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🔍 Introducing `responsive-debugger`: Instantly Visualize Breakpoints While Developing

Tags: npm, frontend, tailwindcss, responsive-design, web-development, developer-tools

🚀 Overview

One of the most overlooked — yet critical — parts of frontend development is responsive design debugging. While tools like Chrome DevTools are powerful, they can be cumbersome for quick layout visualization.

That's why I built responsive-debugger — a lightweight, plug-and-play utility to instantly visualize screen size breakpoints right in the browser, during development.

✅ Key Features

📐 Displays screen size + breakpoint in real-time
🧠 No DevTools toggling
🪶 Tiny footprint — no external dependencies
🎨 Customizable themes and position
⚡ Framework-agnostic (React, Vue, Svelte, plain HTML, etc.)
🛠️ Perfect companion for Tailwind, Bootstrap, or any responsive CSS framework

📦 Installation

You can install responsive-debugger globally or as a dev dependency:

npm install responsive-debugger --save-dev

Or using Yarn:

yarn add responsive-debugger --dev

🔧 Usage

Just import and initialize it in your app (preferably only in dev):

import { injectDebugger } from 'responsive-debugger';

injectDebugger({
  position: 'top-right', // top-left | top-right | bottom-left | bottom-right
  theme: 'dark', // or 'light'
  breakpoints: {
    sm: 640,
    md: 768,
    lg: 1024,
    xl: 1280,
    '2xl': 1536,
  },
});

The breakpoint viewer will appear in the corner of your screen showing:

📱 sm | 640px
💻 md | 768px
🖥️ lg | 1024px

💡 Ideal For:

Tailwind CSS devs working on responsive layouts
Freelancers & agencies doing quick layout audits
Frontend teams improving handoff with designers
Developers who hate resizing the browser 100 times a day 😅

🧱 Tech Stack

Built using:

TypeScript
Vanilla DOM manipulation (no frameworks)
Zero dependencies — ultra lightweight

🧑‍💻 Why I Built This

As a frontend developer, I was constantly resizing my browser, opening DevTools, checking screen widths — it interrupted my flow. I wanted something always visible but non-intrusive.

So I built responsive-debugger to stay in the zone while building fluid UIs.

📈 Future Plans

🎛️ UI configurator panel
🧩 Chrome Extension version
🔌 Framework plugins (Next.js, Vue, etc.)
💬 Community suggestions!

Got ideas, issues, or want to contribute? Head to the GitHub repo:

🔗 GitHub Repository

If you like this tool, consider starring the repo ⭐ or sponsoring for continued development ❤️

📣 Spread the Word

If you find responsive-debugger helpful, please share it with your team or on Twitter/X/LinkedIn!

npm install responsive-debugger --save-dev

💬 Feedback?

Drop a comment or open an issue — I’d love to hear how you’re using responsive-debugger.

🧠 TL;DR

responsive-debugger is the lightweight tool I wish I had years ago. It’s here to help developers build more responsive, user-friendly interfaces without interrupting their flow.

Give it a try — your workflow will thank you.

🔍 Introducing responsive-debugger: Instantly Visualize Breakpoints While Developing