This content originally appeared on DEV Community and was authored by Sorabh Rohila

If you’ve ever worked with APIs, you know the struggle — you get a huge blob of unformatted JSON and can’t make sense of it.

Hey everyone I’m Sorabh, a digital marketer and tool builder who loves creating small utilities that make developers’ lives easier.
Recently, I built something that solved one of my biggest everyday frustrations: dealing with messy JSON data.

So, meet my latest creation — JSON Formatter Online

Why I Built This Tool

Every developer has opened a JSON file that looks like a wall of text.
When I tried existing online formatters, I ran into the same problems:

Cluttered UIs filled with ads

Slow performance on large JSON files

Or even worse — tools that send your data to a remote server

That’s why I built JSON Formatter Online: a lightweight, privacy-friendly, and super-fast JSON formatting tool that works entirely inside your browser.

What You Can Do with JSON Formatter Online

Beautify JSON: Instantly format your JSON to make it clean and readable.
Validate JSON: Catch syntax errors before they break your code.
Minify JSON: Compress large JSON files for faster API or app loading.
Edit & Copy JSON: Make quick edits and copy the result in one click.
Secure & Offline: Your JSON never leaves your browser — zero data tracking.

Works on desktop and mobile; no installation needed.

Try it here → [https://jsonformatteronline.net]

How It Works

Built using HTML, CSS, JavaScript, and PHP, this tool uses a simple client-side engine for JSON parsing and formatting.
It’s optimised to handle large JSON files without lag, even on low-end devices.

What Makes It Stand Out

Unlike most tools that rely on server processing, this formatter runs 100% client-side — meaning:

Super-fast performance

Complete privacy

Lightweight and minimal

It’s not just another JSON prettifier—it’s a developer-focused formatter built with real-world workflows in mind.

Roadmap & Upcoming Features

I’m currently working on adding:

JSON CSV Converter

Dark Mode for Night Owls

Error Highlighter & Auto-Fix Suggestions

API Formatter Integration

Have any other ideas? I’d love to hear your suggestions in the comments

Tech Stack

Frontend: Vanilla JavaScript, HTML5, CSS3

Backend: PHP for lightweight data handling

Hosting: Fast, SEO-friendly static environment

Try the Tool

*[https://jsonformatteronline.net]
*
Give it a try and tell me how it performs for your projects.
If you find it useful, a simple share or feedback comment would mean a lot.

Tags

webdev #javascript #frontend #json #tools #opensource #productivity #developer

This content originally appeared on DEV Community and was authored by Sorabh Rohila