Stop pasting production tokens into random websites 🔐 — I built 50+ dev tools that never leave your browser

DevToolsHub — Tue, 06 Oct 2026 11:12:21 +0000

TL;DR — I built It's All Dev Tools: 50+ free developer utilities that run entirely in your browser. No uploads. No sign-up. Works offline. Built with Blazor WebAssembly + .NET 8. 🚀

😬 Be honest… have you ever done this?

It's 6 PM. Something's broken in production. You grab a JWT from the logs, Google "jwt decoder", click the first result and paste it in.

Then it hits you:

"Wait… where did that token just go?"

Most online tools quietly send your input to their server. That's fine for lorem ipsum. It's not fine for:

🔑 Access tokens and API keys
📜 Certificates
📦 API payloads with customer data
🧾 Internal config files

So I built the toolbox I actually wanted to use.

✨ Meet It's All Dev Tools


🔒 Private by design	Everything runs client-side. Your data never leaves the tab.
🚫 No sign-up	Open the page, use the tool. That's it.
✈️ Works offline	Once a page loads, you can pull the network cable.
⚡ Fast	Pages are prerendered to static HTML, then come alive with Blazor.
💸 Free	No paywalls, no "upgrade to Pro" pop-ups.

👉 Try it now: itsalldevtools.com

🧰 What's in the toolbox?

🛠️ Under the hood

┌───────────────────────────────┐
│   Prerendered static HTML     │  ← fast first paint + SEO
├───────────────────────────────┤
│  Blazor WebAssembly (.NET 8)  │  ← all tool logic in C#
├───────────────────────────────┤
│         Your browser          │  ← the only place your data lives
└───────────────────────────────┘

My favorite perk of using .NET: the Regex Tester runs the real .NET regex engine. What matches here matches in your C# code. No more "works in the JS tester, fails in production" surprises. 🎯

💡 3 things I learned building it

1. Prerendering is a must for Blazor WASM.
Without it, users stare at a loading spinner and search engines see an empty page. With it, content appears instantly and Google can index every tool.

2. Privacy turned out to be the real selling point.
"Runs in your browser" sounds like a tech detail. For developers handling real tokens and data, it's the reason to use the site.

3. Small tools add up.
Each tool is tiny on its own. Together they replace a dozen ad-filled bookmarks.

🙌 Your turn

I'm actively adding new tools, and I'd love your input:

💬 What tool do you Google every week? Tell me in the comments.

👉 itsalldevtools.com

Thanks for reading my first DEV post! 💜

DEV Community: DevToolsHub

Stop pasting production tokens into random websites 🔐 — I built 50+ dev tools that never leave your browser

😬 Be honest… have you ever done this?

✨ Meet It's All Dev Tools

🧰 What's in the toolbox?

🧹 Format & validate

🔐 Encode & decode

🎲 Generate

🔄 Convert

⚡ Bonus: Electrical engineering

🛠️ Under the hood

💡 3 things I learned building it

🙌 Your turn