Home / Ai / Chrome / webdev / Windows / Create Custom Browser Apps in Seconds Using ChatGPT & Data URLs

Create Custom Browser Apps in Seconds Using ChatGPT & Data URLs

, , ,

Want tiny apps that run directly in your browser, save your work, and need zero hosting? 😎 Meet Data URLs + localStorage — the ultimate hacker hack for instant browser apps. Everything lives in the URL itself — HTML, CSS, JS — and some of them even save your notes or sketches locally on your computer. 

Here’s how it works: a Data URL encodes an entire webpage inside the link. Combine it with localStorage and you can persist data across sessions. Type, doodle, or code — and it’s saved right in your browser. No cloud. No accounts. Totally private. 🔥

1️⃣ Notes App (Persistent Text)

This is perfect for quick notes, code snippets, or a journal. Your typing is saved automatically. 🖊️

Instructions:

  1. Copy the entire code block below.
  2. Paste it into your browser's address bar.
  3. Press Enter.
data:text/html;base64,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

How it works:

  • Your typing is saved automatically in localStorage.
  • Re-opening the URL reloads your saved text.
  • Minimalist, fast, and private — no servers or accounts.

2️⃣ Drawing Board (Sketchpad)

For doodles, diagrams, or mind maps. 🎨 Click & drag to draw, refresh to clear.


Instructions:

  1. Copy the code block below.
  2. Paste into your browser’s address bar.
  3. Press Enter and start drawing.
data:text/html,<html><head><title>Drawing Board</title></head><body style="margin:0;"><canvas id="canvas" style="display:block;"></canvas><script>const canvas=document.getElementById('canvas');const ctx=canvas.getContext('2d');let painting=false;function startPosition(e){painting=true;draw(e);}function endPosition(){painting=false;ctx.beginPath();}function draw(e){if(!painting)return;ctx.lineWidth=3;ctx.lineCap='round';ctx.strokeStyle='black';ctx.lineTo(e.clientX,e.clientY);ctx.stroke();ctx.beginPath();ctx.moveTo(e.clientX,e.clientY);}function resize(){canvas.width=window.innerWidth;canvas.height=window.innerHeight;}window.addEventListener('resize',resize);canvas.addEventListener('mousedown',startPosition);canvas.addEventListener('mouseup',endPosition);canvas.addEventListener('mousemove',draw);resize();</script></body></html>How it works:

🤖 Create Your Own One-URL App with ChatGPT

Want to make your own browser app in seconds? ChatGPT can generate Data URL apps for you! Just give it a prompt, and boom — instant copy-pasteable URL. 🚀

Example Prompt for ChatGPT:

"Create a single URL web app using a data URL. The app should be a simple [type of app: notes, todo list, drawing board, counter, etc.]. 
It should use HTML, CSS, and JavaScript, and save data in the browser's localStorage if needed. 
Give me the full data URL so I can paste it into the browser and it works instantly."


How to use it:

  1. Copy the prompt above and paste it into ChatGPT.
  2. Replace [type of app] with your desired app (like "todo list" or "mini calculator").
  3. Ask ChatGPT to generate the full data URL.
  4. Copy the generated URL into your browser’s address bar — your custom app is ready! 🎉

💡 Pro Tip: You can tweak the HTML/CSS/JS part ChatGPT outputs to customize colors, fonts, or features. This way, you get your own fully personalized mini-browser app in minutes! 🌈

💡 Why This Rocks

  • No hosting, no setup — just copy-paste URLs 😎
  • Works offline
  • Fast, private, and simple
  • Perfect for coding experiments, quick notes, or doodles

🎯 Conclusion

Data URLs + localStorage = instant browser apps. 🖥️💥 Tiny, private, and crazy fast. You just copy, paste, and your mini-app is ready. From persistent notes to quick sketches, to full custom apps via ChatGPT, this is a hacker’s dream for offline, lightweight tools. 🚀✨

Try it out now, tweak the code, and make your own personal browser apps. comment your one line url apps so the community can see your creativity. Your laptop just became a mini coding playground! 🎨💻

Create Custom Browser Apps in Seconds Using ChatGPT & Data URLs Create Custom Browser Apps in Seconds Using ChatGPT & Data URLs Reviewed by Saad Maqsood on October 01, 2025 Rating: 5

You May Also Like

No comments:

Subscribe to: Post Comments ( Atom )
Powered by Blogger.