Why I Built a 100% Client-Side Developer Suite (And Stopped Trusting Online Formatters)

mahajanprince098@gmail.com — Sat, 03 Oct 2026 16:34:50 +0000

If you are anything like me, your day involves jumping across completely different technical challenges. One moment, I might be diving deep into core C programming, mapping out binary tree reconstructions, or writing algorithms for matrix addition. The next, I could be rendering dark-themed interactive music applications using Three.js, fine-tuning audio equalizers and loop functionalities.

But regardless of the complex systems I am building, I consistently hit the exact same annoying bottleneck: everyday workflow utilities.

Whenever I needed to quickly format a massive JSON payload, verify a SHA-256 hash, or check WCAG color contrast for a UI component, I had to rely on random Google searches.

The Privacy and Friction Problem
The online developer utility ecosystem is currently broken. Most top-ranking tools share the same fundamental flaws:

Data Privacy: Pasting sensitive API keys, JWTs, or client JSON data into a random browser tool often means sending that data to an unknown backend server.
Friction: You are bombarded with display ads, forced sign-up walls, or delayed loading times before you can even click "Format".

I wanted a seamless, secure workflow. After spending some time researching professional, memorable domain naming strategies, I decided to fix my own problem and launched DevProo.

Enter DevProo: Zero Friction, 100% Client-Side
DevProo is a privacy-first hub for everyday digital utilities. My architectural philosophy for this was simple: Process everything in the browser.

Privacy by Default: Because it relies entirely on client-side processing, your data never leaves your device. It does not touch a server.

Lightning Fast: No server round-trips mean instant conversions.
No Ads, No Logins: Just a clean UI designed to get you your result instantly so you can get back to your IDE.

What is currently live?
I’ve initially shipped the tools I found myself needing the most on a daily basis:

Data: Fast JSON formatters and JWT utilities.
Security: SHA-256 and various Hash Generators.
Time: Epoch and Timezone converters.
Design: Favicon generators and Contrast Checkers for frontend work.

I'd love your feedback!
Building this has been a refreshing shift from complex data structures and 3D visualizers to solving purely practical workflow friction.

I am actively maintaining DevProo and would genuinely value feedback from this community. You can try it out here: devproo.co.in.

What is that one small, annoying task in your daily workflow that I should build a client-side tool for next? Let me know in the comments!

Why you should stop pasting your JSON and JWTs in random online tools (And what I built instead)

mahajanprince098@gmail.com — Mon, 21 Sep 2026 17:25:38 +0000

We’ve all been there. You are deep in the debugging zone, you need to quickly format a massive JSON payload, verify a SHA-256 hash, or decode a JWT.

What’s the first thing you do? You Google "JSON formatter online" and click the first link.

For a long time, I did the same. But eventually, I realized how broken this workflow is.

The Problem with Most Online Dev Tools

Most top-ranking developer utility sites suffer from three major issues:

Privacy Risks: When you paste your company’s JSON data or a JWT into a random online tool, you are often sending that data to their backend server.
Ad Clutter: Finding the actual "Format" button among 5 different Google Ads is incredibly frustrating.
Friction: Some tools now ask you to create an account or hit a paywall after 3 uses.

As developers, we need our tools to be invisible. We need them to be fast, secure, and get out of the way.

Building a Client-Side Alternative

I decided to build my own suite of tools where privacy is the default, not a feature.

Enter DevProo — a completely free, zero-friction developer tools hub.

My philosophy for building DevProo was simple:

100% Client-Side: Everything runs locally in your browser. Whether you are generating a hash or formatting JSON, your data never leaves your machine.
Zero Friction: No sign-ups, no logins, no paywalls.
No Clutter: A clean UI so you can get in, get your result, and get back to your IDE.

What's inside?

Currently, I've built the utilities that I use the most on a daily basis:

Data Formatting: JSON & JWT utilities.
Security: SHA-256 and Hash Generators.
Time: Epoch and Timezone converters.
UI/UX: WCAG Contrast Checkers and Favicon generators.

I'd love your feedback!

I am actively maintaining this and adding new tools every week.

I’d love for you to try it out at DevProo.co.in and let me know what you think.

What is that one small utility tool you use every day that you'd like me to add to this suite? Let me know in the comments!

productivity #showdev #javascript #showdev