Over the past few weeks, we built CornerPen, a free online tools platform for productivity, text utilities, developer tools, converters, and other quick-use web apps.

But instead of just sharing the project, I wanted to share how we actually built it using AI-assisted workflows and vibe coding.

Stack & Tools We Used

AI / Coding Tools

• Cursor AI for most of the development workflow
• OpenAI Codex for code generation, debugging, and refactoring
• ChatGPT for planning logic, fixing edge cases, and UI ideas

Tech Stack

• Next.js
• Tailwind CSS
• TypeScript

We used Netlify free cloud hosting to publicly test and deploy the website at zero cost while preparing for future growth and scaling.

Would Love Feedback From Other Builders

Especially curious about:

• How you structure vibe coding workflows
• Cursor best practices
• Managing large AI-generated codebases
• Any ideas/features we should add

Project:
👉 CornerPen

Happy to answer questions about the workflow/build process too 🙌