All Next.js Tools
Utilities for Next.js configuration and routing. 5 tools, 17 guides and resources — all free, browser-based, no sign-up required.
5
Interactive Tools
17
Guides & Resources
All Next.js Tools
App Router Path Builder
Visual builder for Next.js App Router routes including groups and parallel routes.
Middleware Matcher Builder
Build and test Next.js middleware config matcher patterns visually.
next.config Visualizer
Parse and explore next.config.js/ts options with descriptions and defaults.
Image Optimization Calculator
Calculate optimal image dimensions, sizes, and srcset for Next.js Image.
Route Handler Generator
Generate Next.js App Router API route boilerplate with type safety.
How-to Guides
How to Use App Router Path Builder: Complete Guide
For nextjs/app-router-builder
How to Use Middleware Matcher Builder: Complete Guide
For nextjs/middleware-matcher
How to Use next.config Visualizer: Complete Guide
For nextjs/config-visualizer
How to Use Image Optimization Calculator: Complete Guide
For nextjs/image-calculator
How to Use Route Handler Generator: Complete Guide
For nextjs/route-handler-generator
Best Practices
App Router Path Builder Best Practices: Tips for Better Results
For nextjs/app-router-builder
Middleware Matcher Builder Best Practices: Tips for Better Results
For nextjs/middleware-matcher
next.config Visualizer Best Practices: Tips for Better Results
For nextjs/config-visualizer
Image Optimization Calculator Best Practices: Tips for Better Results
For nextjs/image-calculator
Route Handler Generator Best Practices: Tips for Better Results
For nextjs/route-handler-generator
Tool Comparisons
App Router Path Builder vs Route Handler Generator: Complete Comparison
App Router Path Builder vs Middleware Matcher Builder: Complete Comparison
App Router Path Builder vs next.config Visualizer: Complete Comparison
Middleware Matcher Builder vs Route Handler Generator: Complete Comparison
next.config Visualizer vs Image Optimization Calculator: Complete Comparison
next.config Visualizer vs Middleware Matcher Builder: Complete Comparison
Image Optimization Calculator vs Route Handler Generator: Complete Comparison
Why Use Next.js Tools?
All 5 tools in this collection are completely free, run 100% in your browser, and require no sign-up or data uploads. Your privacy is guaranteed — every tool processes data locally on your device. Whether you are a developer, designer, content creator, or student, these tools are designed to save you time and get the job done.