February 7, 2026

Why I Built TextBoi — A Lightweight AI Language Agent for the Desktop

The story behind TextBoi — how workflow frustration led to building a hotkey-driven AI translator and proofreading tool for macOS and Windows, built solo over 7 months.

By Sung B


For months, I found myself stuck in the same frustrating workflow.

I needed to translate or proofread a sentence. So I would:

  1. Copy the text
  2. Open a GPT chat window
  3. Paste it
  4. Ask for translation or correction
  5. Copy the result
  6. Go back to my original app
  7. Paste again
  8. And repeat.

Over and over.

For something that should take two seconds, the constant copy-paste and app switching completely broke my writing flow.

That friction was the beginning of TextBoi.


The Problem: GPT Is Powerful — But the Workflow Isn't

ChatGPT and GPT-powered tools are incredibly capable. But for everyday translation and proofreading, the workflow is inefficient.

What I wanted was simple:

  • Select text anywhere
  • Press a shortcut
  • Get translation or correction instantly
  • Keep writing

No browser tabs. No switching apps. No breaking concentration.

In other words:

Translate without copy-paste. Proofread without leaving your app.

That idea became TextBoi — a lightweight AI language agent that lives on your desktop.


Why I Built It Myself

At first, I considered outsourcing development.

But quotes were expensive. And early prototypes didn't meet my expectations in quality or usability.

So I made a decision:

If I care about this workflow this much, I should build it myself.

Even though I wasn't a professional developer.


Building TextBoi With ChatGPT as My Development Partner

I started from zero.

I didn't use AI just to generate code. I used it to learn.

  • Studied unfamiliar development concepts step by step
  • Researched Electron architecture
  • Learned cross-platform desktop behavior
  • Debugged packaging and deployment errors
  • Tested relentlessly

I initially tried code-generation agents like Cursor. But black-box code and unpredictable bugs made me uncomfortable.

I didn't want to ship something I didn't understand.

So I chose the harder path: Understand first. Build second. Ship with confidence.


Why It Took 7 Months

TextBoi is built with Electron for one reason: a true cross-platform AI desktop app for macOS and Windows.

Cross-platform sounds simple — until you ship it.

I faced:

  • File path synchronization issues
  • OS-specific permission differences
  • Packaging and distribution conflicts
  • Auto-update debugging
  • Deployment edge cases

Some bugs took days to isolate. But I didn't cut corners.


Security Was Not Optional

TextBoi connects to AI APIs and handles user data. Security had to be first-class.

From the beginning, I implemented:

Supabase Row Level Security (RLS)

Carefully configured to prevent unauthorized data access.

API Key Protection via Cloudflare Workers

All AI requests pass through a secure proxy layer. No API keys are exposed in the client.

Today, TextBoi is production-ready and secure by design.


The Business Model: Practical and Affordable

Many AI writing tools push "unlimited" plans.

But realistically, most users don't need unlimited usage.

My assumption: most users translate or proofread 3–5 days per week, for less than 3 hours per day.

So pricing is simple:

  • Free plan with generous usage
  • Basic plan at $5/month
  • Millions of characters per month
  • No aggressive upselling

Lightweight technically. Lightweight financially.


What TextBoi Is Today

TextBoi is:

  • A lightweight AI language agent on your desktop
  • A shortcut-based AI translator
  • An AI proofreading tool for macOS and Windows
  • Built with GPT-5, GPT-4.1, and GPT-4o
  • Supporting 150+ languages
  • Designed for fast, uninterrupted writing flow

But more than that — it represents 7 months of learning, debugging, testing, and persistence.

Built by a non-developer. Powered by AI. Driven by workflow frustration.


Why I'm Launching It Now

Because I know I'm not the only one tired of:

  • Copy → Paste → Ask → Copy → Paste
  • Switching browser tabs
  • Breaking writing concentration

If you use AI for translation or proofreading daily, you deserve a better workflow.

That's why I built TextBoi. And now, I'm finally ready to launch it.


Who TextBoi Is For

If you're looking for:

  • An AI proofreading tool for desktop
  • A faster way to translate text
  • A shortcut-based AI writing assistant
  • A secure and affordable AI language agent

TextBoi might be exactly what you need.


Closing Thought

This wasn't just about building an app.

It was about building something I personally needed — and learning everything required to make it real.

Seven months later, it's here.


Try it yourself — Download for Mac or Download for Windows. Free to start.


📚 Related Articles

Try it free

If you write daily, this will save you hours.

Download TextBoi and try it in your real workflow. Free to start — no credit card.

Try it yourself

See the Cmd/Ctrl+C+C workflow in action

Select the text below and press Cmd+C+C — or click Try Demo.

Interactive Demo

Try it yourself — you'll feel the difference in 5 seconds.

This demo shows what your workflow looks like after using TextBoi.

Select the text below, then press Cmd+C+C — try it once and you'll immediately understand.

Simulated demo — results are pre-written to show how textBoi works.

Your writing
→ Will be translated to your language
177 chars
1Select text2Press Cmd+C+C
textBoi
English (English)

Just got back from the team meeting. Everyone agreed the new feature should ship by Friday, but we still need to finalize the design and run a quick test before pushing it live.

177 / 50,000
Korean (한국어)

🖥 Set the model and language first. Select text and press Cmd+C+C.

If you write daily, this will save you hours.

Download TextBoi and try it in your real workflow.

Download TextBoi Free

Free to start. No credit card.