diff --git a/ui/src/user/LibrarySelectionField.jsx b/ui/src/user/LibrarySelectionField.jsx
index b18d04951..c2bf9eaba 100644
--- a/ui/src/user/LibrarySelectionField.jsx
+++ b/ui/src/user/LibrarySelectionField.jsx
@@ -1,22 +1,39 @@
-import { useInput, useTranslate } from 'react-admin'
+import { useInput, useTranslate, useRecordContext } from 'react-admin'
 import { Box, FormControl, FormLabel, Typography } from '@material-ui/core'
 import { SelectLibraryInput } from '../common/SelectLibraryInput.jsx'
-import React from 'react'
+import React, { useMemo } from 'react'
 
 export const LibrarySelectionField = () => {
   const translate = useTranslate()
+  const record = useRecordContext()
+
   const {
     input: { name, onChange, value },
     meta: { error, touched },
   } = useInput({ source: 'libraryIds' })
 
+  // Extract library IDs from either 'libraries' array or 'libraryIds' array
+  const libraryIds = useMemo(() => {
+    // First check if form has libraryIds (create mode or already transformed)
+    if (value && Array.isArray(value)) {
+      return value
+    }
+
+    // Then check if record has libraries array (edit mode from backend)
+    if (record?.libraries && Array.isArray(record.libraries)) {
+      return record.libraries.map((lib) => lib.id)
+    }
+
+    return []
+  }, [value, record])
+
   return (
     <FormControl error={!!(touched && error)} fullWidth margin="normal">
       <FormLabel component="legend" required>
         {translate('resources.user.fields.libraries')}
       </FormLabel>
       <Box mt={1} mb={1}>
-        <SelectLibraryInput onChange={onChange} value={value || []} />
+        <SelectLibraryInput onChange={onChange} value={libraryIds} />
       </Box>
       {touched && error && (
         <Typography color="error" variant="caption">
diff --git a/ui/src/user/LibrarySelectionField.test.jsx b/ui/src/user/LibrarySelectionField.test.jsx
index 849c8ba17..9777bab99 100644
--- a/ui/src/user/LibrarySelectionField.test.jsx
+++ b/ui/src/user/LibrarySelectionField.test.jsx
@@ -1,7 +1,7 @@
 import * as React from 'react'
 import { render, screen, cleanup } from '@testing-library/react'
 import { LibrarySelectionField } from './LibrarySelectionField'
-import { useInput, useTranslate } from 'react-admin'
+import { useInput, useTranslate, useRecordContext } from 'react-admin'
 import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest'
 import { SelectLibraryInput } from '../common/SelectLibraryInput'
 
@@ -9,6 +9,7 @@ import { SelectLibraryInput } from '../common/SelectLibraryInput'
 vi.mock('react-admin', () => ({
   useInput: vi.fn(),
   useTranslate: vi.fn(),
+  useRecordContext: vi.fn(),
 }))
 
 // Mock the SelectLibraryInput component
@@ -34,6 +35,7 @@ describe('<LibrarySelectionField />', () => {
   beforeEach(() => {
     useInput.mockReturnValue(defaultProps)
     useTranslate.mockReturnValue(mockTranslate)
+    useRecordContext.mockReturnValue({})
     SelectLibraryInput.mockClear()
   })
 
