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How I Built and Launched Prompt Formatter v1

A behind-the-scenes look at building and shipping my first indie AI product: Prompt Formatter.

Brandon Ta
Brandon Ta
May 3, 2025 · 3 min read
AI prompt engineering buildinpublic product launch
How I Built and Launched Prompt Formatter v1

🚀 Prompt Formatter v1 – From Idea to Launch

Hey friends! After more than a month of designing, coding, testing (and occasionally wanting to throw my laptop 😅), I’m officially launching Prompt Formatter v1 at: https://www.pformatter.com

This is my first indie hacker product – a tool that helps you transform raw prompts into clean, AI-ready formats for ChatGPT, Gemini, Claude… in just one click.

🎯 What is Prompt Formatter?

Prompt Formatter helps you write prompts like a pro – structured, tone-aware, task-specific, and optimized for your target AI model.

No need to memorize prompt structures, no guessing. Everything is streamlined and automated.

✅ What’s Included in v1

  • 🪄 Format Prompt: Auto-detects task type and applies best-fit templates
  • 🧠 Configure Role, Use-case, Tone, Model, and Language
  • 🔍 Input Validation: Filters out low-quality prompts
  • 🔄 Prompt Enhancer: AI-powered rewriting suggestions
  • 💡 Prompt Coaching: Inline guidance to improve clarity
  • 📁 Prompt Library: Save and manage your formatted prompts
  • 🔗 Run Prompt: Open directly in ChatGPT, Gemini…
  • ⚙️ Smart Evaluation: Direct answers for simple questions
  • 🌍 Multilingual Support [VI], [EN], [JP]
  • 🧑‍💼 Role & Use Case Selector

🔧 How the Format Flow Works

  1. Validate your input
  2. If it’s a simple question → return direct answer
  3. Else → Detect task type (e.g., blog, analysis, bug fix…)
  4. Load the right template
  5. Format using O1-style structure
  6. Inject coaching tips or enhancement suggestions
  7. Return full result (with Copy, Edit, Run Prompt options)

🖥️ What’s Cool in the UI?

  • Smooth loading spinner (feels like real “AI work”)
  • Step-by-step progress display
  • Preview partial results quickly
  • Clear error messages (auto-cleanup after timeout 😎)

🌟 Why Try It?

  • Fast: Handles 1000-word prompts in under 2 seconds
  • Accurate: Structures based on real-world prompt best practices
  • Seamless: One click to open in your preferred AI tool
  • Educational: You learn better prompt habits as you go

🔜 What’s Coming in 2 Weeks?

I’m building v1.1, launching in two weeks with these upgrades:

  • ✅ Direct Answer Panel UI
  • ✅ Tone Visualizer: See how your prompt changes with tone
  • ✅ Shareable Prompts with privacy control
  • ✅ Pro Plan: Higher token quota and faster formatting

Follow me on X (Twitter) for launch updates!

🙌 Try It Out & Share Your Feedback!

  1. Visit https://www.pformatter.com
  2. Enter the prompt you’re working on
  3. Hit “Format Prompt” and watch the magic
  4. Copy & test it in Gemini or ChatGPT
  5. If it works great (or not yet 😅), send your thoughts my way!

📬 I need your feedback to improve Prompt Formatter. Suggestions, ideas, criticisms – all are welcome. Every piece of feedback is pure gold to a solo indie dev 🙏

I’m building this in public – transparently, openly, and with full heart.
If you find Prompt Formatter helpful, please share it with others!

Thanks for reading. See you in version 1.1! 🔥

—
Brandon Ta
https://www.pformatter.com

Brandon Ta

Written by Brandon Ta

Indie Hacker & AI Builder. Building AI tools and sharing the journey publicly.

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