UD5 Toolkit
Express Route Snippet Generator - Online Node.js API
Enter a resource name and HTTP method to get a complete Express route handler with try/catch and comments.
Next.js Page Boilerplate - Online App Router Setup
Options
(for pages with dynamic segments)
Generated Code
Configure and generate your Next.js page boilerplate.
Frequently Asked Questions
The App Router is Next.js's new paradigm (v13+) built on React Server Components. It uses a file-system based router where folders define routes and special files like
page.js, layout.js define UI. It supports layouts, streaming, and server-first rendering by default.- page.js – Unique UI of a route.
- layout.js – Shared UI across pages in a segment.
- loading.js – Instant loading state (Suspense-based).
- error.js – Error boundary for a segment and its children.
- template.js – Similar to layout but remounts on navigation.
- not-found.js – UI when
notFound()is called or no route matches.
TypeScript is strongly recommended for better developer experience, type safety, and auto-completion. Next.js has first-class TS support – just rename files to
.ts/.tsx.Yes, but it converts the component to a Client Component, which sends JavaScript to the browser. Use it only when you need interactivity (event listeners, state, browser APIs). Default to Server Components for better performance.
Create folder named like
[slug] and the page component receives params prop. Optionally export generateStaticParams to pre-render static paths at build time.Absolutely. Async Server Components are a core feature. You can fetch data directly inside the component with
await, no need for getServerSideProps.Wireframe to HTML Skeleton – Quick Layout Boilerplate
Select a layout (header‑content‑footer, sidebar, grid) and get the basic HTML5 structure with CSS grid or flexbox to start prototyping.
HTML Boilerplate Generator – Custom HTML5 Skeleton
Configure a modern HTML5 boilerplate with your choice of meta tags, social media cards, favicon links, and CSS/JS includes. Download or copy the code.
Online PDF Page Counter - Instant Document Inspector
Check how many pages a PDF has without uploading it (uses FileReader). Also shows file size and title if available. Simple and fast client-side tool.
Google Apps Script Web App Boilerplate - Online Starter Code
Generate the doGet() and doPost() boilerplate for a Google Apps Script web app. Ready to paste into the editor.
React Testing Library Skeleton - Online Test Boilerplate
Enter a component name and generate a complete RTL test file with render, screen, and common assertions. Fast testing setup.
Nuxt Page Boilerplate - Online Vue.js Setup
Generate a Nuxt 3 page component with script setup, metadata, and styles. For Vue.js developers. Copy the .vue file.
Svelte Component Boilerplate - Online Quick .svelte Template
Create a Svelte single‑file component with script, style, and markup. Choose TypeScript or JavaScript. Copy the .svelte file.
PDF Page Rotator - Online Fix Upside‑Down Pages
Select which pages to rotate left or right. Save the corrected PDF immediately. All local manipulation.
Web Page Resource Analyzer - Online List Assets & Size
Fetch a page and list all loaded assets (CSS, JS, images) with their sizes. See total page weight. Quick performance check.