diff --git a/code/websites/pokedex.online/tests/unit/views/GamemasterExplorer.test.js b/code/websites/pokedex.online/tests/unit/views/GamemasterExplorer.test.js
new file mode 100644
index 0000000..29075fb
--- /dev/null
+++ b/code/websites/pokedex.online/tests/unit/views/GamemasterExplorer.test.js
@@ -0,0 +1,279 @@
+/**
+ * GamemasterExplorer View Tests
+ * Integration tests verifying the refactored component works correctly
+ */
+
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { ref } from 'vue';
+import GamemasterExplorer from '../../../src/views/GamemasterExplorer.vue';
+
+// Mock composables
+vi.mock('../../../src/composables/useGamemasterFiles.js', () => ({
+  useGamemasterFiles: vi.fn(() => ({
+    selectedFile: ref('pokemon.json'),
+    fileContent: ref('{"test": "data"}'),
+    fileLines: ref(['{', '  "test": "data"', '}']),
+    displayLines: ref(['{', '  "test": "data"', '}']),
+    isLoading: ref(false),
+    fileError: ref(null),
+    preferences: ref({
+      lineWrap: false,
+      darkMode: false,
+      showLineNumbers: true,
+      performanceMode: 'auto'
+    }),
+    hasFiles: ref(true),
+    fileTooLarge: ref(false),
+    loadStatus: vi.fn(),
+    formatSize: vi.fn(size => `${size} B`),
+    formatFileName: vi.fn(name => name),
+    getFileType: vi.fn(name => name.replace('.json', ''))
+  }))
+}));
+
+vi.mock('../../../src/composables/useGamemasterSearch.js', () => ({
+  useGamemasterSearch: vi.fn(() => ({
+    searchQuery: ref(''),
+    searchResults: ref([]),
+    currentResultIndex: ref(-1),
+    isSearching: ref(false),
+    searchError: ref(null),
+    executeSearch: vi.fn(),
+    clearSearch: vi.fn(),
+    goToNextResult: vi.fn(),
+    goToPrevResult: vi.fn()
+  }))
+}));
+
+vi.mock('../../../src/composables/useLineSelection.js', () => ({
+  useLineSelection: vi.fn(() => ({
+    selectedLines: ref(new Set()),
+    hasSelection: ref(false),
+    selectionCount: ref(0),
+    toggleLineSelection: vi.fn(),
+    clearSelection: vi.fn(),
+    selectAll: vi.fn(),
+    copySelected: vi.fn(),
+    exportSelected: vi.fn()
+  }))
+}));
+
+vi.mock('../../../src/composables/useJsonFilter.js', () => ({
+  default: vi.fn(() => ({
+    filterProperty: ref(''),
+    filterValue: ref(''),
+    filterMode: ref('equals'),
+    filteredData: ref([]),
+    setFilter: vi.fn(),
+    clearFilters: vi.fn(),
+    getUniqueValues: vi.fn(() => [])
+  }))
+}));
+
+vi.mock('../../../src/composables/useKeyboardShortcuts.js', () => ({
+  useKeyboardShortcuts: vi.fn()
+}));
+
+vi.mock('../../../src/composables/useUrlState.js', () => ({
+  useUrlState: vi.fn()
+}));
+
+vi.mock('../../../src/composables/useClipboard.js', () => ({
+  useClipboard: vi.fn(() => ({
+    copied: ref(false),
+    error: ref(null),
+    copy: vi.fn()
+  }))
+}));
+
+vi.mock('../../../src/utilities/gamemaster-client.js', () => ({
+  GamemasterClient: vi.fn(() => ({
+    getStatus: vi.fn(),
+    getFile: vi.fn()
+  }))
+}));
+
+describe('GamemasterExplorer', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders successfully', () => {
+    const wrapper = mount(GamemasterExplorer);
+    expect(wrapper.exists()).toBe(true);
+  });
+
+  it('shows loading state when isLoading is true', () => {
+    const { useGamemasterFiles } = await import(
+      '../../../src/composables/useGamemasterFiles.js'
+    );
+    useGamemasterFiles.mockReturnValueOnce({
+      selectedFile: ref(''),
+      fileContent: ref(''),
+      fileLines: ref([]),
+      displayLines: ref([]),
+      isLoading: ref(true),
+      fileError: ref(null),
+      preferences: ref({}),
+      hasFiles: ref(false),
+      fileTooLarge: ref(false),
+      loadStatus: vi.fn()
+    });
+
+    const wrapper = mount(GamemasterExplorer);
+    expect(wrapper.find('.loading-state').exists()).toBe(true);
+    expect(wrapper.text()).toContain('Loading Gamemaster Explorer');
+  });
+
+  it('shows error state when fileError exists', () => {
+    const { useGamemasterFiles } = await import(
+      '../../../src/composables/useGamemasterFiles.js'
+    );
+    useGamemasterFiles.mockReturnValueOnce({
+      selectedFile: ref(''),
+      fileContent: ref(''),
+      fileLines: ref([]),
+      displayLines: ref([]),
+      isLoading: ref(false),
+      fileError: ref('Failed to load files'),
+      preferences: ref({}),
+      hasFiles: ref(false),
+      fileTooLarge: ref(false),
+      loadStatus: vi.fn()
+    });
+
+    const wrapper = mount(GamemasterExplorer);
