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# Next.js 15 Template with i18n and Shadcn UI
# Fast3DText
A modern, SEO-optimized template for Next.js 15 applications featuring server components, internationalization support, shadcn UI components, and theme switching capabilities. Perfect for building performant, accessible, and multilingual web applications.
[![Website](https://img.shields.io/badge/website-fast3dtext.com-blue)](https://fast3dtext.com)
An online **3D text generator** that allows you to create beautiful 3D lettering in your browser.
No installation required — just open and start creating!
## ✨ Features
- **Next.js 15**: Built on the latest [Next.js 15](https://nextjs.org/) React framework with App Router and Server Components for optimal performance
- **SEO Optimization**: Includes metadata API, structured data, and optimized page loading strategies
- **Internationalization**: Full i18n support using middleware-based routing with [next-intl](https://next-intl-docs.vercel.app/)
- **Shadcn UI**: Pre-configured [shadcn UI](https://ui.shadcn.com/) components using the new React Server Components pattern
- **Theme System**: CSS Variables-based theme system with light/dark mode toggle and system preference detection
- **Language Switching**: Seamless switching between languages (including RTL support for Arabic and other RTL languages)
- **OmitRTL Utility**: Helper component to control elements that should maintain LTR (left-to-right) rendering in RTL contexts
- **TypeScript**: Type-safe codebase with TypeScript configuration optimized for Next.js 15
- **Metadata API**: Built-in SEO metadata management using Next.js 15's metadata API
- 🎨 **3D Text Creation** — Type your text and instantly see it in 3D.
- 🖌 **Customizable Styles** — Change fonts, colors, gradients, background, and more.
- 🖼 **Export Options** — Save your design as PNG, JPG, or GLB for 3D use.
- 📂 **Custom Fonts Support** — Upload your own font files (JSON from facetype.js).
- 🌐 **No Signup Needed** — Everything runs in your browser.
- 🚀 **Fast and Lightweight** — Built with WebGL / Three.js for smooth rendering.
## 🚀 Getting Started
## 🖼 Screenshots
Clone the repository:
![Fast3DText Screenshot](public/og-image.png)
## 🌍 Live Demo
Visit: **[https://fast3dtext.com](https://fast3dtext.com)**
## 🛠 Tech Stack
- **Frontend**: React, Three.js, TypeScript
- **Rendering**: WebGL, Three.js TextGeometry
- **Build Tool**: Vite / Next.js (update with your actual stack)
## 📦 Installation
Clone the repo:
```bash
git clone https://github.com/S0vers/next-app-i18n-starter.git
git clone https://github.com/wms-why/fast3dtextonline.git
cd fast3dtextonline
```
Install dependencies:
```bash
npm install
# or
yarn
# or
pnpm install
# or
bun install
```
Start the development server:
```bash
npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev
```
Open [http://localhost:3000](http://localhost:3000) in your browser to see the result.
## 📋 Project Structure
The project follows Next.js 15's recommended App Router structure with additions for internationalization:
```
├── .next # Next.js build output
├── dictionary # i18n translation files
│ ├── ar.json # Arabic translations
│ └── en.json # English translations
├── node_modules # Dependencies
├── public # Static assets
├── src # Source code
│ ├── app # Next.js App Router
│ │ ├── [locale] # Dynamic locale routing
│ │ │ ├── page.tsx # Home page
│ │ │ ├── error.tsx # Error handling
│ │ │ ├── favicon.ico # Favicon
│ │ │ ├── globals.css # Global styles
│ │ │ ├── robots.txt # SEO robots file
│ │ │ └── sitemap.ts # Dynamic sitemap generation
│ │ └── components # Application components
│ │ ├── ui # shadcn UI components
│ │ ├── LanguageSwitcher.tsx # Language toggle component
│ │ ├── ModeToggle.tsx # Theme toggle component
│ │ ├── OmitRTL.tsx # RTL handling utility
│ │ └── theme-provider.tsx # Theme context provider
│ ├── i18n # Internationalization utilities
│ │ ├── navigation.ts # Localized navigation helpers
│ │ ├── requests.ts # i18n-aware API request helpers
│ │ └── routing.ts # Locale routing utilities
│ ├── lib # Utility functions and shared code
│ │ └── middleware.ts # i18n middleware for route handling
│ └── components.json # shadcn UI component configuration
├── .eslintrc.json # ESLint configuration
├── global.d.ts # Global TypeScript declarations
├── LICENSE # Project license
├── next-env.d.ts # Next.js TypeScript declarations
├── next.config.js # Next.js configuration
├── package.json # Project dependencies and scripts
├── bun.lock # Bun lock file
├── postcss.config.js # PostCSS configuration
├── README.md # Project documentation
└── tsconfig.json # TypeScript configuration
```
## 🌐 Internationalization
This template uses middleware-based i18n routing with Next.js 15. Language files are stored in the `dictionary/` directory.
