diff --git a/src/components/dialogs/__tests__/DialogJsonTab.test.js b/src/components/dialogs/__tests__/DialogJsonTab.test.js
new file mode 100644
index 00000000..5472c56f
--- /dev/null
+++ b/src/components/dialogs/__tests__/DialogJsonTab.test.js
@@ -0,0 +1,227 @@
+import { beforeEach, describe, expect, test, vi } from 'vitest';
+import { createTestingPinia } from '@pinia/testing';
+import { mount } from '@vue/test-utils';
+import { ref } from 'vue';
+
+const { mockDownloadAndSaveJson } = vi.hoisted(() => ({
+    mockDownloadAndSaveJson: vi.fn()
+}));
+vi.mock('../../../shared/utils', async (importOriginal) => {
+    const actual = await importOriginal();
+    return {
+        ...actual,
+        downloadAndSaveJson: mockDownloadAndSaveJson
+    };
+});
+
+vi.mock('vue-json-pretty', () => ({
+    default: {
+        name: 'VueJsonPretty',
+        template: '<div class="vjp-stub" />',
+        props: ['data', 'deep', 'theme', 'showIcon']
+    }
+}));
+
+vi.mock('../../../views/Feed/Feed.vue', () => ({
+    default: { template: '<div />' }
+}));
+vi.mock('../../../views/Feed/columns.jsx', () => ({ columns: [] }));
+vi.mock('../../../plugin/router', () => ({
+    router: {
+        beforeEach: vi.fn(),
+        push: vi.fn(),
+        replace: vi.fn(),
+        currentRoute: ref({ path: '/', name: '', meta: {} }),
+        isReady: vi.fn().mockResolvedValue(true)
+    },
+    initRouter: vi.fn()
+}));
+vi.mock('vue-router', async (importOriginal) => {
+    const actual = await importOriginal();
+    return {
+        ...actual,
+        useRouter: vi.fn(() => ({
+            push: vi.fn(),
+            replace: vi.fn(),
+            currentRoute: ref({ path: '/', name: '', meta: {} })
+        }))
+    };
+});
+vi.mock('../../../plugin/interopApi', () => ({ initInteropApi: vi.fn() }));
+vi.mock('../../../service/database', () => ({
+    database: new Proxy(
+        {},
+        {
+            get: (_target, prop) => {
+                if (prop === '__esModule') return false;
+                return vi.fn().mockResolvedValue(null);
+            }
+        }
+    )
+}));
+vi.mock('../../../service/config', () => ({
+    default: {
+        init: vi.fn(),
+        getString: vi.fn().mockImplementation((_k, d) => d ?? '{}'),
+        setString: vi.fn(),
+        getBool: vi.fn().mockImplementation((_k, d) => d ?? false),
+        setBool: vi.fn(),
+        getInt: vi.fn().mockImplementation((_k, d) => d ?? 0),
+        setInt: vi.fn(),
+        getFloat: vi.fn().mockImplementation((_k, d) => d ?? 0),
+        setFloat: vi.fn(),
+        getObject: vi.fn().mockReturnValue(null),
+        setObject: vi.fn(),
+        getArray: vi.fn().mockReturnValue([]),
+        setArray: vi.fn(),
+        remove: vi.fn()
+    }
+}));
+vi.mock('../../../service/jsonStorage', () => ({ default: vi.fn() }));
+vi.mock('../../../service/watchState', () => ({
+    watchState: { isLoggedIn: false }
+}));
+
+import DialogJsonTab from '../DialogJsonTab.vue';
+
+import en from '../../../localization/en.json';
+
+import { createI18n } from 'vue-i18n';
+
+const i18n = createI18n({
+    locale: 'en',
+    fallbackLocale: 'en',
+    legacy: false,
+    globalInjection: false,
+    missingWarn: false,
+    fallbackWarn: false,
+    messages: { en }
+});
+
+/**
+ *
+ * @param props
+ * @param storeOverrides
+ */
+function mountComponent(props = {}, storeOverrides = {}) {
+    const pinia = createTestingPinia({
+        stubActions: false,
+        initialState: {
+            AppearanceSettings: {
+                isDarkMode: false,
+                ...storeOverrides
+            }
+        }
+    });
+
+    return mount(DialogJsonTab, {
+        props: {
+            dialogId: 'usr_test123',
+            dialogRef: { id: 'usr_test123', displayName: 'Test' },
+            treeData: { id: 'usr_test123', name: 'TestData' },
+            treeDataKey: 'usr_test123',
+            ...props
+        },
