How to Use Middleware Matcher Builder: Complete Step-by-Step Guide
Learn how to use Middleware Matcher Builder with our complete step-by-step guide. Includes pro tips, common use cases, and expert best practices for getting the best results.
What Is Middleware Matcher Builder?
Build and test Next.js middleware config matcher patterns visually.
Pro Tips for Using Middleware Matcher Builder
Get the most out of Middleware Matcher Builder with these expert tips:
Use negative lookahead for exclusions: Use patterns like `/((?!api|_next/static|favicon.ico).*)` to exclude common paths from middleware execution.
Order matchers for performance: List more specific paths first in your matcher array so they match faster, improving middleware performance.
Common Use Cases for Middleware Matcher Builder
Middleware Matcher Builder is perfect for:
Why Use Middleware Matcher Builder Online?
Middleware Matcher Builder runs entirely in your browser — no downloads, no uploads, no sign-up required. Your data stays private on your device. It is free to use with no limitations, making it the perfect choice for developers, designers, and professionals who need quick, reliable results without compromising security.
Frequently Asked Questions
What does a middleware matcher do?▼
The matcher config in next.config.js tells Next.js which paths should trigger your middleware. It uses pattern matching to include or exclude specific routes.
How do I exclude certain paths from middleware?▼
Use negative lookahead patterns or list specific paths to match. The builder lets you visually add and remove paths from the matcher configuration.
Can I test if a URL matches my pattern?▼
Yes. The live testing feature lets you enter any URL and see instantly whether it matches or is excluded by your matcher pattern.
Is my matcher config sent to a server?▼
No. All pattern building and testing happens locally in your browser.