Client Component Not Rendering in App Router
Your client component doesn't render in the Next.js 13+ App Router, or renders blank with no errors. The component markup doesn't appear in the browser or page layout.
This occurs when server/client boundaries aren't properly configured, 'use client' directives are missing or misplaced, or component imports cross server-client boundaries incorrectly.
Error Messages You Might See
Common Causes
- Missing 'use client' directive at top of interactive component file
- 'use client' directive not at very first line before imports
- Client component importing server-only packages (fs, database, etc)
- Server component trying to use hooks (useState, useEffect) without 'use client'
- Parent component is server component, but trying to pass client component children with hooks
How to Fix It
Add 'use client' directive: At the very top of any component using hooks: 'use client' as first line, before imports.
Check component structure: If parent is server, ensure client children are properly wrapped and exported separately.
Debug imports: Verify component doesn't import server-only modules (fs, path, database drivers).
React DevTools: Use React DevTools browser extension to check if component mounts in component tree.
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Get HelpFrequently Asked Questions
Where does 'use client' go in my file?
Must be the first line of code, before any imports: 'use client'; import React from 'react';
Do I need use client on every component?
Only components using hooks (useState, useEffect, etc). Server components are default and don't need a directive.
Can a server component use a client component?
Yes, as long as client component is passed as children or props to server component. Wrap appropriately.