@@ -106,4 +108,61 @@ describe('<LibrarySelectionField />', () => {
       expect.anything(),
     )
   })
+
+  it('should extract library IDs from record libraries array when editing user', () => {
+    // Mock a record with libraries array (from backend during edit)
+    useRecordContext.mockReturnValue({
+      id: 'user123',
+      name: 'John Doe',
+      libraries: [
+        { id: 1, name: 'Music Library 1', path: '/music1' },
+        { id: 3, name: 'Music Library 3', path: '/music3' },
+      ],
+    })
+
+    // Mock input without libraryIds (edit mode scenario)
+    useInput.mockReturnValue({
+      ...defaultProps,
+      input: {
+        ...defaultProps.input,
+        value: undefined,
+      },
+    })
+
+    render(<LibrarySelectionField />)
+    expect(SelectLibraryInput).toHaveBeenCalledWith(
+      expect.objectContaining({
+        value: [1, 3], // Should extract IDs from libraries array
+      }),
+      expect.anything(),
+    )
+  })
+
+  it('should prefer libraryIds when both libraryIds and libraries are present', () => {
+    // Mock a record with libraries array
+    useRecordContext.mockReturnValue({
+      id: 'user123',
+      libraries: [
+        { id: 1, name: 'Music Library 1', path: '/music1' },
+        { id: 3, name: 'Music Library 3', path: '/music3' },
+      ],
+    })
+
+    // Mock input with explicit libraryIds (create mode or already transformed)
+    useInput.mockReturnValue({
+      ...defaultProps,
+      input: {
+        ...defaultProps.input,
+        value: [2, 4], // Different IDs than in libraries
+      },
+    })
+
+    render(<LibrarySelectionField />)
+    expect(SelectLibraryInput).toHaveBeenCalledWith(
+      expect.objectContaining({
+        value: [2, 4], // Should prefer libraryIds over libraries
+      }),
+      expect.anything(),
+    )
+  })
 })
diff --git a/ui/src/user/UserEdit.test.jsx b/ui/src/user/UserEdit.test.jsx
new file mode 100644
index 000000000..75a9a1ada
--- /dev/null
+++ b/ui/src/user/UserEdit.test.jsx
@@ -0,0 +1,130 @@
+import * as React from 'react'
+import { render, screen } from '@testing-library/react'
+import UserEdit from './UserEdit'
+import { describe, it, expect, vi } from 'vitest'
+
+const defaultUser = {
+  id: 'user1',
+  userName: 'testuser',
+  name: 'Test User',
+  email: 'test@example.com',
+  isAdmin: false,
+  libraries: [
+    { id: 1, name: 'Library 1', path: '/music1' },
+    { id: 2, name: 'Library 2', path: '/music2' },
+  ],
+  lastLoginAt: '2023-01-01T12:00:00Z',
+  lastAccessAt: '2023-01-02T12:00:00Z',
+  updatedAt: '2023-01-03T12:00:00Z',
+  createdAt: '2023-01-04T12:00:00Z',
+}
+
+const adminUser = {
+  ...defaultUser,
+  id: 'admin1',
+  userName: 'admin',
+  name: 'Admin User',
+  isAdmin: true,
+}
+
+// Mock React-Admin completely with simpler implementations
+vi.mock('react-admin', () => ({
+  Edit: ({ children, title }) => (
+    <div data-testid="edit-component">
+      {title}
+      {children}
+    </div>
+  ),
+  SimpleForm: ({ children }) => (
+    <form data-testid="simple-form">{children}</form>
+  ),
+  TextInput: ({ source }) => <input data-testid={`text-input-${source}`} />,
+  BooleanInput: ({ source }) => (
+    <input type="checkbox" data-testid={`boolean-input-${source}`} />
+  ),
+  DateField: ({ source }) => (
+    <div data-testid={`date-field-${source}`}>Date</div>
+  ),
+  PasswordInput: ({ source }) => (
+    <input type="password" data-testid={`password-input-${source}`} />
+  ),
+  Toolbar: ({ children }) => <div data-testid="toolbar">{children}</div>,
+  SaveButton: () => <button data-testid="save-button">Save</button>,
+  FormDataConsumer: ({ children }) => children({ formData: {} }),
+  Typography: ({ children }) => <p>{children}</p>,
+  required: () => () => null,
+  email: () => () => null,
+  useMutation: () => [vi.fn()],
+  useNotify: () => vi.fn(),
+  useRedirect: () => vi.fn(),
+  useRefresh: () => vi.fn(),
+  usePermissions: () => ({ permissions: 'admin' }),
+  useTranslate: () => (key) => key,
+}))
+
+vi.mock('./LibrarySelectionField.jsx', () => ({
+  LibrarySelectionField: () => <div data-testid="library-selection-field" />,
+}))
+
+vi.mock('./DeleteUserButton', () => ({
+  __esModule: true,
+  default: () => <button data-testid="delete-user-button">Delete</button>,
+}))
+
+vi.mock('../common', () => ({
+  Title: ({ subTitle }) => <div data-testid="title">{subTitle}</div>,
+}))
+
+// Mock Material-UI
+vi.mock('@material-ui/core/styles', () => ({
+  makeStyles: () => () => ({}),
+}))
+
+vi.mock('@material-ui/core', () => ({
+  Typography: ({ children }) => <p>{children}</p>,
+}))
+
+describe('<UserEdit />', () => {
+  it('should render the user edit form', () => {
+    render(<UserEdit id="user1" permissions="admin" />)
+
+    // Check if the edit component renders
+    expect(screen.getByTestId('edit-component')).toBeInTheDocument()
+    expect(screen.getByTestId('simple-form')).toBeInTheDocument()
+  })
+
+  it('should render text inputs for admin users', () => {
+    render(<UserEdit id="user1" permissions="admin" />)
+
+    // Should render username input for admin
+    expect(screen.getByTestId('text-input-userName')).toBeInTheDocument()
+    expect(screen.getByTestId('text-input-name')).toBeInTheDocument()
+    expect(screen.getByTestId('text-input-email')).toBeInTheDocument()
+  })
+
+  it('should render admin checkbox for admin permissions', () => {
+    render(<UserEdit id="user1" permissions="admin" />)
+
+    // Should render isAdmin checkbox for admin users
+    expect(screen.getByTestId('boolean-input-isAdmin')).toBeInTheDocument()
+  })
+
+  it('should render date fields', () => {
+    render(<UserEdit id="user1" permissions="admin" />)
+
+    expect(screen.getByTestId('date-field-lastLoginAt')).toBeInTheDocument()
+    expect(screen.getByTestId('date-field-lastAccessAt')).toBeInTheDocument()
+    expect(screen.getByTestId('date-field-updatedAt')).toBeInTheDocument()
+    expect(screen.getByTestId('date-field-createdAt')).toBeInTheDocument()
+  })
+
+  it('should not render username input for non-admin users', () => {
+    render(<UserEdit id="user1" permissions="user" />)
+
+    // Should not render username input for non-admin
+    expect(screen.queryByTestId('text-input-userName')).not.toBeInTheDocument()
+    // But should still render name and email
+    expect(screen.getByTestId('text-input-name')).toBeInTheDocument()
+    expect(screen.getByTestId('text-input-email')).toBeInTheDocument()
+  })
+})