+    expect(wrapper.find('.error-state').exists()).toBe(true);
+    expect(wrapper.text()).toContain('Failed to load files');
+  });
+
+  it('shows no files state when hasFiles is false', () => {
+    const { useGamemasterFiles } = await import(
+      '../../../src/composables/useGamemasterFiles.js'
+    );
+    useGamemasterFiles.mockReturnValueOnce({
+      selectedFile: ref(''),
+      fileContent: ref(''),
+      fileLines: ref([]),
+      displayLines: ref([]),
+      isLoading: ref(false),
+      fileError: ref(null),
+      preferences: ref({}),
+      hasFiles: ref(false),
+      fileTooLarge: ref(false),
+      loadStatus: vi.fn()
+    });
+
+    const wrapper = mount(GamemasterExplorer);
+    expect(wrapper.find('.no-files-state').exists()).toBe(true);
+    expect(wrapper.text()).toContain('No Gamemaster Files Available');
+  });
+
+  it('renders main explorer interface when files are loaded', () => {
+    const wrapper = mount(GamemasterExplorer);
+    expect(wrapper.find('.explorer-container').exists()).toBe(true);
+    expect(wrapper.find('.explorer-header').exists()).toBe(true);
+    expect(wrapper.text()).toContain('Gamemaster Explorer');
+  });
+
+  it('includes all child components', () => {
+    const wrapper = mount(GamemasterExplorer);
+    
+    // Check for FileSelector component
+    expect(wrapper.findComponent({ name: 'FileSelector' }).exists()).toBe(true);
+    
+    // Check for SearchBar component
+    expect(wrapper.findComponent({ name: 'SearchBar' }).exists()).toBe(true);
+    
+    // Check for FilterPanel component
+    expect(wrapper.findComponent({ name: 'FilterPanel' }).exists()).toBe(true);
+    
+    // Check for JsonViewer component
+    expect(wrapper.findComponent({ name: 'JsonViewer' }).exists()).toBe(true);
+    
+    // Check for ActionToolbar component
+    expect(wrapper.findComponent({ name: 'ActionToolbar' }).exists()).toBe(true);
+  });
+
+  it('toggles help panel', async () => {
+    const wrapper = mount(GamemasterExplorer);
+    
+    expect(wrapper.find('.help-panel').exists()).toBe(false);
+    
+    // Click help button
+    const helpButton = wrapper.findAll('.btn-icon')[0];
+    await helpButton.trigger('click');
+    
+    expect(wrapper.find('.help-panel').exists()).toBe(true);
+    expect(wrapper.text()).toContain('Keyboard Shortcuts');
+  });
+
+  it('toggles settings panel', async () => {
+    const wrapper = mount(GamemasterExplorer);
+    
+    expect(wrapper.find('.settings-panel').exists()).toBe(false);
+    
+    // Click settings button
+    const settingsButton = wrapper.findAll('.btn-icon')[1];
+    await settingsButton.trigger('click');
+    
+    expect(wrapper.find('.settings-panel').exists()).toBe(true);
+    expect(wrapper.text()).toContain('Settings');
+  });
+
+  it('has back to home link', () => {
+    const wrapper = mount(GamemasterExplorer);
+    const backLink = wrapper.find('.back-button');
+    
+    expect(backLink.exists()).toBe(true);
+    expect(backLink.attributes('to')).toBe('/');
+  });
+
+  it('calls loadStatus on mount', () => {
+    const { useGamemasterFiles } = await import(
+      '../../../src/composables/useGamemasterFiles.js'
+    );
+    const mockLoadStatus = vi.fn();
+    useGamemasterFiles.mockReturnValueOnce({
+      selectedFile: ref(''),
+      fileContent: ref(''),
+      fileLines: ref([]),
+      displayLines: ref([]),
+      isLoading: ref(false),
+      fileError: ref(null),
+      preferences: ref({}),
+      hasFiles: ref(true),
+      fileTooLarge: ref(false),
+      loadStatus: mockLoadStatus
+    });
+
+    mount(GamemasterExplorer);
+    
+    // loadStatus should be called on mount
+    expect(mockLoadStatus).toHaveBeenCalled();
+  });
+
+  it('computes filterData from fileContent', () => {
+    const wrapper = mount(GamemasterExplorer);
+    
+    // Component should parse JSON content for filtering
+    const filterData = wrapper.vm.filterData;
+    expect(filterData).toBeDefined();
+  });
+
+  it('displays toast messages for clipboard operations', async () => {
+    const { useClipboard } = await import(
+      '../../../src/composables/useClipboard.js'
+    );
+    useClipboard.mockReturnValueOnce({
+      copied: ref(true),
+      error: ref(null),
+      copy: vi.fn()
+    });
+
+    const wrapper = mount(GamemasterExplorer);
+    expect(wrapper.find('.toast.success').exists()).toBe(true);
+    expect(wrapper.text()).toContain('Copied to clipboard');
+  });
+});