My First Weekend Project: I Built a JSON Tool People Actually Use

Last weekend, I sat down with zero expectations just a basic idea and a blank code editor.

By Sunday night, I launched https://jsonformatter.online, a simple web tool that formats, validates, beautifies, and even edits JSON. I posted it in a few dev Slack groups, tweeted it, and forgot about it.

The next morning? Over 300 people had already used it.

Turns out, devs are constantly copy-pasting JSON into tools that are slow, spammy, or filled with ads. I stripped that away—no fluff, just clean JSON formatting and validation in one place. It's blazing fast, no logins, and totally free.

Since then, I’ve been:

Adding new tools like JSON to CSV, tree view, and error highlighting
Watching traffic trickle in from GitHub, Reddit, and Google
Learning SEO, analytics, and a bit of product thinking
It’s not changing the world, but it gave me confidence. You don’t need a complex idea—just solve one tiny problem cleanly.

If you’ve ever thought: “Should I build this?”—yes. Do it. You might surprise yourself like I did.

👉 Try it here: https://jsonformatter.online