+        global: {
+            plugins: [i18n, pinia],
+            stubs: {
+                RefreshCw: { template: '<svg class="refresh-icon" />' },
+                Download: { template: '<svg class="download-icon" />' }
+            }
+        }
+    });
+}
+
+describe('DialogJsonTab.vue', () => {
+    beforeEach(() => {
+        vi.clearAllMocks();
+    });
+
+    describe('rendering', () => {
+        test('renders refresh and download buttons', () => {
+            const wrapper = mountComponent();
+            const buttons = wrapper.findAll('button');
+            expect(buttons).toHaveLength(2);
+        });
+
+        test('renders vue-json-pretty with treeData', () => {
+            const wrapper = mountComponent();
+            const jsonPretty = wrapper.findComponent({ name: 'VueJsonPretty' });
+            expect(jsonPretty.exists()).toBe(true);
+            expect(jsonPretty.props('data')).toEqual({
+                id: 'usr_test123',
+                name: 'TestData'
+            });
+            expect(jsonPretty.props('deep')).toBe(2);
+        });
+
+        test('uses light theme by default', () => {
+            const wrapper = mountComponent();
+            const jsonPretty = wrapper.findComponent({ name: 'VueJsonPretty' });
+            expect(jsonPretty.props('theme')).toBe('light');
+        });
+
+        test('uses dark theme when isDarkMode is true', () => {
+            const wrapper = mountComponent({}, { isDarkMode: true });
+            const jsonPretty = wrapper.findComponent({ name: 'VueJsonPretty' });
+            expect(jsonPretty.props('theme')).toBe('dark');
+        });
+    });
+
+    describe('fileAnalysis', () => {
+        test('does not render extra json-pretty when fileAnalysis is null', () => {
+            const wrapper = mountComponent({ fileAnalysis: null });
+            const jsonComponents = wrapper.findAllComponents({
+                name: 'VueJsonPretty'
+            });
+            expect(jsonComponents).toHaveLength(1);
+        });
+
+        test('does not render extra json-pretty when fileAnalysis is empty object', () => {
+            const wrapper = mountComponent({ fileAnalysis: {} });
+            const jsonComponents = wrapper.findAllComponents({
+                name: 'VueJsonPretty'
+            });
+            expect(jsonComponents).toHaveLength(1);
+        });
+
+        test('renders extra json-pretty when fileAnalysis has data', () => {
+            const wrapper = mountComponent({
+                fileAnalysis: { size: 1024, format: 'vrca' }
+            });
+            const jsonComponents = wrapper.findAllComponents({
+                name: 'VueJsonPretty'
+            });
+            expect(jsonComponents).toHaveLength(2);
+            expect(jsonComponents[1].props('data')).toEqual({
+                size: 1024,
+                format: 'vrca'
+            });
+        });
+    });
+
+    describe('interactions', () => {
+        test('emits refresh when refresh button is clicked', async () => {
+            const wrapper = mountComponent();
+            const buttons = wrapper.findAll('button');
+            // First button is refresh
+            await buttons[0].trigger('click');
+            expect(wrapper.emitted('refresh')).toHaveLength(1);
+        });
+
+        test('calls downloadAndSaveJson with dialogId and dialogRef when download button is clicked', async () => {
+            const dialogRef = { id: 'usr_test123', displayName: 'Test' };
+            const wrapper = mountComponent({
+                dialogId: 'usr_test123',
+                dialogRef
+            });
+            const buttons = wrapper.findAll('button');
+            // Second button is download
+            await buttons[1].trigger('click');
+            expect(mockDownloadAndSaveJson).toHaveBeenCalledWith(
+                'usr_test123',
+                dialogRef
+            );
+        });
+    });
+});