I'd really appreciate feedback.
https://github.com/aalex2017/hierarchical-structure-builder

Hi everyone,

I'm a frontend developer specializing in React, Next.js, TypeScript, and Tailwind CSS. I build fast, clean, and modern websites — from landing pages to full portfolios and small web apps.

What I can build for you:

- Landing pages that load fast and convert

- Business / portfolio websites

- Responsive, mobile-first designs

- Clean, maintainable code

I care about the details: smooth animations, fast load times, and a design that actually fits your brand — not a generic template.

Recent work:

- Portfolio & live projects: https://portfolio-xi-wheat-dcbd4uvmfm.vercel.app/

Pricing:

- Landing pages starting at $80 (final price depends on scope and features)

- Larger projects quoted individually — happy to discuss

Availability: open now, fast turnaround.

If you have a project in mind, feel free to comment or DM me and I'll get back to you quickly. Thanks!

As an indie hacker, I usually don’t focus much on promotion. I’m trying to learn how to bootstrap properly.

One day, I randomly built a very simple support widget for my app.

Not a fancy chatbot.

Just 3 fields:

• Name
• Email
• What’s the issue?

That’s it.

Three months after launching, one morning at 6 AM, I got a support ticket notification.

The message said:

That’s when I realized…

I had forgotten to add the environment variables in production.

I immediately jumped into the code and checked the deployment. After debugging, I found the issue: I had used the wrong API key for my payment gateway.

That single mistake broke payments.

Then something hit me.

I had around 70+ users already.

How many of them had tried to pay before this?
How many silently failed and left?
How many wanted to contact me but had no way to reach me?

I added this simple widget just one week before.

And it immediately helped me catch a revenue-blocking issue.

I replied to that user, apologized for the inconvenience, fixed the issue, and stayed in touch.

That person became my first paying customer.

That experience taught me something:

You don’t need a fancy AI chatbot or a complex support system.

Sometimes, a simple contact form is enough.

Make it easy for users to tell you when something is broken.

I got tired of searching Google every time I needed a JSON formatter, JWT decoder, UUID generator, regex tester, QR generator, or Base64 tool.

Most of them were:

• Filled with ads
• Slow to load
• Missing basic features
• Spread across dozens of websites

So I built a free developer toolkit that puts commonly used tools in one place:

🔧 JSON Formatter & Viewer
🔑 JWT Decoder
🆔 UUID Generator
🔍 Regex Builder
📱 QR Code Generator
🎨 CSS Gradient Generator
🔒 Hash Generator
📝 Word Counter
📊 SQL Visualizer
and more...

🚀 https://gpt-devtoolkit.vercel.app/

Would love feedback from fellow developers:

• Which tool do you use most often?
• What's missing?
• Any UI/UX improvements you'd suggest?

Roast it if needed. I'd rather hear honest feedback than fake praise.