'text-grey'
+})
+
 // Computed properties
 const allCachesSelected = computed(() => {
     return props.cacheGroups.length > 0 && props.cacheGroups.every(group =>
diff --git a/src/renderer/main.js b/src/renderer/main.js
index 0f2797b..a8f7cfd 100644
--- a/src/renderer/main.js
+++ b/src/renderer/main.js
@@ -25,6 +25,17 @@ const vuetify = createVuetify({
           success: "#4CAF50",
           warning: "#FFC107"
         }
+      },
+      dark: {
+        colors: {
+          primary: "#90CAF9",
+          secondary: "#9E9E9E",
+          accent: "#BBDEFB",
+          error: "#EF5350",
+          info: "#64B5F6",
+          success: "#81C784",
+          warning: "#FFD54F"
+        }
       }
     }
   }