I Built 30+ Developer Tools in One App (Because I Was Tired of Opening 47 Browser Tabs) 🤦♂️
Source: Dev.to
The “Aha!” Moment
After the 47th search for “free JSON formatter no login” I had an epiphany:
What if there was ONE tool that did EVERYTHING and actually respected my privacy?
So I built it. Meet Code Formatter – your Swiss‑army knife for web development.
What’s Inside? (The Good Stuff) 🛠️
1. Code Formatters & Beautifiers
- JSON Formatter (with syntax highlighting)
- HTML Beautifier
- CSS Formatter
- JavaScript Formatter
- SQL Formatter
- XML Formatter
No more copy‑pasting into sketchy websites. Format your code instantly.
2. Minifiers
Because production code shouldn’t look like a novel:
- CSS Minifier
- JavaScript Minifier
- HTML Minifier
One click. Instant compression. Ship faster.
3. Data Converters
The boring stuff made easy:
- JSON → CSV
- CSV → JSON
- Excel → HTML Table
- JSON ↔ XML
Ever needed to convert client data at 11:59 PM? Now you can.
4. Security Tools
For when you need crypto (the good kind):
- Hash Generator (MD5, SHA‑1, SHA‑256, SHA‑512)
- JWT Decoder
- Base64 Encoder/Decoder
- URL Encoder/Decoder
Perfect for testing auth flows without sending data to random websites.
5. CSS Generators
Stop Googling “glassmorphism generator”:
- Glassmorphism Generator
- Box‑Shadow Generator
- Text‑Shadow Generator
- Gradient Generator
- Aspect‑Ratio Calculator
Copy the CSS. Done. Ship it.
6. Utility Tools
The stuff you need but never bookmark:
- Text Diff Checker
- Lorem Ipsum Generator
- Mock Data Generator
- Color Picker
- Unit Converter
7. Preview Tools
- HTML Live Preview
- Markdown Preview
- Social‑Media Preview (Twitter, Facebook, LinkedIn cards)
Test your meta tags before shipping. Your designer will thank you.
But Wait… Is My Data Safe? 🔒
I literally cannot see your data. Even if I wanted to.
🛡️ 100 % Client‑Side Processing
Every single operation happens in your browser—not on my server, not in the cloud.
// What happens when you format JSON:
1. You paste code
2. JavaScript processes it locally
3. Result appears
4. Zero network requests
// What DOESN’T happen:
❌ No server upload
❌ No database storage
❌ No tracking scripts
❌ No analytics on your code
Why This Matters
When you use most online tools, your code goes through their servers. That means they can:
- Log it
- Store it
- Analyze it
- Suffer a data breach
With Code Formatter:
- Your API keys stay yours
- Your production code stays private
- Your client data stays confidential
- Your secrets stay secret
I built this because I was tired of sketchy tools asking for “permissions” to process my code.
The Tech Stack (For the Curious) 🤓
- Frontend: React + Vite (blazing fast)
- Styling: Tailwind CSS (because life’s too short for vanilla CSS)
- Processing: 100 % client‑side JavaScript
- Hosting: Vercel (for that sweet edge network)
- Libraries:
- Prettier (code formatting)
- PapaParse (CSV parsing)
- Crypto‑JS (hashing)
- Monaco Editor (syntax highlighting)
No backend. No database. No BS.
Features That Make Me Proud 😊
-
Works Offline – After the first load, it’s yours forever. No internet? No problem.
-
No Login Walls – No “Sign up to continue” pop‑ups.
-
No Ads – Your time is valuable.
-
Mobile Optimized – Format JSON on your phone at 2 AM.
-
Keyboard Shortcuts
Ctrl/Cmd + B– Format/BeautifyCtrl/Cmd + M– MinifyCtrl/Cmd + K– Clear
-
Dark Mode – Light mode in 2025? Come on. 😎
-
Open Source – Check the code yourself: [GitHub Link]
Don’t trust me? Read the code. That’s the beauty of open source.
Real Use Cases (From Real Devs)
Case 1: The API Response Formatter
// Messy API response:
{"user":{"name":"John","data":{"posts":[{"id":1,"title":"Hello"}]}}}
// One click later:
{
"user": {
"name": "John",
"data": {
"posts": [
{
"id": 1,
"title": "Hello"
}
]
}
}
}
Case 2: The Last‑Minute Minifier
It’s 11:58 PM. Deploy deadline is midnight. Your CSS is 150 KB.
One click → 47 KB. Shipped with 2 minutes to spare. 💪
Case 3: The Client Data Converter
Client sends an Excel file. You need an HTML table.
Upload → Convert → Copy → Done. (No Excel license needed)
Case 4: The JWT Debugger
Auth isn’t working. Is the JWT valid?
Paste → Decode → “Expired 3 hours ago.” Mystery solved.
Performance Numbers 📊
| Operation | Time | Where |
|---|---|---|
| Format 1 MB JSON | ~50 ms | Client‑side |
| Minify 500 KB CSS | ~30 ms | Client‑side |
| Convert 1 000 rows CSV | ~100 ms | Client‑side |
| Generate SHA‑256 hash | ~10 ms | Client‑side |
All tested on a 2020 MacBook Pro. Your mileage may vary.
Roadmap (What’s Coming Next) 🗺️
I’m actively working on:
- Image optimization tools
- SVG optimizer
- RegEx tester
- API request builder
- Cron expression generator
- Timestamp converter
- Color palette generator
- WebP converter
Want a feature? Drop a suggestion in the repo issues or contact me directly.
# Why I Built This
I'm tired of:
- Sketchy websites with malware
- Tools that require accounts
- Services that sell your data
- Ads everywhere
- Slow, bloated apps
I wanted **one tool** that:
- Respects privacy
- Works fast
- Has no BS
- Helps developers ship faster
So I built it. For me. For you. For all of us who just want to get sh*t done.
Try It Now 🚀
Link:
It’s free forever. No credit card. No signup. No tracking.
Just tools that work.
Let’s Connect!
If you find this useful:
- ⭐ Star it on GitHub
- 💬 Drop a comment with your favorite tool
- 🔄 Share with your dev friends
- 🐛 Found a bug? Let me know!
Built with ❤️ and too much coffee by a developer who was tired of 47 browser tabs.
FAQ
Q: Is it really free?
A: Yes. Forever. No hidden costs.
Q: Can I use it for commercial projects?
A: Absolutely. Go wild.
Q: Do you collect any data?
A: Nope. Zero data collection. I use simple analytics to see page views, but your code never leaves your browser.
Q: Can I contribute?
A: Yes! It’s open source. PRs welcome.
Q: Will there be a paid version?
A: No plans. This is a tool for the community.
Q: What if I find a bug?
A: GitHub issues or comment here. I’m pretty responsive.
Final Thoughts
Developer tools should be:
- Fast
- Private
- Free
- Useful
If you agree, give Code Formatter a try. If you have feedback, I’m all ears.
Now go format some JSON. You’ve earned it. 😎
Tags: #webdev #javascript #react #opensource #tools #developertools #programming #coding #productivity
P.S. If this helps you save even 10 minutes, it was worth building. If it saves you 10 hours, please share it so others can benefit too! 🙏