MonDive#13: Build anything with ChatGPT o3 and Canvas

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Today in MonDive🔥

• Master AI Tools, Set Automations & Build Agents

• Build Apps with ChatGPT o3 and Canvas

• Prepare your master prompt

• Use the Master Prompt

• Preview and Modify your App

• Save the Code

• Try your App

• Deploy your app on the Web

• The Smartest AI Library on the Internet

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Build Apps with ChatGPT o3 and Canvas

Imagine building fully functional web apps—without writing a single line of code.
No frameworks to install. No toolchain setup. Just you, an idea, and ChatGPT o3 with Canvas.

✅ Paul Couvert, A productivity coach, built a fully responsive “Prompt Organizer” app in under 10 minutes—using only ChatGPT o3 and Canvas.

Today, we’ll try to build the same Prompt Organizer.
Read till the end to learn how we do it.

1. Prepare your master prompt

• Navigate to ChatGPT’s Prompt Enhancer GPT

  

• Briefly describe what you want, and it will generate a comprehensive prompt for you to use.

Build a "Prompt Organizer" in html css js in a single file with an in-browser database

2. Use the Master Prompt

• Open ChatGPT and select the o3 model.

• Make sure to activate the Canvas option.

• Paste the prompt into ChatGPT from “Prompt Enhancer.”

You're a senior front-end developer with expertise in building productivity tools using web technologies. Create a single-file application that serves as a "Prompt Organizer" using HTML, CSS, and JavaScript. This app should allow users to add, edit, delete, and categorize AI prompts, and store them persistently using an in-browser database such as IndexedDB or localStorage. The interface should be clean, responsive, and optimized for desktop and mobile. For example, users should be able to tag prompts as "creative," "technical," or "marketing," and filter them accordingly. Present the full code in a single self-contained HTML file with embedded CSS and JavaScript. Use a modern, minimalist design and keep the tone of your code well-documented and developer-friendly.

3. Preview and Modify your App

• Once the o3 model has finished generating the output, your app is ready!

• Preview your app.

• If you'd like to change the color or adjust the design, simply ask ChatGPT—it will handle it for you. Just enjoy the experience!

  

4. Save the Code

• Copy the code provided by ChatGPT.

• Open Notepad (or any other code editor you prefer).

• Paste the code and save it as a .html file—e.g., PromptOrganizer.html.

  

5. Try your App

• Locate the PromptOrganizer.html file and open it in your browser (e.g., Chrome).

• Add any prompts you like—they will be saved automatically in your browser's localStorage or IndexedDB.

• Even if you close the tab, your prompts will remain saved. When you reopen the file, everything will still be there.

  

6. Deploy your app on the Web

• You can use the Prompt Organizer locally anytime, but if you want to share it with others or use it from your phone or another computer, you can deploy it online for free.

  Follow these steps:

  • Go to Cloudflare and create an account.

  • Navigate to Workers & Pages > Click Create > Choose Pages.

  • You'll see an option to "Upload assets".

  • Give your project a name and click Create project.

  • Upload your app. Make sure your HTML file is named index.html and upload it inside a folder.

  • After uploading, click the Visit button to access your live site.

  You can now share the link with others!

Here’s the live version of our app: The Prompt Organizer

Credit: This tutorial was originally shared by Paul Couvert.

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