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CertainThing

An AI vibe coding platform that turns natural language into deployable vanilla web apps

AI & Machine Learning
alessandro demontisby alessandro demontis
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About CertainThing

CertainThing is an AI-powered "vibe coding" platform designed to help users build and deploy web applications in under 60 seconds. By using natural language, users can describe their ideas, watch the AI plan and implement them in real-time, and deploy the results to a personal URL, GitHub, or as a ZIP file.

Key Features

  • Vanilla Stack: Generates pure HTML, CSS, JS, and PHP, ensuring compatibility with any hosting provider.
  • Reasoning Pane: Provides full transparency into the AI's planning and implementation process.
  • Multimodal Input: Supports text, image uploads, and URL scraping to extract structure and style from existing websites.
  • One-Click Deployment: Offers instant deployment to a personal URL, direct GitHub push, and ZIP export.
  • Voice Prompt: Allows hands-free coding using browser-based voice recognition.
  • Empathetic Debugger: Provides constructive, non-judgmental feedback on code issues.
  • Prompts Library: predefined prompts for fast creations.

Pricing & Plans

  • Subscription: Costs €4.99/month.
  • Unlimited Tokens: Uses a BYOK (Bring Your Own Key) model, allowing users to connect their own OpenAI API key to pay only for actual usage.

How it Works

  1. Describe: Input your project requirements in plain language.
  2. Watch: Observe the AI's logic via the Reasoning Pane.
  3. Preview: View the live, sandboxed output.
  4. Iterate: Refine the project through follow-up prompts.
  5. Ship: Deploy, export, or push to GitHub with a single click.

Frequently asked questions about CertainThing

How much does CertainThing cost?+

The platform costs €4.99 per month. You also provide your own OpenAI API key, so you pay for your token usage directly to OpenAI.

What kind of code does CertainThing generate?+

It generates vanilla HTML, CSS, JavaScript, and PHP. This stack is designed to be portable and works on almost any hosting provider.

Do I need to install any software to use it?+

No, there is zero configuration required. You do not need to install a CLI or set up a local environment; it works entirely in your web browser.

Can I use my own domain or hosting?+

Yes, because the tool generates standard web files, you can export your project as a ZIP file or push it to GitHub to host it on any server that supports PHP.

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