### Adding a New Language
1. Create a new JSON file in the `dictionary/` directory (e.g., `fr.json`)
2. Add the language to the supported locales in `middleware.ts` and `lib/i18n.ts`
3. Add language option to the `LanguageSwitcher` component
## 🎨 Shadcn UI Components
Shadcn UI components are configured to work with Next.js 15 Server Components. Import them from the `components/ui/` directory:
```jsx
import { Button } from "@/components/ui/button";
export default function Home() {
return <Button>Click me</Button>;
}
```
## 🔄 OmitRTL Utility
The `OmitRTL` utility helps you control which elements should maintain LTR direction even when the site is in RTL mode.
### How to use the function:
```jsx
import { OmitRTL } from "@/components/OmitRTL";
function MyComponent() {
return (
<div>
<p>This text will follow the website's direction.</p>
<OmitRTL omitRTL={true}>
<img src="/logo.png" alt="Logo" />
<div>
<h2>This heading and content will always be LTR</h2>
<p>Regardless of the website's direction.</p>
</div>
</OmitRTL>
</div>
);
}
```
### NPM Package
If you just need the OmitRTL function, it's also available as an npm package:
```bash
npm i react-omit-rtl
```
```jsx
import React from "react";
import OmitRTL from "react-omit-rtl";
function App() {
return (
<OmitRTL omitRTL={true}>
<p>This text will not have RTL direction.</p>
</OmitRTL>
);
}
export default App;
```
## 🔍 SEO Optimization
The template provides comprehensive SEO features with the Next.js 15 Metadata API:
```jsx
export async function generateMetadata({
params,
}: {
params: { locale: string },
}): Promise<Metadata> {
const { locale } = await params;
const t = await getTranslations({ locale, namespace: "Metadata" });
return {
title: t("title"),
description: t("description"),
other: {
"google-site-verification": "********",
},
openGraph: {
title: t("title"),
description: t("description"),
url: `next-app-i18n-starter.vercel.app`,
siteName: "Next.js i18n Template",
images: [
{
url: "next-app-i18n-starter.vercel.app/og-image.png",
width: 1200,
height: 630,
},
],
locale: locale,
type: "website",
},
twitter: {
card: "summary_large_image",
title: t("title"),
description: t("description"),
images: ["next-app-i18n-starter.vercel.app/og-image.png"],
},
alternates: {
canonical: `next-app-i18n-starter.vercel.app`,
languages: {
en: "next-app-i18n-starter.vercel.app",
ar: "next-app-i18n-starter.vercel.app",
},
},
robots: {
index: true,
follow: true,
googleBot: {
index: true,
follow: true,
"max-video-preview": -1,
"max-image-preview": "large",
"max-snippet": -1,
},
},
};
}
```
Additionally, structured data is implemented using react-schemaorg for better search engine understanding:
```jsx
<script
{...(jsonLdScriptProps <
WebSite >
{
"@context": "https://schema.org",
"@type": "WebSite",
name: "Next.js i18n Template",
description:
"A humble Next 15 starter with i18n, shadcn UI, light/dark themes, and language switch.",
url: "next-app-i18n-starter.vercel.app",
})}
/>
```
Other SEO features included in the template:
- Canonical URLs to prevent duplicate content issues
- Language-specific metadata with translations
- Proper HTML lang attribute based on current locale
- Dynamic sitemap generation
- Robots.txt configuration
- Google site verification
- Optimized OpenGraph and Twitter card images
These features work together to help search engines better understand, index, and display your content to potential visitors across different languages and regions.
## 🤝 Contributing
We welcome contributions to improve this template! Here's how you can help:
1. Fork the repository
2. Create a new branch (`git checkout -b feature/your-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin feature/your-feature`)
5. Create a new Pull Request
## 📄 License
This project is licensed under the MIT License - see the LICENSE file for details.